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Understanding the Inner Workings of the Shunt Trip Breaker by Bob Tusky

Shunt Trip breaker is an essential component that contributes to overall protection. This article aims to shed light on what a shunt breaker is, how it works, and when it is required. Additionally, we will explore the services provided by Bob Tusky, a reputable professional in the field of shunt trip breaker installation and maintenance.

When it comes to electrical installations, safety should always be a top priority. Whether in residential, commercial, or industrial settings, having the right safeguards in place is crucial to preventing electrical accidents and damage. One of the key elements of electrical safety is the shunt trip breaker.

Shunt Trip Breaker Service

What is a Shunt Trip Breaker?

A shunt trip breaker is a specific type of circuit breaker that incorporates an additional feature called a shunt trip coil. This coil allows for remote tripping of the circuit breaker, which means that the breaker can be opened or disconnected remotely in certain situations.

The main purpose of a shunt breaker is to provide an additional level of safety and control in electrical systems. By incorporating the shunt trip coil, the breaker can be triggered to open its contacts and interrupt the flow of electrical current. This feature is particularly useful in emergency situations or specific events where immediate power disconnection is required

How Does a Shunt Trip Breaker Work?

A shunt breaker works by utilizing the principles of electromagnetism to provide remote tripping and disconnection of power in electrical systems. Here’s how it works:

  • Shunt Trip Coil: A shunt breaker includes an additional coil called the shunt trip coil. This coil is connected in parallel with the main circuit of the breaker.
  • External Signal: When an external signal is received, such as from a fire alarm or manual switch, it triggers the shunt trip coil.
  • Magnetic Field Generation: The shunt trip coil, upon receiving the signal, generates a magnetic field around itself. This magnetic field is crucial for the operation of the shunt trip breaker.
  • Interaction with Mechanisms: The generated magnetic field interacts with the internal mechanisms of the circuit breaker. These mechanisms are responsible for controlling the contacts of the breaker.
  • Opening of Contacts: As the magnetic field interacts with the internal mechanisms, it causes the contacts of the circuit breaker to open. When the contacts open, they effectively interrupt the flow of electrical current and disconnect the power supply.
  • Remote Tripping: The ability to remotely trip the circuit breaker is the key feature of the shunt trip breaker. It allows for quick disconnection of power in emergency situations or specific events, enhancing the safety and control of the electrical system.

It’s important to note that the shunt breaker requires a power supply for the shunt trip coil to operate. This power supply is typically provided by the same electrical system to which the breaker is connected. When the external signal is received, it activates the shunt trip coil, which then initiates the opening of the breaker’s contacts, disconnecting the power.

When is a Shunt Trip Breaker Required?

The requirement for a shunt trip breaker depends on specific factors, including:

  • Building Codes and Regulations: Local building codes and regulations may stipulate the mandatory use of shunt breakers in certain applications or environments.
  • Safety Considerations: When there is a need for rapid power disconnection in critical situations, such as fire or electrical hazards, a shunt breaker becomes essential.
  • Specific Industry Requirements: Some industries, such as healthcare or data centers, have specific safety guidelines that necessitate the use of shunt breakers for added protection.

Factors to Consider When Installing a Shunt Breaker

When installing a shunt trip breaker, several factors should be taken into account, including:

  • Load Requirements: The electrical load and power demands of the system should be evaluated to determine the appropriate shunt trip breaker specifications.
  • Compatibility: The shunt trip breaker should be compatible with the existing electrical panel or switchgear to ensure seamless integration and optimal performance.
  • Installation Expertise: Due to the technical nature of shunt trip breaker installation, it is crucial to rely on experienced professionals who can ensure proper setup and configuration.

Benefits of Using a Shunt Trip Breaker

Bob Tusky’s shunt breaker service offers a range of benefits for your business, including:

  • Enhanced Safety: A shunt breaker can prevent electrical faults that can cause damage or fire. By installing a shunt breaker, you’re enhancing the safety of your building and protecting your assets.
  • Remote Triggering: Bob Tusky’s shunt breaker service provides remote triggering options, which can be crucial in emergency situations. You can easily disconnect the power supply from a distance, preventing further damage or fire.
  • Customized Solutions: Bob Tusky’s shunt breaker service offers customized solutions tailored to your business’s unique needs. They can help you choose the right type of shunt trip breaker and install it in the appropriate location.
  • Professional Installation: Installing a shunt breaker requires expertise and experience. Bob Tusky’s shunt breaker service has a team of professionals who can install the shunt breaker correctly and ensure its proper functioning.
  • Regular Maintenance: Bob Tusky’s shunt breaker service offers regular maintenance and inspection to ensure that your shunt breaker is functioning correctly. This can prevent unexpected failures and keep your building safe.

