Miniature Circuit Breaker Lockout Device - Tie Bar Lockout (TBLO) - 3 Pack

TRADESAFE Tie Bar Lockout miniature circuit breaker lockout devices help secure compatible MCB switches in the OFF position during maintenance, inspection, repair, and electrical servicing. This 3-pack uses a dedicated TBLO configuration that positions a metal clip beneath the breaker tie bar and between the poles, making it suitable for qualifying single- and multi-pole miniature circuit breakers.

Each device combines an impact-resistant, nonconductive thermoplastic nylon body with a stainless steel locking component and an integrated thumbscrew mechanism. The design accommodates compatible breaker tie bars up to 17/32" wide, uses a 1/4" metal clip, and provides a 9/32" padlock hole for securing the installed lockout with one compatible LOTO padlock.

Miniature Circuit Breaker Lockout for Tie Bar MCBs

This miniature circuit breaker lockout is designed specifically for compatible breakers that can accept a Tie Bar Lockout configuration. Unlike Pin In Standard or Pin Out Standard devices, the TBLO model secures around the breaker’s tie bar, with the metal clip positioned underneath the bar and between the poles before the thumbscrew is tightened.

Part number: TSMCB3. Similar industry part number: 90854

Product specifications include:

• Quantity: 3 miniature circuit breaker lockout devices
• Lockout configuration: Tie Bar Lockout (TBLO)
• Suitable for compatible single-pole miniature circuit breakers
• Suitable for compatible multi-pole miniature circuit breakers
• Maximum breaker tie bar width: 17/32"
• Metal clip width: 1/4"
• Body height: 1-3/4"
• Padlock hole diameter: 9/32"
• Impact-resistant thermoplastic nylon construction
• Nonconductive body
• Stainless steel locking component
• Red and black design
• One padlock position per device
• Weather-resistant construction
• Chemical-resistant materials
• Tamper-resistant design

Compatibility should be checked before ordering because MCB handle and tie bar designs vary between manufacturers and breaker models. Confirm that the device can be positioned beneath the tie bar, that the tie bar width does not exceed 17/32", and that sufficient clearance is available between the breaker poles.

MCB Lockout Device with Tool-Free Thumbscrew Installation

This MCB lockout device uses an integrated thumbwheel and thumbscrew mechanism to secure the lockout around a compatible breaker tie bar without requiring a screwdriver or other installation tool. After the breaker has been placed in the OFF position, the metal clip is positioned underneath the tie bar and between the poles, and the thumbwheel is rotated clockwise until the device is firmly seated.

Installation and design features include:

• Integrated thumbscrew mechanism
• Tool-free installation
• Tie Bar Lockout configuration
• 1/4" metal clip
• Compatible with tie bars up to 17/32" wide
• Impact-resistant nylon housing
• Nonconductive construction
• Stainless steel locking component
• 9/32" padlock hole
• One compatible LOTO padlock per device
• Compact format for miniature breaker panels

The thumbscrew configuration distinguishes this TBLO version from the push-button mechanisms used on other miniature breaker lockout designs. The 3-pack gives maintenance teams multiple identical devices for simultaneous breaker isolation or for distribution between electrical maintenance kits, service carts, and different work areas.

Miniature Circuit Breaker Lockouts for Electrical Maintenance

These miniature circuit breaker lockouts are intended for electricians, maintenance technicians, contractors, industrial facilities, and commercial workplaces servicing compatible MCB panels. Their tie bar configuration provides another isolation option for miniature breakers where a pin-style device is not the appropriate match for the breaker design.

Before applying the lockout, place the compatible breaker in the OFF position and verify the tie bar dimensions and available clearance. Position the metal clip below the tie bar and between the poles, tighten the thumbwheel clockwise until the device is firmly secured, and then attach the required personal LOTO padlock through the integrated lock hole.

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 3-pack for compatible miniature circuit breakers that require a Tie Bar Lockout configuration. Verify the 17/32" tie bar limit and breaker geometry before installation. Keep these compact TBLO devices available in electrical maintenance kits for recurring breaker isolation work.

OSHA-Compliant MCB Lockouts

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.

TRADESAFE products are made with the requirements for lockout tagout devices in mind. These are the requirements 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.