combination gfci shunt trip breaker

• Forum Listing
• Marketplace
• Advanced Search
• General Electrical
• General Electrical Discussion

GFCI Shunt trip Breaker

• Add to quote

Does anyone know if they make a shunt trip GFCI breaker. They want them for gas stoves in a kitchen.  

Yeah, but you normally dump the main to a little subpanel for all the stuff under the hood.  

I just noticed that the Square D catalog says that the shunt trip option isn't available with molded case GFCI and equipment protector breakers. Didn't know that. I know I've gotten them with the bell alarm contact option, so I just assumed that shunt trip would be available. Guess not. That leaves you with the option of installing a contactor for your under-hood stuff, or dumping the main for an under-hood subpanel. That's normally what I do, since there's more electric stuff under the hood than just the gas pilots.  

• ?            
• 93.6K members

Top Contributors this Month

Galvin Power is reader-supported. When you buy via our links, we may earn a commission at no cost to you. Learn more

What is a Shunt Trip Breaker and How Does It Work?

Written by  Edwin Jones  / Fact checked by  Andrew Wright

What is a shunt trip breaker? Does it add protection to your electrical system?

The shunt trip breaker is a combination of the shunt trip accessory and the main circuit breaker. This installs on the main breaker to add protection to your electrical system. This adds security to your electrical system as it manually or automatically cuts the electric supply in your circuit.

This accessory can help prevent short circuits and avoid electrical damage should a disaster occur in your home.

Let me tell you more about the shunt trip breaker to help you decide if you need additional protection for your electrical system.

Table of Contents

What is Shunt Trip Breaker and How Does It Work

Where are shunt trip breakers most used, how to install a shunt trip accessory to the breaker.

You should know that shunt trip breakers are different from GFCI circuit breakers.

The GFCI circuit breaker contains one big white tail wire for neutral connections only. It cannot be connected to any control package because the GFCI circuit breaker is solely designed to detect a sudden electrical surge. It has no other purpose but to cut power in case of a short.

Meanwhile, the shunt trip breaker wiring comprises two wires. One connected to the ground, and another to a control system. The control system can be connected to a sensor or to a manual switch. When activated, the shunt trip accessory will cause the main breaker to trip.

For example, if you install a shunt trip with a smoke detector, it will activate and cut off the power should the smoke sensor trigger. It can also be installed with a remote switch , allowing you to trip your breaker manually.

It is crucial to know the difference between a regular circuit breaker and a circuit breaker installed with shunt trip accessories.

The shunt trip definition means that it is a way to cut off electrical power through other sensors, not just via thermal activation. Since this is an optional accessory for a circuit breaker, it is not required for a home electrical system.

However, it is recommended for added safety. This is especially true if you’re working with industrial machinery. Furthermore, you can use it as a manual emergency switch to shut down your main breaker.

Before installing a shunt trip, consider its cost and your existing system. You may need to change the breaker panel  and circuit breakers, especially if it is not compatible with shunt trips. You may also need a new line to connect the remote emergency switch to your breaker box.

Generally, most commercial kitchens, elevators, and offices have this shunt trip breaker because it is required. Commercial kitchens use this device in compliance with ANSI/ASME CSD-1, while elevators and escalators comply with ASME A17.1. These codes refer to the controls and safety standards provided by ASME’s.

This question is a topic of discussion among Reddit members as well. Join the conversation here:

Found at a dominos by u/Guilty_Sympathy_496 in electricians

Mostly, installing a shunt trip relay requires that the breaker and the shunt be from the same maker. Also, not all breaker models are compatible with this accessory.

Once you’re sure that your system can take a shunt trip accessory, installation is pretty much straightforward. You can watch this video by Aaron CBIONE for some tutorials.

Note: Every circuit breaker comes with different instructions. It would depend on the brand and model of the breaker .

However, the critical part of every installation is that you need to connect the shunt to your sensor. You may need a shunt trip breaker diagram as a reference to ensure correct installation.

Also, check the brand and model of your breaker before proceeding with the installation. Some makers only allow a factory install of the shunt trip and other accessories. DIY installation may void the warranty of your breakers. It’s best to read up on the manual or consult an electrical professional before making any changes.

What is a shunt trip breaker? The shunt trip is an optional accessory for a circuit breaker for added protection to your system. It is designed to connect to a secondary sensor. It will trip the breaker automatically if the sensor is triggered. It can also be activated via a remote switch that you can install.

Do you think that a circuit breaker is enough to protect your investment? Or do you want an additional layer of protection for your electrical circuit? If you’re not decided yet, reach out to me in the comments section below, and I will be happy to help you.

I am Andrew Wright. With 8 years of experience designing, installing, and maintaining electrical power systems. I love my job, and I have always wanted to offer others the necessary help so they can take care of their houses.

• Electrical Repair
• Lighting Installation
• Hot Tub Wiring
• Emergency Electrical Service
• Ceiling Fan Installation
• Generator Installation
• Commercial Lighting Services
• Electrical Inspection
• What Is a Shunt Trip Breaker and How Does It Work

What Is a Shunt Trip Breaker and How Does It Work?

First things first: what is a shunt trip breaker? A shunt trip breaker is a specialized circuit breaker that is designed to remotely shut off power to a circuit in emergency situations, such as a fire or security breach. These breakers are commonly used in commercial and industrial buildings, as well as other facilities where safety is a top priority. In this article, we'll explore this type of breaker in detail and explain why hiring an  electrical services provider for a wiring shunt trip breaker is essential. 

The Many Benefits of a Shunt Breaker

Let’s recap: a shunt trip breaker is an electrical component connected to a circuit breaker and allows for remote operation through a schematic and AMP connection. Now that you know what a shunt trip circuit breaker is, it's time to move to the next part of this article: the benefits of using a shunt breaker.

• Remote Shut-Off: One of the main benefits of shunt breakers is that they can be remotely shut off in the event of an emergency. This allows them to quickly and easily disconnect power in a fire or other emergency, which can help prevent damage to the building and protect the occupants.
• Increased Safety: Besides remote shut-off, shunt trip circuit breakers provide an added level of safety and security by automatically shutting off power to a circuit in the event of an emergency. This helps prevent electrical fires and other hazards, protecting both people and property.
• Easy Installation: Shunt breakers are relatively easy to install and can be integrated into existing electrical systems, making it possible to retrofit older buildings with these devices.
• Cost-Effective: A shunt breaker is a cost-effective solution for increasing safety and security in commercial and industrial buildings. They are relatively inexpensive to purchase and install and can help prevent costly damage to the building and its contents in case of any emergency.
• Compatibility: Shunt breakers are compatible with a wide range of electrical systems and devices, making them a versatile and practical solution for increasing safety in various settings.

How Does a Shunt Trip Breaker Work?

A shunt trip breaker works by tripping the breaker when it receives a signal from an external device, such as a fire alarm or security system. This helps to prevent dangerous electrical fires or other hazards. When an emergency occurs, the external device sends a signal to the breaker, which causes the breaker to trip and open the circuit, interrupting the flow of electricity and preventing power from reaching the circuit, allowing for a quick and easy power disconnection.

Types of Shunt Trip Breakers

Now that you know the answer to "How does a shunt trip breaker work", it's time to discover about the two main types of shunt trip breakers.

• Manual Shunt Trip Breaker: This type of trip breaker requires manual intervention to reset the breaker after it has been tripped, meaning someone must physically go to the breaker and reset it after an emergency situation. This breaker is typically used in smaller residential buildings or situations where a dedicated staff member is available to reset the breaker.
• Automatic Shunt Trip Breaker: This type of breaker can automatically reset itself after being tripped and is typically used in larger buildings or in situations where there is not always someone available to reset the breaker. These breakers are often connected to fire alarm systems or other emergency management systems for auto-reset.