Common Applications of Shunt Trip Breakers

Shunt trip breakers find applications in various scenarios, such as:

  • Elevators: Shunt breakers are commonly used in elevator systems to ensure passenger safety. In the event of a fire or emergency, the breaker can be remotely tripped, cutting off power to the elevator.
  • Fire Protection Systems: Shunt breakers play a vital role in fire protection systems, allowing for the immediate shutdown of power to specific circuits when a fire alarm is activated.
  • Hazardous Environments: Industries dealing with hazardous materials or processes often rely on shunt trip breakers to quickly de-energize equipment or machinery in case of emergencies.

Importance of Professional Shunt Trip Breaker Services

The importance of professional shunt breaker services cannot be overstated when it comes to ensuring the optimal performance and safety of electrical systems. Here are some key reasons why relying on professionals for shunt breaker services is crucial:

  • Expertise and Knowledge: Professional service providers have the necessary expertise and knowledge in handling shunt breakers. They are well-versed in the technical aspects of installation, maintenance, and repair, ensuring that the work is done correctly and in compliance with safety standards. 
  • Safety Assurance: Shunt breakers play a critical role in electrical safety. Improper installation or maintenance can compromise their functionality, leading to potential hazards. Professional services ensure that the shunt breakers are properly installed, configured, and maintained, minimizing the risk of accidents or electrical failures. Bob Tusky’s whole house surge protection service, is also reliable for our home safety.
  • Compliance with Regulations: Electrical systems are subject to various regulations and codes that govern their installation and operation. Professional shunt trip breaker services ensure compliance with these regulations, providing peace of mind that the system meets the required standards.
  • Reliable Troubleshooting and Repairs: In the event of a malfunction or breakdown of a shunt trip breaker, professional service providers have the expertise to diagnose the issue accurately. They can efficiently troubleshoot the problem and perform necessary repairs, minimizing downtime and ensuring the system is back up and running smoothly.
  • Long-Term Cost Savings: While it may be tempting to attempt DIY installation or repairs, improper handling of shunt trip breakers can lead to costly damage or frequent breakdowns. Professional services not only ensure proper installation and maintenance but also help identify potential issues early on, preventing major breakdowns and expensive repairs in the long run.

Bob Tusky's Shunt Trip Breaker Service: A Reliable Option

When it comes to shunt trip breaker services, Bob Tusky stands out as a trusted professional in the field. With years of experience and a deep understanding of electrical systems, Bob Tusky offers comprehensive solutions for shunt trip breaker installation, maintenance, and repair. His expertise and commitment to safety make him a reliable choice for ensuring the proper functioning of shunt trip breakers in various applications. Bob Tusky also provide circuit breaker repair service.


In conclusion, shunt trip breakers play a vital role in electrical systems, providing a means for remote tripping and disconnection of power. Their ability to respond to external signals or control systems enhances the safety and control of electrical installations in various applications.

The shunt trip breaker’s functionality and reliability depend on proper installation, maintenance, and repair. Seeking professional shunt trip breaker services, such as those provided by experts like Bob Tusky, is essential to ensuring optimal performance and adherence to safety standards.

If you have any further questions or would like to inquire about our services, please feel free to contact us. We are here to assist you.


What is the purpose of a shunt trip breaker?

A shunt trip breaker serves the purpose of remotely tripping a circuit breaker, allowing for quick power disconnection in emergency situations or specific events.

Can I install a shunt trip breaker myself?

Due to the technical nature of shunt trip breaker installation, it is recommended to rely on professional electricians or service providers who have the necessary expertise for a proper installation.

How often should a shunt trip breaker be inspected?

Regular inspection and maintenance of shunt trip breakers are essential to ensure their proper functioning. The frequency of inspections can vary depending on factors such as usage, environmental conditions, and industry guidelines.

Are shunt trip breakers expensive?

The cost of a shunt trip breaker can vary depending on factors such as the brand, specifications, and the complexity of the installation. It is best to consult with professionals to get accurate cost estimates

Can a shunt trip breaker be retrofitted into an existing electrical system?

In many cases, shunt trip breakers can be retrofitted into existing electrical systems. However, it is essential to assess the compatibility and consult with professionals to ensure a successful retrofitting process.

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