Circuit Breaker Lockouts

Circuit Breaker Lockouts stop the accidental energizing of electrical circuits while maintenance or inspection is taking place. They clamp over the breaker switch to keep it locked in the off position until the work is complete and cleared.

These devices are required on any job that involves live electrical panels or distribution gear. They prevent unexpected startup, protect technicians from shock or arc flash, and ensure compliance with OSHA 1910.147 and ANSI Z244.1 energy control standards.

Built from non conductive and impact resistant materials, these lockouts hold strong in heat, cold, and high vibration environments. Whether you are working inside a manufacturing plant, a construction site, or an electrical room, they give a simple and reliable way to isolate energy at the source.

Built for real work

Each Circuit Breaker Lockout is designed for daily industrial use. The clamp grips firmly around the breaker handle without damaging the housing and stays tight even under vibration. They fit most major breaker types including single pole, double pole, and multi pole systems found in switchboards and control centers.

The materials are non conductive, lightweight, and bright for visibility. The red body provides a clear warning from any distance that the circuit is locked out. A built in tag hole allows the use of standard lockout tags to identify the person responsible for the isolation.

These devices save time by installing in seconds and holding securely through long maintenance procedures. Crews can quickly isolate individual circuits instead of locking out entire panels, reducing downtime and improving workflow.

Types of circuit breaker lockouts

Standard breaker lockouts

Made for most common breaker handles used in commercial and industrial panels. They fit directly over the toggle and secure it in the off position with a safety padlock.

Miniature breaker lockouts

Built for compact breakers found in machine control panels, automation cabinets, and modular equipment. Their smaller footprint allows tight clearances without blocking adjacent switches.

Universal breaker lockouts

Adjustable designs that work across mixed panels and multiple manufacturers. A sliding or rotating arm adapts to different handle sizes and shapes. These are used by contractors and maintenance crews who service varied equipment.

Panel lockout devices

Used to cover and secure entire panel sections when several breakers must remain off during a shutdown or facility outage. Provide a clear visual and physical barrier over the panel cover.

Common applications

Circuit Breaker Lockouts are standard for electrical service and facility maintenance. Common uses include:

Motor control centers and pump starters during mechanical repair
Lighting and HVAC circuits during service or replacement
Panel retrofits and expansions during construction
Testing and troubleshooting of powered systems
Switchgear and subpanel isolation during shutdowns

By isolating power at the breaker, these devices remove risk at the earliest point in the system. They also simplify lockout verification because the isolation point is visible and accessible.

Built for safety and compliance

All Circuit Breaker Lockouts in this collection are manufactured for OSHA 1910.147 and ANSI Z244.1 compliance. Non conductive bodies prevent shock, and clamping designs provide mechanical strength without slipping.

Each unit accepts standard safety padlocks and tags. The lockout cannot be removed or reset until the authorized employee removes the padlock and clears the job. This provides documented control and proof of isolation during audits or incident investigations.

These devices integrate directly into larger lockout programs that include plug, valve, and mechanical isolation products. When used together, they help build a consistent and verifiable energy control system across your site.

Product details

FeatureSpecification
ComplianceOSHA 1910.147 and ANSI Z244.1 compliant
MaterialsReinforced nylon and non conductive polymer
Fit rangeFits most standard, miniature, and universal breakers
VisibilityBright red color with tag attachment point
ApplicationElectrical energy isolation at breaker panels
Temperature rangeRated from minus forty to one hundred eighty degrees Fahrenheit
Custom optionsEngraved identification, company colors, and labeling
IndustriesConstruction, utilities, manufacturing, maintenance contracting, and industrial services
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Frequently Asked Questions

How do Circuit Breaker Lockouts work?

The lockout clamps over the breaker handle to prevent it from moving to the on position. Once a safety padlock is installed, the breaker cannot be re-energized until the padlock is removed by the authorized worker. This provides both mechanical restraint and visual confirmation that the circuit is isolated.

What breaker types do these fit?

Standard models cover most single pole and double pole breakers in North American panels including Square D, Siemens, Eaton, and GE. Miniature models fit DIN rail and modular breakers used in control panels. Universal models have adjustable arms for irregular handle shapes or older breakers

Are these devices reusable?

Yes. They are made from high strength non conductive materials that can be used for years without deformation. Always inspect before reuse and replace any unit that shows cracks or wear.

Do they come with padlocks or tags?

Individual lockouts are sold alone. Padlocks and tags can be purchased separately or included with full Lockout Tagout Kits. Buying kits ensures you have the correct combination of locks, tags, and devices for complete compliance.

Can I use one lockout on multiple breakers at once?

No. Each breaker handle must have its own lockout device to maintain positive control. When multiple circuits must remain off, use a panel lockout or multiple devices in combinatio

What temperature and environment can they handle?

They perform in environments from minus forty to one hundred eighty degrees Fahrenheit. Materials resist UV, oils, and mild chemicals. They are safe for both indoor and outdoor electrical enclosures

Are these required for OSHA compliance?

Yes. OSHA 1910.147 requires physical lockout devices on all energy isolation points. A breaker lockout is the approved method for electrical circuits because it provides mechanical restraint, identification, and contro

How should I train employees to use these?

Workers must be trained on energy control procedures and the specific devices used. Training should include proper application, verification of isolation, and removal steps. We recommend including device use in your annual lockout tagout review.

About Safety Label Supply

Safety Label Supply manufactures and distributes safety equipment built for field use. Our products are made for the crews who work on energized systems, not for display shelves. Each lockout device is tested for strength, reliability, and visibility before release.

We supply contractors, maintenance departments, and utilities with the hardware they need to build safe and consistent energy control programs.

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