When is a Shunt Trip Breaker Required?

If you're wondering when is a shunt trip breaker required, know that it is required in any electrical system where there is a need to quickly and easily shut off power in the event of an emergency, such as a fire or security breach. Continue reading as we describe the importance of using shunt trip breakers and how to figure out which one you need to use for your building or facility.

The Importance of Using a Shunt Trip Breaker

• Shunt trip breakers automatically shut off power in emergencies.
• They prevent dangerous electrical fires and other hazards.
• They allow for quick and easy power disconnection in emergencies.
• They are easy to install and cost-effective solutions for increasing safety.
• They can be connected to fire alarm and emergency management systems.
• They ensure that the electrical system is in compliance with safety regulations.
• They are a versatile and practical solution for increasing safety in various settings.

Which Type of Shunt Trip Breaker to Use?

A manual breaker may be appropriate for a smaller building or in situations with a dedicated staff member available to reset the breaker, while an automatic breaker may be more appropriate for a larger building or in situations where someone is not always available to reset the breaker. Another option to consider is the use of a shunt trip relay, which can be used to trigger a shunt trip breaker remotely. These relays are typically connected to fire alarm systems or other emergency management systems and can send a signal to the breaker to trip it when an emergency occurs.

Shunt Trip Breaker Wiring Diagram

If you're wondering how to wire a shunt trip breaker, know that wiring can seem like a daunting task, but with the right knowledge and tools, it can be done relatively easily. Follow the steps below:

• Obtain a "How to wire a shunt trip breaker wiring diagram." (Check above).
• Gather necessary tools and materials such as wire strippers, nuts, and a voltage tester.
• Disconnect the power and wire the shunt breaker according to the instructions provided.
• Reconnect power to the circuit and test the breaker to ensure it works properly.

It is important to pay close attention to the diagram and follow the instructions carefully. This will ensure that the breaker is wired correctly and functions. Once the wiring is complete, you can reconnect the power to the circuit and test the breaker to ensure that it is working properly. It is always better to consult with a professional if you aren't confident about the wiring process. 

What Does a Shunt Trip Breaker Do?

We hope by now you know what does a shunt trip breaker do, but here's a recap: a shunt trip breaker is a specialized circuit breaker that protects your house electrical systems from damage or hazards in emergencies. It works by tripping the breaker when it receives a signal from an external device, such as a fire alarm or security system, preventing dangerous electrical fires or other regular hazards.

Nevertheless, it is important to understand what does shunt mean in electrical terms and the role of electrical shunt trip breakers in commercial and industrial settings. Finally, to determine the appropriate type of breaker for your specific needs, it is best to consult an electrical services provider. If you're based in Colorado or surrounding areas, McCarrick Electric has got you covered.

Superior Electrical Solutions in Colorado 

At McCarrick Electric, we have 25+ years of experience providing top-quality electrical services in Colorado. We value all of our customers, and that's why we offer a 15% discount for first-time residential clients and veterans. We take pride in our integrity, attention to detail, and cost-effectiveness. For more information, connect with us via our contact form or give us a call.

Latest Blog Entries

What to Do If Your Circuit Breaker Keeps Tripping?

Why Is Your Breaker Box Outside House? Here Are the Reasons

Why Won’t My GFCI Outlet Reset? How to Troubleshoot a GFCI Outlet

5 Ways to Prevent Short Circuits

• Actuators and motion control
• Backup power, UPS, surge & IT power distribution
• Clutches and brakes
• Conduit, cable & wire management
• Differentials
• Ducting solutions
• Electrical circuit protection
• Electric vehicles and EV charging
• Electronic components
• Energy storage systems
• Engine solutions
• Filtration solutions
• Fuel systems, emissions and components
• Hose, tubing, fittings and connectors
• Hydraulic motors and generators
• Hydraulic power packs and accumulators
• Industrial controls, drives, automation and sensors
• Life support systems
• Lighting and controls
• Low-voltage power distribution & control systems
• Medium-voltage power distribution & control systems
• Process safety, automation, test and measurement
• Residential
• Safety, security & emergency communications
• Server racks, enclosures & thermal management
• Support systems
• Transmissions
• Utility & grid solutions
• Wiring devices & connectivity
• Brightlayer Experience Hub
• Discover Brightlayer
• Explore our digital catalog
• For developers
• Understanding Industry 4.0
• Data centers
• Eaton Experience Centers
• Food and beverage
• Government and military
• Machine building
• Mining, metals and minerals
• Oil and gas

• News & insights
• Investor relations
• Research & development
• Corporate governance
• Sustainability
• Inclusion & diversity
• Ethics & compliance
• Partnering with Eaton
• Selling to Eaton
• Locate a distributor
• Technical support

• QBGFEP2020W1
• Cable-in/cable-out miniature circuit breakers and supplementary protectors brochure
• Miniature circuit breakers and supplementary protectors catalog

Products cannot be sold together

Products in your cart cannot be sold together in one transaction. Please choose to either keep your existing cart, or create a new cart with this product.

You can purchase your products in separate transactions.

Item is already in the cart.

Related products.

BR loadcenters

Residential meter stacks

Need product support?

Support from Eaton

Technical Support Information

Questions before you buy, or on a product you already own? 877-386-2273 Opt 2, Opt 2 Opt 2  [email protected]

General specifications

Physical attributes, performance ratings, miscellaneous.

• Loadcenters and Circuit Breakers -->
• Eaton's Volume 4—Circuit Protection -->

Specifications and datasheets

• Eaton Specification Sheet - QBGFEP2020W1 -->
• Circuit Breaker Time/Current Curves For QUICKLAG. Industrial Circuit Breakers -->

Export product specification

• QC cable-In cable-Out

• Inclusion and Diversity
• News and insights
• Slavery and human trafficking statement
• Policies and statements
• Terms and conditions
• Responsible sourcing of conflict minerals
• Subscribe to emails

Let's talk big ideas

• Privacy, cookies & data protection policy
• Do not sell my data request (CCPA and other states)

Will a GFCI Tester Trip a Breaker? Unveiling the Truth Behind the Test

Spread The Word

Have you ever wondered if using a GFCI tester could trip a circuit breaker? You’re not alone. Many homeowners and electricians have posed this question, especially when concerned about the safety and functionality of their electrical systems. In this article, we will explore the relationship between GFCI testers and circuit breakers, helping you gain a better understanding of how these devices work together.

GFCI testers are designed to detect electrical inconsistencies and ensure the proper functioning of ground fault circuit interrupter (GFCI) outlets. These handy devices play a vital role in maintaining a safe and efficient electrical system in your home. However, as with any tool or device, it’s essential to know how they interact with other components, such as circuit breakers. In my experience working with electrical systems, I’ve discovered that GFCI testers can indeed trip breakers in certain situations.

In the following sections, we’ll delve deeper into the circumstances under which a GFCI tester might trip a breaker, as well as how to test GFCI breakers properly. So, sit back, relax, and get ready for an electrifying journey through the world of GFCI testers and circuit breakers.

Heads up!  Before we get too far along here, if you want to connect with other homeowners, DIYers, and builders and get more great ideas for your home to make your space the best join my free private Facebook group,  Remodel Reality here .

Understanding GFCI Testers

Ever been puzzled by how GFCI testers work? They are essential tools for ensuring the safety of your electrical system . In this section, we will dive deep into the world of GFCI testers and explain the intricate mechanisms behind their functions. So sit tight, as this one insight could save you from potential electrical hazards.

