Circuit Breaker Lockout – Breaker Blocker Kit – 480/600 Volt

TRADESAFE breaker blocker system provides a practical circuit breaker lockout solution for compatible 480/600V breakers that are oversized, irregularly shaped, or otherwise difficult to secure with standard clamp-on devices. Instead of attaching directly to the breaker toggle, the system uses two fixed mounting rails and a removable blocking rod to restrict switch movement during electrical maintenance, servicing, inspection, and shutdown procedures.

The kit includes two yellow self-adhesive mounting rails, a red blocking rod for holding a compatible breaker in the off position, a green blocking rod for holding it in the on position, and a yellow blocking bar holder. Once the rails are correctly installed beside the breaker, the appropriate rod can be positioned through them and secured with LOTO padlocks, creating a reusable setup for recurring isolation work.

Circuit Breaker Lockout Kit for Oversized and Irregular Breakers

This circuit breaker lockout kit is designed for compatible breaker switches whose size or shape makes conventional clamp-on lockouts impractical. The rail-and-rod configuration creates a physical barrier around the breaker operating point rather than relying on a device that must clamp directly onto the toggle, making the system particularly useful for large or nonstandard breaker configurations.

Part number: TSBBK. Similar industry part number: 90891

The complete kit includes:

• 2 yellow mounting rails
  • Self-adhesive backing
  • Dimensions: 4" x 13/16" x 1-1/16"
• 1 green blocking rod
  • Holds a compatible switch in the on position
  • Dimensions: 7-5/8" x 5/16" x 1/4"
• 1 red blocking rod
  • Holds a compatible switch in the off position
  • Dimensions: 7-5/8" x 5/16" x 1/4"
• 1 yellow blocking bar holder
• Engineering-grade ABS construction
• Padlock hole diameter: 5/16"
• Supports up to 2 compatible LOTO padlocks
• Designed for compatible 480/600V breaker applications

Because breaker panels vary significantly in switch dimensions, spacing, and surrounding components, compatibility should be confirmed before installation. This breaker blocker configuration is intended for applications where sufficient surface area is available beside the switch for the two mounting rails and where the rod can be positioned to prevent the required breaker movement.

Circuit Breaker Lockout Tagout Kit with Permanent Mounting Rails

This circuit breaker lockout tagout kit uses two self-adhesive rails that can remain installed beside the compatible breaker after the initial setup. Keeping the rails in place simplifies recurring lockout procedures because authorized employees only need to select the appropriate blocking rod, position it through the mounted rails, and secure the assembly instead of reinstalling the entire system each time the breaker requires isolation.

Installation and operating features include:

• Self-adhesive mounting rails for fixed installation
• Tool-free rail and rod configuration
• Multiple rail openings for positioning flexibility
• Separate red and green blocking rods
• Red rod for blocking the breaker in the off position
• Green rod for blocking the breaker in the on position
• 5/16" padlock holes
• Capacity for up to 2 compatible safety padlocks
• Reusable blocking rods
• High-visibility yellow, red, and green components
• Compact components for storage near the electrical panel

The mounting surface should be clean and properly prepared before the adhesive rails are installed so they can remain correctly positioned during repeated use. Once installed, the system provides a repeatable method for securing compatible breakers without requiring a standard clamp-on device to fit directly around the switch.

Circuit Breaker Lockout for 480/600V Electrical Panels

This circuit breaker lockout system is suited to industrial facilities, commercial buildings, maintenance departments, electricians, and service teams working with compatible 480/600V breakers that require a more adaptable blocking method. Its modular design makes it particularly useful for breaker handles that are oversized, unusually shaped, or positioned in a way that prevents a conventional breaker lockout from fitting securely.

For each application, users should verify the breaker configuration, available mounting surface, rail spacing, and required switch position before installing the system. The red and green rods serve different blocking functions, while the two mounting rails create the fixed structure needed to restrict movement of the compatible breaker switch during the lockout procedure.

To ensure compatibility, check out our Breaker Lock Solution Guidelines to find the right TRADESAFE Breaker Lockout Device for your specific breaker model and number of poles.

Choose the TRADESAFE circuit breaker lockout kit when standard clamp-on devices do not match the size or geometry of a compatible breaker. Install the rails correctly, select the appropriate blocking rod, and secure the setup with the required LOTO padlocks. Keep the reusable components accessible for future electrical maintenance and isolation tasks.

OSHA-Compliant Circuit Breaker Blocker Kit

Compliance with the OSHA Standard for the Control of Hazardous Energy (Lockout/Tagout) (29 CFR 1910.147) is vital to the safety of every employee on site. That’s why we make sure that all of our products help workplaces remain OSHA-compliant.

Each TRADESAFE product meets all of the following requirements for lockout tagout devices, pursuant to OSHA Standard 1910.147:

• Durable: Devices must be able to withstand exposure to the environment in which they will be used for as long as necessary.
• Standardized: Devices used in a facility must be standardized according to color, shape, or size.
• Substantial: Devices must be difficult to remove without the use of excessive force or techniques that are not typically used to remove the devices. They should also be able to prevent accidental removal.
• Identifiable: Devices must be able to identify the employee who applied them.
• Exclusive for Safety: Devices must not be used for any purpose other than controlling energy.

TRADESAFE: A Trusted USA-Based Partner in Lockout Tagout

• TRADESAFE is a USA-based company well-versed in OSHA regulations
• People-centered supplier of safety products
• High-quality products made of heavy-duty and durable materials
• Constant innovation and continuous adaptation to new standards

TRADESAFE is your partner in safety and we always keep the seriousness of that role in mind. That’s why all of our lockout tagout products are industrial-grade and meet regulatory standards. They are all ideal for use in the lockout of electrical and many other energy applications.

We don’t want to just be your supplier. We want to be your partner. For this reason, we approach things differently. Each and every day our team works to improve our products and the services we provide to the great people and businesses that put so much faith in us.

TRADESAFE is a USA-based company. This helps us stay up to date on the latest OSHA safety standards. We are inspired by the American worker and we are honored to help keep you safe from harm and hazards.