How They Work

GFCI testers are designed to detect ground faults in an electrical circuit, ensuring that your electrical system is safe and functioning correctly. They work by measuring the difference in current between the hot and neutral wires , and if an imbalance is detected, the GFCI tester will trip the GFCI device, cutting off power to the circuit. It’s a process that involves just a few simple steps, but is crucial in avoiding dangerous situations.

In my experience , a common scenario where GFCI testers prove their worth is when using them to check for issues with outlets in your home. Using the GFCI tester’s test button, the device simulates a ground fault by diverting a small amount of current to the ground wire. If the GFCI device is functioning properly, it will detect this imbalance and trip the breaker, deeming it safe and effective 1 .

However, if the GFCI tester does not trip the breaker during this test, it could be indicative of a problem. In some cases, the cause of the GFCI not tripping could be related to a ground fault in the circuit, issues in the wiring, or even a faulty GFCI device itself 2 . If this is the case, it is essential to call in a professional electrician to assess and address the issue, ensuring the safety of your electrical system.

In summary, GFCI testers play a vital role in maintaining a secure and reliable electrical system in your home or workspace. By understanding how they work and using them appropriately, you can avoid potential hazards and keep your space safe.

GFCI Outlets and Breakers

Ever wondered about the differences between GFCI outlets and GFCI circuit breakers? You’re in the right place. In this section, we’ll provide a helpful comparison to guide you through their unique features and functions. So, let’s dive in!

Comparison of GFCI Outlets and GFCI Circuit Breakers

A GFCI outlet and a GFCI circuit breaker both serve the important purpose of protecting users from electrical shock. However, there are key differences between these two devices that are crucial to understand.

• Installation location : The main difference between these two devices lies in where you install them. GFCI outlets are installed in the electrical receptacle itself, replacing the conventional wall outlet. On the other hand, GFCI circuit breakers are installed in the breaker panel and protect the entire circuit along with the receptacle.
• Protection level : GFCI outlets protect the specific outlet and any outlets “downstream” from it in the circuit, while GFCI circuit breakers protect the entire circuit. This means that a single GFCI circuit breaker can offer protection for multiple outlets on one circuit.
• Testing and reset : GFCI outlets usually have a test and reset button on the front of the device, while GFCI circuit breakers have similar buttons on the breaker itself in the breaker panel. It’s essential to test these devices regularly to ensure they’re functioning correctly. In my experience, it’s a good idea to label the panel clearly, so everyone knows which breaker is a GFCI circuit breaker.
• Compatibility : It’s worth noting that while it is possible to use a GFCI outlet and a GFCI circuit breaker on the same circuit, it’s not recommended or required by the National Electrical Code (NEC). Combining both devices can lead to nuisance tripping due to the same protection being applied twice.
• Common applications : GFCI outlets are typically used in residential and commercial settings where protection is needed for specific locations like kitchens, bathrooms, or outdoor receptacles. GFCI circuit breakers are often used for larger areas or in situations where multiple outlets require protection along the same circuit.

In conclusion, GFCI outlets and circuit breakers each play a crucial role in electrical safety. Understanding the differences between these two devices can help you make an informed decision on which is the best option for your specific needs. Keep in mind the applications, compatibility, and protection level to choose the right device for your situation.

Remember to test your GFCI devices periodically to ensure they’re functioning correctly. A continuous red light on a GFCI outlet might indicate a problem that needs to be addressed. Stay safe, and make the most of your GFCI protection!

Causes of GFCI Breaker Tripping

You’re about to uncover the secrets behind GFCI breaker tripping. Discover the common culprits and learn how to prevent it from happening in your electrical system. Let’s dive into the world of ground fault circuit interrupters and explore the reasons for their occasional misbehavior.

Fault Conditions

One of the main causes for GFCI breakers tripping is fault conditions in the electrical system. A ground fault occurs when an unintended connection is made between the hot and ground wires or the neutral and ground wires. This can cause an imbalance in current flow, causing the GFCI to trip. In my experience , moisture or water ingress into the receptacle box is a common reason for this type of fault 1 .

To prevent fault conditions, ensure that your electrical equipment and wiring is properly installed and maintained to keep out moisture and water. Also, make sure there are no loose connections or damaged insulation that could result in a ground fault.

Short Circuits

Short circuits are another leading cause of GFCI breaker tripping. When a direct connection is made between the hot and neutral wires, a short circuit can occur 2 . This massive surge of current can be dangerous, as it generates heat and can lead to fires.

To avoid short circuits, inspect your wiring for damaged insulation, loose or frayed connections, and any signs of overheating. By catching these issues early, you can prevent the short circuits that lead to GFCI breaker tripping.

While GFCI breakers are designed to protect you and your electrical system, understanding these common causes of tripping can help you prevent issues and maintain a safe, reliable setup. Remember to regularly inspect your electrical system and address any concerns to keep your home or office running smoothly .

Testing GFCI Devices

So, you want to test your GFCI devices to ensure they’re working properly and keeping you safe? Good call! In this section, we’ll dive into the world of GFCI testing and learn how to properly check outlets and circuit breakers. Buckle up!

Using a GFCI Tester on Outlets

When it comes to GFCI outlets, a handy little tool called a GFCI tester can make all the difference in ensuring your safety. These testers plug directly into the receptacle and simulate a ground fault to determine if the GFCI is functioning correctly.

To use a GFCI tester, just plug it into the outlet, press the “Test” button, and observe the outcome. If the GFCI works as it should, the tester will trip the GFCI, cutting off the power to the outlet. If the GFCI doesn’t trip as it should, it’s a clear indication that there might be a problem with the device. A thorough inspection of the wiring or replacement of the faulty GFCI will help prevent electrical hazards within your home.

Testing GFCI Circuit Breakers

In addition to GFCI outlets, GFCI circuit breakers are a crucial part of safeguarding your electrical system. These breakers combine the functionalities of both a GFCI and a traditional circuit breaker to detect ground faults and protect against overcurrent events.

Testing a GFCI circuit breaker is relatively simple. First, locate the breaker in your electrical panel and press the “Test” button on the breaker itself. If operating correctly, the breaker will trip immediately, indicating that it is functioning as intended. Should the breaker fail to trip, there might be an underlying issue requiring further investigation by a qualified electrician.

In my experience, regular testing of both GFCI outlets and circuit breakers is essential in maintaining a safe electrical environment. By taking a proactive approach and utilizing the appropriate testing methods, you can rest assured that your GFCI devices are protecting you from electrical mishaps and keeping your household secure. So, go ahead and test those GFCI devices – your peace of mind is worth it.

Troubleshooting GFCI Issues

You’re dealing with a stubborn GFCI issue, and you feel like you’re running out of options. Don’t panic! We’re going to dive into common problems and offer some solutions. Let’s get your GFCI back on track – together!

Common Problems

Incorrect Wiring : GFCI breakers are sensitive to ensure your safety. Wrong connections between the hot, neutral, and ground wires can lead to unexpected tripping 1 . For example, pool lights tripping the GFCI are a common issue caused by improper wiring.

Ground Fault : If there’s a fault in the circuit, especially between the hot wire and a grounded object, it can cause the GFCI to trip. Unplugging all devices and inspecting the wiring for damage can help isolate the problem.

Leakage Current : In some cases, GFCI breakers might trip due to leakage current. This condition occurs when several devices with minor leakage add up, causing the GFCI protection mechanism to engage 2 .

Resolving Problems

Check Wiring Connections : Make sure the hot, neutral, and ground wires are properly connected. The hot and neutral connections should have proper contact, and the ground wire should be securely fastened.

Inspect for Damaged Wiring : Look for any signs of damaged or compromised wiring. If you suspect a ground fault issue, try unplugging each item on the circuit to pinpoint the source of the problem.

Test the GFCI Breaker : If your GFCI breaker keeps tripping, use a GFCI tester to ensure it’s functioning correctly. If it trips even when there’s no fault present, you may need to replace the GFCI unit .

Keep it simple: in my experience, troubleshooting GFCI issues is often a matter of carefully inspecting the wiring and connections. With patience and thoroughness, you’ll have things sorted out in no time!

GFCI Protection in Different Areas

You’re only a few steps away from understanding GFCI protection! Brace yourself for some electrifying information that’ll prepare you for virtually any situation. Let’s dive into areas where GFCI protection is crucial, and how it keeps you safe.

Ah, the kitchen – the heart of every home. Here’s the thing: with all those appliances, water sources, and electric outlets, the kitchen is a prime location for ground faults to occur. In my experience, GFCI protection is key to ensuring safety when using electrical devices near water. So, outlets near the sink, countertop, or dishwasher should all have GFCI protection.

• Pro tip: GFCI outlets are required to be installed within 6 feet of any water source.
• Remember : Test your GFCI outlets every month to ensure they’re functioning properly.

Let’s talk about GFCI protection in the bathroom. After all, water, electricity, and bare skin make for a potentially dangerous mix. According to the National Electrical Code , GFCI protection is mandatory for bathroom outlets. Trust me, it’s for your own good.

Here’s a quick breakdown of some bathroom essentials with GFCI protection:

• Bathrooms with whirlpool tubs or power showers
• Outlets near sinks or vanity tops
• Electric towel rails or heated towel racks

Outdoor Areas

Think you’re off the hook outside? Think again! Outdoor electrical outlets also need GFCI protection . After all, Mother Nature is full of unpredictable events, like rain, that could lead to ground faults.

Bonus insight: Outdoor GFCI protection is not just about outlets, but also other electrical installations, such as:

• Lighting fixtures
• Electric lawn mowers or power tools
• Hot tubs, pools, or fountains

The takeaway? Whether you’re in the kitchen, bathroom, or venturing outside, GFCI protection is your guardian against electrical hazards. So go ahead and enjoy that slice of safety pie – you deserve it.

Installation and Maintenance

Will a GFCI tester trip a breaker? It can! But, let’s not allow that to shock us. In this section, we’ll explore the essential aspects of installing and maintaining GFCI devices and how to keep your electrical system running smoothly. Get ready to amp up your knowledge!

Proper Wiring of GFCI Devices

In my experience , proper wiring is the backbone of any GFCI device installation. First things first, make sure you turn off the power at the circuit breaker. Safety first, right?

Now, identify and connect the neutral wire (typically white) to the designated terminal on the GFCI outlet. Next, connect the ground wire (usually green or bare copper) to the corresponding terminal.

But hold your horses, we’re not done yet! You’ll need to connect the hot wire (often black or red) to the appropriate terminal as well. Finally, secure the GFCI outlet into the device box, and don’t forget to screw on the faceplate.

Remember, double-check your connections before restoring the power. It’s always better to be safe than sorry!

Labeling and Switches

No one wants to play the guessing game when it comes to electrical systems. This is where labeling comes into the picture – with the purpose to keep track of your GFCI layout and streamline maintenance.

To start, go ahead and label each GFCI device and breaker with its corresponding location, like “kitchen counter” or “bathroom outlet.” Trust me when I say, your future self will thank you for clear labeling.

As for switches, GFCI devices often have built-in test and reset buttons. Make a habit of testing your GFCI devices monthly to ensure they’re working correctly. Simply press the ‘test’ button – if the device trips, it’s working properly. Reset the device and you’re good to go.

Now that you’ve got the lowdown on installation and maintenance, it’s time to tackle those GFCI devices with confidence. Just follow this guide, and you’ll be wired for success in no time!

Safety Considerations

You might be endangering yourself and your home without even knowing it. GFCI testers can reveal potential dangers lurking in your electrical systems. So, let’s dive into the world of safety considerations and ensure you’re fully aware of what’s at stake.

Importance of GFCI Protection

GFCI stands for Ground Fault Circuit Interrupter, and these are critical safety devices in any modern electrical system. Generally found in breaker or outlet form , GFCIs monitor the amount of energy flowing from a power source, protecting users from serious electric shocks and fire hazards. In my experience, these lifesavers truly make a difference.

Common GFCI applications :

• Outdoor receptacles
• Unfinished basements

Keep in mind that using a GFCI tester might trip a breaker , which could indicate either an issue with the system or the device working as intended. This is where your trusty electrician comes in handy.

When to Call an Electrician

Sure, you’re a DIY enthusiast, but there comes a time when calling in a professional is essential. Electrical systems can be incredibly complex, and making a mistake could lead to a dangerous situation . Here are some key signs that you should pick up the phone and get a qualified electrician on the line:

• Repeated breaker trips: If your GFCI tester trips the breaker multiple times, it may signal an issue with the wiring or the GFCI itself.
• Mismatched electrical equipment: If you’re not sure if your appliances, AFCI, and circuit breaker are compatible, it’s best to consult an expert.
• High resistance or strange readings: Unusual readings from your GFCI tester or high resistance in conductors warrant professional attention.

And remember – safety should always come first. Don’t hesitate to call an electrician if you’re unsure or worried about anything in your electrical system. You’ll sleep better knowing your home is safe and secure.

GFCI and NEC Requirements

You might be wondering how GFCI testers and breakers fit into the world of electrical safety. In this section, we’ll explore the relationship between Ground Fault Circuit Interrupters (GFCI) and the National Electrical Code (NEC) requirements . As an experienced electrician, I can assure you that understanding these guidelines is crucial for maintaining a safe and compliant electrical system. So, let’s dive in and learn about the NEC and its influence on GFCI protection.

National Electrical Code Compliance

The National Electrical Code (NEC) is a set of standards for electrical installation and safety in the United States. One of the main aspects it covers is the requirement for GFCI protection in various situations. Incorporating these measures can prevent electrical shocks and fires, ensuring a safe environment for everyone.

GFCI requirements in specific locations

According to the NEC, GFCI protection is needed for any outlet up to 30 amps and 125-volt within 6 feet of the jet tubs. This includes areas like bathrooms, kitchens, garages, and outdoor locations. In my experience, complying with these regulations can be a lifesaver, especially when dealing with wet environments or appliances that can easily cause ground faults.

GFCI testers and breakers

GFCI testers are essential tools for verifying that a circuit is correctly protected by a GFCI. If a GFCI tester trips a circuit breaker , it means the GFCI is functioning correctly, as it’s designed to detect differences in the current between the hot and neutral wires. Remember, GFCI protection is all about keeping you safe, and NEC compliance ensures that you’re meeting the highest standards of electrical safety.

Staying up to date with NEC revisions

It’s crucial to stay informed about the latest NEC revisions since the electrical industry is continually evolving. Remaining knowledgeable about GFCI protection and the related NEC requirements will allow you to maintain a safe, compliant electrical system.

To sum up, understanding the NEC requirements for GFCI protection and using GFCI testers to ensure your breakers are functioning correctly are vital steps in preserving electrical safety. From a seasoned electrician’s perspective, keeping up with the latest updates to the NEC and GFCI technology can make all the difference when it comes to protecting your home or business from electrical hazards.

Frequently Asked Questions

You might be wondering how GFCI testers work and if they can cause any issues with your electrical system. In this section, we’ll answer some of the most common questions related to GFCI testers and their usage. Let’s dive in and clear up any confusion you might have.

Can a GFCI tester work on a regular outlet?

Yes, a GFCI tester can work on a regular outlet. However, when using a GFCI tester on a non-GFCI outlet, it will not trip the GFCI, as it doesn’t exist in that case 1 . The outcome may vary depending on the presence of an upstream GFCI or proper grounding.

How does a GFCI tester differ from an outlet tester?

A GFCI tester is designed specifically to test Ground Fault Circuit Interrupter (GFCI) outlets, while an outlet tester checks the wiring of standard outlets. GFCI testers work by inducing a small ground fault to determine if the GFCI protection is functioning correctly.

Will a GFCI outlet tester trigger a GFCI breaker?

Yes, a GFCI outlet tester should be able to trip a GFCI breaker, as long as the receptacle is grounded 2 . The tester induces a ground fault, which triggers the GFCI breaker and stops the flow of electricity, ensuring the safety mechanism is working as intended.

What is the outcome of using a GFCI tester on a non-GFCI outlet?

Using a GFCI tester on a non-GFCI outlet usually does not result in any significant outcome 3 . The tester would not trip the GFCI, as it doesn’t exist on a standard outlet. The overcurrent protection device (circuit breaker) will not trip either, as the induced ground fault is not sufficient to trigger it.

Why wouldn’t a GFCI breaker trip when tested?

If a GFCI breaker doesn’t trip when tested, it may be due to improper wiring, malfunction of the GFCI protection, or the absence of a proper ground connection in the circuit. In my experience, it is essential to investigate and rectify any underlying issues to ensure the safety of your electrical system.

Does a GFCI tester affect an arc fault breaker?

GFCI testers are primarily designed to test GFCI outlets and breakers. While using a GFCI tester on an arc fault breaker circuit may not necessarily trigger the arc fault protection, it is essential to follow the manufacturer’s guidelines for safely testing and maintaining arc fault breakers.

Want to join others who are creating the most amazing home redesigns & renovations and get more tips, tricks and hacks on how to make your home the best it can be?

Join my brand new free private Facebook group,  Remodel Reality  to connect with other people like you to make your space the best!

• If a GFCI tester trips a circuit breaker is there a problem ↩ ↩ 2 ↩ 3 ↩ 4
• Should my receptacle tester be able to trip a GFCI breaker ↩ ↩ 2 ↩ 3 ↩ 4
• https://diy.stackexchange.com/questions/152982/what-happens-when-using-a-gfci-tester-on-a-non-gfci-outlet ↩

Trending Articles

Dive into more home improvement stories below. One of these trending articles might just be the right solution for your problem or inspire your next project's breakthrough.

What Color Siding Goes with Red Brick: Top 5+ Stunning Combinations to Transform Your Home

How Wide Are Sliding Glass Doors? Unveiling the Perfect Dimensions for Your Home

30+ Front Yard Landscaping Ideas with Rocks and Mulch (With Examples)

15 Alternatives to Sliding Glass Doors: Stylish and Functional Choices for Your Home

What is a Japanese Toilet? Unveiling the High-Tech Bathroom Revolution

How Much is a Japanese Toilet? What Makes Them Worth the Price?

Leave a Comment Cancel Reply

Your email address will not be published. Required fields are marked *

Save my name, email, and website in this browser for the next time I comment.

Home » circuit breaker » Shunt trip breaker

Shunt Trip Breaker: How It Works to Trip a Circuit Breaker.

While circuit breakers protect appliances from power surges , shunt trip breakers add more protection to our electrical system and equipment .

If you are looking to add additional protection to your home circuit, or even trip your breaker remotely from your comfort zone, why not shop for a shunt trip circuit breaker?

Table of Contents

What is a shunt trip breaker?

A shunt trip device is an optional accessory for breakers that allows you to trip a circuit breaker with a remote, or automatically trip the switch during electrical surge or short circuit .

Shunt trip breakers are mostly used in commercial and industrial applications to enhance safety and protection of electrical appliances.

Types of shunt trip breakers

There are two main types of shunt trip circuit breakers they include.

• Automatic shunt trip breakers: These breakers trip automatically when they detect an electrical fault such as an overcurrent or a fire alarm.
• Manual shunt trip breakers:  These breakers are tripped manually by pressing the remote button.

How the shunt trip circuit breakers work

A shunt trip breaker works like other circuit breakers . However, it comes with a solenoid coil which is connected to a separate control circuit. 

When the control circuit is energized due to electrical fault or overload, it creates a magnetic field around the solenoid coil, which pulls a plunger inward.

This plunger is connected to the tripping mechanism of the circuit breaker. So when it is pulled inward, it trips the breaker and cuts off the power source.

Alternatively, a shunt trip breaker can also work with a remote control so you can trip the breaker remotely when there are electrical hazards

Where are shunt trips required

Shunt trip circuit breakers are used in various applications such as

• Industrial machines to protect it from damages that may arise from electrical faults.
• Fire protection systems to automatically shut off electrical power in the event of a fire outbreak.
• in commercial buildings for additional protection against electrical damage.
• hospitals and healthcare facilities to protect hospital equipment from electrical damage.

Advantages of using a shunt trip breaker

There are several advantages to using a shunt trip devices, these include:

• Enhanced Safety: It provides an additional layer of safety by quickly tripping the main breaker in the event of a fault or overload, preventing potential damage to electrical equipment.
• Remote tripping capability: A shunt trip breaker usually comes with a remote control to enable you to turn off the breaker at any needed time.
• Protection of sensitive equipment: It can help protect sensitive electrical equipment from power surges caused by overload or faults, ensuring the durability of the equipment.

Shunt trip breaker wiring

Before you wire a shunt trip, there are some things you will need to know.

Shunt trip is an accessory and is not compatible with all breakers. Some breakers come with an in-built shunt trip, others require specific models, or to be installed in the factory. Therefore, it is necessary that you evaluate all these before the wiring .

If the breaker is compatible with the shunt trip device, you can then follow this wiring diagram to install it.

Based on the MCCB shunt trip breaker wiring diagram above, the 3-phase 4-wire system from supply is connected to the mccb breaker .

The neutral wire is connected to the shunt coil, and the control line wires to the EPO button. 

Difference between a shunt breaker and a GFCI 

A shunt trip and a ground fault circuit interrupters (GFCI ) are both electrical devices , however, they are designed to work in different ways and for different purposes.

Below are their major differences.

When to call an electrician

If you have any issues with your electrical system, or went us to help you with a quotation or any wiring advice, contact us as we are here for you.

About mariaelectricals

Hi, I am Emmanuel Nwankwo, a commercial electrician and the founder of mariaelectricals.com . I established this blog to share my decades of work experience in electrical installations and repairs.

• Circuit breakers

GE Shunt Trip Manual

• page of 4 Go / 4

Advertisement

Quick Links

Related manuals for ge shunt trip.

Summary of Contents for GE Shunt Trip

• Page 1 Lockout The catalog numbers for various voltage applications accessories, shown in Figures 1 and 2, can be installed are listed in Table 1 for the Shunt Trip and in Table 2 in 800-4000 ampere frame Power Break® II circuit for the Shunt Trip with Lockout.
• Page 2 Bell Alarm-Alarm Only or Bell A l a r m with Lockout accessories when a shunt trip occurs, The Shunt Trip accessory is installed in the accessory with the procedure described in the Accessory compartment through the front of the circuit breaker Configuration section.
• Page 3 Apply at least 55% of the rated ac voltage at least Lockout also change state. (The factory switch 75% of the rated de voltage to the Shunt Trip; the setting is disabled.) breaker should trip immediately. When an Undervoltage Release accessory causes...
• Page 4 Check that the accessory is Shunt Trip. completely inserted; reinsert if necessary. If a 1 2 Vdc Shunt Trip is installed, check that the polarity of the control power matches that shown on the label of the Shunt Trip accessory.

This manual is also suitable for:

Rename the bookmark, delete bookmark, delete from my manuals, upload manual.

Please leave this field empty.

• All Products
• Cutler Hammer
• General Electric
• Commercial Circuit Breaker
• Residential
• Circuit Breaker Lugs
• Circuit Breaker Terminals
• Circuit Breaker Box
• Filler Plates
• Auxiliary Switches

Shunt Trip Electrical Breaker

18 November, 2022

When it comes to quality shunt trip breakers, Electrical Supply Distribution stands out from the rest. With over ten years in the electrical industry, they are known to be a trustworthy option, offering great pricing on a huge inventory that contains the highest quality products.

Shunt Trip Breaker

A shunt trip breaker is an optional accessory for one’s circuit breaker that allows individuals to trip the breaker remotely at any time or automatically during a surge, which prevents injuries and equipment damage during emergencies.

They are used in industrial, commercial, and residential environments. When it comes to a residential space, one can use a shunt trip breaker within their home to create an additional way to shut off their house’s electrical current during an emergency.

Shunt Trip Breaker Types

There are two main types of shunt trip breakers, known as automatic and manual.

Manual switches allow one to turn off the breaker outside the building using a remote button, while automatic shunt breaker switches to shut off the power as soon as they detect a surge from an external power source.

Where Are Shunt Trip Breakers Used?

In essence, a shunt breaker is a way to cut off electrical power through other sensors and not only through thermal activation. It is seen as an optional accessory for a circuit breaker, meaning that it is not required for a home electrical system, but it is highly recommended for added safety. 

For those working with industrial machinery, the need for a shunt breaker is even more important, and it can be used as a manual emergency switch to shut down the main breaker.

Environments where electrical shunts are required can be seen as most commercial kitchens, elevators, offices, and businesses that use industrial machinery or expensive electrical systems that could experience damage during a power surge.

How Does A Shunt Trip Breaker Work?

When electrical currents travel through a circuit breaker surge too high, the extra power surge charges an electromagnet beneath the main breaker switch, tripping the switch and cutting power. A shunt trip breaker provides an additional method to charge the electromagnet and trip the switch. These additional methods include a remote or automatic power shut-off. 

Some shunt trips may connect to an external power source, meaning that anytime a power surge reaches this source, a signal travels from the shunt trip to the breaker, which mechanically cuts the power off.

A shunt trip can also connect to a remote switch outside a building. Pressing a button on this switch sends an electrical surge through the shunt trip wiring, causing the power to shut off. 

Shunt Trip Breaker Brands

When visiting Electrical Supply Distribution for a shunt trip breaker, one will find the following:

• Cutler Hammer/Eaton BR220ST
• 120/240 Volt AT 10K AIC Plug-on

Shunt Trip Breakers From ESD

Shunt trip breakers provide additional safety within any environment, therefore, making them a truly valuable one’s electrical space. 

Call us today at Electrical Supply Distribution LLC for a free quote, or contact us via our convenient online form, where our team can answer all your questions regarding our shunt trips and what makes them stand out from the rest.

Share This Post

Related blog posts.

Best Circuit Breaker Brands You Need to Know

How Does a GFCI Protect You: Ultimate Guide

What Does GFCI Do: Things You Should Know

Tell Us About Your Project

First Name *

Last Name *

Please leave this field empty. Please leave this field empty.

Phone Number *

Description

Send Us The Picture Of Your Project

Wire A Shunt Trip Breaker: Your Step-by-step Visual Guide

In the world of electrical engineering , dances with complex equipment are common. Few dances are as intricate as the one with the shunt trip breaker. As seasoned professionals, we guide you through this delicate ballet, ensuring your safety and the seamless operation of your electrical system.

Our comprehensive visual guide will demystify shunt trip breaker wiring, breaking down the process into manageable steps. By the end of this journey, you’ll possess the knowledge and skills to wire a shunt trip breaker with confidence.

First, let’s explore what a shunt trip breaker is and why it’s a crucial component in an electrical system.

Key Takeaways

• Shunt trip breakers are crucial in industrial settings and high-risk areas to prevent electrical fires and other hazards.
• The wiring diagram of a shunt trip breaker allows it to receive a signal from a separate source for immediate shutdown.
• The key parts of a shunt trip breaker include the coil, breaker mechanism, and trip unit, which work together to cut off power in case of overloads or faults.
• Proper installation and regular maintenance of shunt trip breakers are essential for ensuring system safety and efficiency.

Understanding the Importance and Functionality of Shunt Trip Circuit Breakers

Diving into the heart of our discussion, it’s crucial to understand just what a Shunt Trip Circuit Breaker is. This innovative device shuts off an electrical circuit when it detects a problem, such as an overload or short circuit . This proactive functionality greatly reduces the risk of electrical fires and other potential hazards.

Its unique design allows the breaker to receive a signal from a separate source that triggers an immediate shutdown when necessary. This feature is particularly beneficial in environments where immediate circuit disconnection is paramount, like in industrial settings or high-risk areas.

Precision is key when installing a shunt trip breaker. A wrongly connected wire can compromise the breaker’s functionality, possibly leading to a dangerous situation. So, we strongly recommend professional installation to ensure the safety and efficiency of your electrical system.

Learning the Basics: Diagrammatic Representation of a Shunt Trip Breaker

To grasp the workings of a shunt trip breaker, let’s delve into its diagrammatic representation. A shunt trip breaker is comprised of key parts like the coil, the breaker mechanism, and the trip unit. These parts work together to safely distribute electricity and prevent dangerous overloads.

The current first enters through the coil. When an electrical fault is detected, the coil becomes energized, triggering the trip unit. This in turn activates the breaker mechanism, causing the breaker to trip and cut off the power. It’s a simple and efficient system and serves as an innovative solution for electrical safety.

Detailed Steps to Wire a Shunt Trip Breaker Safely and Efficiently

Ready to wire a shunt trip breaker ? Start by preparing your workspace. Clear the area of any debris and make sure you have good lighting . Assemble your tools, which include a screwdriver, wire stripper, and multimeter.

Once your workspace is ready, follow the step-by-step process. Start by turning off the main power supply. After that, connect the shunt trip breaker to the circuit. Be sure to connect the wires correctly: the black wire to the breaker terminal, the white neutral wire to the neutral bus bar, and the green or bare ground wire to the ground bus bar.

Avoid common pitfalls like loose connections and incorrect wiring. Always double-check your work to ensure everything is wired correctly.

Connecting the Shunt Trip: An Essential Accessory for System Safety

A functioning shunt trip breaker represents an innovative approach to electrical safety. It automatically cuts power in the event of an electrical anomaly, shielding your system from damage. Hence, the importance of connecting the shunt trip can’t be overstated.

To wire a shunt trip breaker, we must employ a methodical approach. Connect the shunt trip coil to the breaker’s auxiliary terminal. Secure the connection using the recommended fasteners. Always test the shunt trip breaker to ensure it operates correctly and inspect the connection regularly for ongoing safety.

Troubleshooting Tips: Ensuring a Reliable Shunt Trip Breaker Connection

Even with careful installation, occasional challenges may arise in the wiring of a shunt trip breaker. To empower you further, let’s delve into troubleshooting tips for maintaining a reliable connection.

• Faulty Connections : If the shunt trip breaker isn’t functioning as expected, inspect the connections thoroughly. Ensure they are tight and secure. Reconnect any loose wires and tighten screws appropriately.
• Testing Procedures : Regularly test the shunt trip breaker using the recommended testing procedures. If the breaker fails to trip during a test, reassess the wiring and consult the manufacturer’s guidelines for troubleshooting.
• Voltage Issues : Check the voltage supply to the shunt trip breaker. Ensure it aligns with the specified requirements. Any discrepancies may affect the breaker’s performance. Consult a professional if voltage-related concerns persist .
• Visual Inspection : Periodically inspect the breaker for signs of wear, damage, or overheating. Replace any damaged components promptly. Visual cues can provide early warnings of potential issues.
• Interference and Environmental Factors : Assess the surrounding environment for potential interferences, such as electromagnetic interference or extreme temperatures. Shield the breaker from external factors that could compromise its functionality.

By familiarizing yourself with these troubleshooting techniques, you can address issues promptly, ensuring a reliable and efficient shunt trip breaker connection. Remember, a well-maintained breaker contributes significantly to the overall safety and reliability of your electrical system.

Are the Wiring Steps for a Shunt Trip Breaker Similar to a Water Well Pressure Switch?

No, the wiring steps for a shunt trip breaker are not similar to a water well pressure switch. While both involve wiring, the purpose and functionality of each are different. In the case of a shunt trip breaker, the wiring process will be specific to its functionality and requirements, and would not be interchangeable with water well pressure switch wiring .

In wrapping up, we’ve guided you through the crucial steps of wiring a shunt trip breaker. We trust you now understand its importance and how it operates.

With safety as our primary concern, we’ve shown you the right way to connect the shunt trip. Remember, knowledge is power, and this guide arms you with the needed expertise.

Keep exploring our guides for more practical electrical tutorials. Your safety and satisfaction are our top priorities.

Frequently Asked Questions

What is a shunt trip breaker.

A shunt trip breaker is a type of circuit breaker that can be triggered remotely to trip the breaker. It is frequently used in commercial kitchens, elevators, and other applications where the breaker needs to be tripped manually or remotely in case of an emergency.

Can you explain the shunt trip breaker wiring diagram?

The shunt trip breaker wiring diagram shows the connections for the shunt trip terminals, control circuit, and external power source. It also illustrates how the breaker is typically wired to trip the circuit breaker remotely or automatically during a surge or in case of an emergency such as a smoke alarm.

What is the purpose of a shunt trip breaker?

The main purpose of a shunt trip breaker is to provide circuit protection and to trip the breaker remotely or automatically during a surge, alarm, or emergency situation. It can help minimize equipment damage and ensure the safety of the electrical system.

How does a shunt trip breaker work?

A shunt trip breaker works by using an electromagnet to trip the breaker when it receives a signal from the control circuit. This can be done manually, through a relay, or remotely depending on the particular shunt trip accessories and model of the breaker.

What are the components of a shunt trip breaker?

A shunt trip breaker includes the main circuit breaker, shunt trip terminals, external power source, control system, and the shunt trip accessories. These components work together to trip the breaker manually or remotely in case of an emergency.

Similar Posts

Solar Panels Perth WA: Enhance Your Energy Solutions

In Perth, Western Australia, the adoption of solar panels is a smart move towards boosting energy solutions. These…

Why Does My Light Bulb Keep Flickering? Understanding the Causes and Solutions

Have you ever been in a room with a light bulb that just won’t stay lit? Or maybe…

What Size Drill Bit for 1 4 Tapcon: Construction Pro Insights

Selecting the right drill bit for a 1/4 Tapcon is as critical as choosing the right key for…

How to Safely Remove Glass from Outdoor Light Fixtures and Replace the Shade

Hey there, fellow electricians! If you’re here, then you’re likely looking for ways to remove glass from a…

Led Light Blinking Circuit: Building a Blinking LED Circuit

Did you know that LED blinking circuits are one of the most popular beginner electronics projects, with a…

5 Best LED Can Lights: Top Recessed Lighting For Your Space

Illuminate your space with the 5 best LED can lights! Discover our list of top recessed lighting options…

• Semiconductors
• $2 for 1-8 layer PCBs

What Is A Shunt Trip Breaker & How Does It Work? 2023 Detailed Guide

Hello readers welcome to the new post. In this post, we will learn What Is A Shunt Trip Breaker & How Does It Work. 2023 Detailed Guide. There is electrical system safety is the main parameter for the power system/ The main element hat ensures the safety of electrical installation is the shunt trip breaker.  In this post, we will discuss the all details shunt trip breaker and other parameters. So let’s get started What is a shunt trip

Table of Contents

What is a Shunt Trip Breaker?

The shunt trip breaker is the replacement of circuit breakers which helps to trip breaker from some distance automatically when the urge comes and prevent any harmful effect or damage of any fault. There are two main types of shunt trip breakers first one is automatic and the second is manual

• Automatic shunt trip breakers come with a sensor that helps the detection of faults such as overvoltage and overcurrent and its signal is given to the shunt trip breaker that trips the circuit
• Manual shunt trip breakers are connected with a remote switch for tripping the breaker at some distance. it is beneficial to shut off the power supply at a distance such as a fire alarm and security system

Shunt trip breakers work with the use of small currents from shunt trip terminals. The field created by the current trips the breaker.

 How Does a Shunt Trip Breaker Work?

A shunt trip breaker is tripped from some distance with the use of tripped to its shunt coil. it automatically trips the breaker in case of any fault like an overload. The shunt breaker works with the use of a solenoid to mechanically trip the breaker.  it has a coil that energizes and creates a magnetic field. Fields make attraction with plungers and trip breakers that open the contacts and restrict the current flow.

Shunt trip breakers are preferred for distance breaker trips. such as those used in industrial locations where high chances of fire. They also used in buildings to off the power supply at distant locations

 Components of  Shunt Trip Breaker

Read more  Top Reasons Why Electric Outlet Stopped Working Breaker Not Tripped?

A shunt trip breaker comes with differnt components:

 Main Contacts

This part of the shunt trip breaker is employed for carrying and interruption of current flow. Their main function s to control  high current  and make reliable connections

 Shunt Coil

The shunt coil is an electromagnet that gets an electrical signal for breaker tripping. It produces a magentic field when gets energized releases the latch and starts the tripping process

 Trip Mechanism

it helps to disconnect the mechanical circuit when the breaker trips. it has a latch that helps contact during normal working but releases due to trip signal.

Control Wiring

The control wiring triggers the device remotely or control panels.  It works for remote activation of the shunt trip to provide the protection layers

 Installation and Wiring of a Shunt Trip Breaker

To install a shunt trip breaker, follow these instructions.

• First of all, off the power supply
• Select the accurate location for the shunt trip breaker in the panel
• Connect the breaker  with panel bus bars and make its connections accurately
• Connect control wiring from the shunt trip breaker with the remote triggering device
• Make  grounding and electric connection of different points
• Finally, ON the main power supply and test the shunt trip breaker to have the accurate function

 Applications of Shunt Trip Breakers

• Commercial buildings
• Hospitals and healthcare facilities
• Data centers
• Industrial facilities
• Laboratories
• Hotels and resorts

Benefits and Advantages of Shunt Trip Breakers

• it has protection for remote sources to disconnect power during any fault.
• its high-speed response time helps to avoid electrical hazard
• it can be easily integrated with older electrical systems.
• it also has compatibility with different devices used in circuitry like ground fault circuit interrupters and arc fault circuit interrupters

Maintenance and Troubleshooting of Shunt Trip Breakers

• Regular inspection of the breaker helps to find the symbols of damage or wear.
• Perform differnt electrical tests to check the it is working accurately or not
• Make sure there are no dust particles on the breaker so clean it regularly
• Make it properly lubricated
• After finding the fautls solve it

 Comparison with Other Circuit Protection Devices

Shunt trip breakers vs. standard circuit breakers, shunt trip breakers vs. ground fault circuit interrupters (gfcis), shunt trip breakers vs. arc fault circuit interrupters (afcis), tips for choosing the right shunt trip breaker.

• Choose according to the voltage rating of your circuit
• it has compatibility with  electrical panels and other protection devices used in circuitry

Shunt trip breaker wiring

Its wiring is very simple and easy. The shunt coil has two terminals one used for voltage supply and the other for neutral. The supply is about 120 volts AC and the neutral is connected to the neutral point of the breaker

The shunt coil is attached in a series combination with the push button. When we press the button it closes teh circuit to the shunt coil that trips the breaker. It is good to check that the shunt coil is rated for a similar voltage to the breaker.  If the shunt coil does not have the same rating it can be damaged

Diagram of Shunt Trip Breaker Wiring Diagram

Why Are Shunt Trip Breakers Important?

•  safety: Shunt trip breakers are helpful for minimizing the effect of electric fires and damage with the use of automatic trip of the breaker. it is best for avoiding the risk of fire or damaging
• Remote control: These breakers trip circuits from distant points, so not accessible points can be controlled through this device
• Flexibility: it is used in commercial, industrial,  and residential settings.

Where Do People Most Often Use Shunt Trip Breakers? :

• Industries: in industries, there is a high chance of fire so it is used there. They can be used for a tripping breaker if there are overloading conditions
• Commercial buildings: it is used in buildings to power off at some points where faults exist. Like, they used to off the power to a fire alarm or data center
• Residential applications: it is also used in homes  to trip breakers if there is a power surge or fire alarm triggered

Read more  How Many Outlets on a 15 Amp Circuit Breaker?

How Many Outlets on a 15 Amp Circuit Breaker?

60 Amp Wire Size – Which AWG is Best for 60 Amp Breaker

How does a shunt trip breaker work?

A shunt trip breaker controlled by a small current from some distance. It is best for uses where it has the ability to off  power to circuitry from distant points, like fire alarm systems

How is a shunt trip breaker wiring?

The shunt trip terminals are connected to the top and lower parts of the circuitry breaker. Small-size wire is used for wiring the shunt trip breaker between the shunt trip points and the remote source of supply. The power source can be battery relays

What is the purpose of a shunt with a relay?

The shut relay provided the remote tripping for the breaker. The shunt low resistance conductor is connected between the circuit breaker and relay. When current passes through the shunt, it makes a magentic field that functions as the relay. The relay close contacts that trip the breaker.

What is shunt trip and under voltage?

Shunt trip and under voltage are differnt terms used for the differnt tripping methods of the breaker.  Shunt trip use a shunt to have remote tripping. Under voltage is tripping off the circuit breaker when voltage loses less than a certain value

Where is shunt trip used?

• Fire alarm systems
•  Security system
• Power distribution
• Industrial control systems

What is the difference between shunt and resistance?

The main difference between a  resistor and a shunt is the temperature coefficient of thermal EMF . For resistors thermal EMF is not considered but for shunt resistors considered, based on temperature values two different conductive materials generate variable voltage

Is the shunt resistor AC or DC?

Shunt resistors can be used for both AC and DC circuits. Though the value of the shunt resistor will be different from ac and DC circuits

Why is it called a shunt resistor?

The term shunt originated from the Latin word “scindere”, which means to split.  A shunt resistor is used for spiting current in circuitry.

Why is low resistance called shunt?

When the resistor is connected with another resistor of low values then the equivalent resistance is lower than a single resistor that shunts the resistor.

What is another name for a shunt resistor?

it also called a shunt resistor is a current-dividing resistor.

What is unit of shunt resistance?

The unit of shunt resistance is ohm (Ω).

What is shunt resistance formula?

The shunt resistance formula is:

• Rs is the shunt resistance
• V is the voltage of the shunt resistor
• I is the current passing through the shunt resistor

Share this:

Wholesale PCBs SMT Stencil & PCBA Service Provider

Special offer:$2 for 1-8 layer PCBs 

Sign Up & Get 54$ Coupon

Author:  Scott Spencer

I am professional content writer have professional degree in engineering. I have worked in different famous companies and also providing technical and seo based services clients all over the world. With that i am sharing my knowledge to engineering and technical students and new learners to enhance their learning and get new ideas in technical fields. Follow him on Twitter and Facebook .

Related Posts

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Save my name, email, and website in this browser for the next time I comment.

Post comment

855-928-8500 | Mon-Fri: 9AM-5PM EST | FREE Shipping on orders over $49

• Schneider Square D
• Eaton Cutler-Hammer
• Siemens / ITE
• Crouse Hinds
• Allen-Bradley
• GFCI (Ground Fault)
• AFCI (Arc Fault)
• Surge Protectors
• Molded Case
• Overload Relays

• Circuit Breakers
• Motor Control

Confirm your age

Are you 18 years old or older?

Come back when you're older

Sorry, the content of this store can't be seen by a younger audience. Come back when you're older.

THQB2130ST1 - GE - 30 Amp Shunt Trip Circuit Breaker

Bolt-on - 30 amp - 2 pole - 240 volt.

Images are for reference only

• In stock and ready to ship
• Inventory on the way

Returns are easy

You may return items within 30 days of delivery for a refund.

View our return policy

FREE Shipping on orders over $49.

Simply Breakers offers one to five day delivery in the United States. The variation depends on the chosen shipping speed and the warehouse location for the product(s).

Same Day Shipping

We strive to ship out your items within one business day.

In rare circumstances, Simply Breakers may reserve up to 5 business days to complete shipment. Feel free to contact us if your order is time sensitive.

Simply Breakers provides a comprehensive 1-year warranty on both new and reconditioned products. Rest assured, all products are authentic OEM (original equipment manufacturer).

THQB2130ST1 - GE Molded Case Circuit Breaker

This General Electric (GE) THQB series double pole 30 ampere bolt-on molded case circuit breaker with shunt trip. It has a maximum voltage rating of 240V, trip type thermal magnetic common trip and standard interrupting rating of 10 kiloampere at 240V. It features an internal common trip with factory installed 120Vac shunt trip thermal magnetic (LI) Long-Time and Instantaneous trip functions and load side lug terminals.

Specifications:

• Trip Style: Non-Interchangeable
• Frame Type: Q-Line
• Amperage: 30 A
• System Voltage: 120 Vac, 120/240 Vac
• Trip Function: LI
• Continuous Current Rated: Standard
• 120 Vac Interrupting Rating: 10 KAIC
• 120/240 Vac Interrupting Rating: 10 KAIC
• Suitable for Reverse Feed: Yes
• Long Time: Fixed
• Instantaneous: Fixed
• Protective Relays: No
• Current Metering: No
• Special Markings: HACR
• GSA Compliance: No
• Authentic General Electric Product

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Customer Reviews

fast shipping...and the best price ..

Best price onthis breaker I could find online and much cheaper than I could find at my local supply house.

price beat the local hw stores in Alberta

Join our mailing list and recieve special offers.