Breaker Locks | McMaster-Carr

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Circuit Breaker Lockout Type

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EAR99

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145 Products

Lockouts

Clamp-On Circuit Breaker Lockouts

Lock circuit breaker switches, even if they don't have a through-hole

18 products

Circuit Breaker Lockouts

Lock out switches with a through-hole to prevent accidental start-ups

3 products

Tie-Bar DIN-Rail Mount Circuit Breaker Lockouts

Wrap around an entire tie bar on your DIN-rail-mount circuit breaker

1 product

Tie-Bar Circuit Breaker Lockouts

From a single point, lock out multiple breaker switches

2 products

Clamp-On DIN-Rail Mount Circuit Breaker Lockouts

Lock small switches on DIN-rail mounted breakers without a through-hole
Pins stick into holes in the housing on your DIN-rail-mount circuit breaker

2 products

Pin-In DIN-Rail Mount Circuit Breaker Lockouts

Pins slot into holes from the outside for a more secure hold than clamp-on lockouts

1 product

Circuit Breaker Lockout Bars

Physically block breaker switches from flipping until you remove the bar

5 products

Lockout Hasps

Lock out power sources to keep machinery off during repairs

12 products

Circuit Breaker Group Lockouts

Secure a single breaker with multiple padlocks until all work is complete

6 products

Electrical Panel Lockouts

Block access to the entire panel rather than locking individual breakers

5 products

Pin-Out DIN-Rail Mount Circuit Breaker Lockouts

Pins stick into holes in the housing on your DIN-rail-mount circuit breaker

2 products

Portable Group Lockout Boxes

Bring to a job site to store lockout keys while the team works

8 products

Choose-a-Color Lockout Hasps with Label

Identify different types of lockouts by color

1 product

Clamp-On Lockout Cables

Clamp to a surface nearby to pull the cable tight from a fixed point

1 product

Pull-Tight Lockout Cables

Manually tighten cables even after they're locked out

9 products

Nonconductive Lockout Hasps with Tag Holder

Made of plastic to prevent shocks, and include a holder for disposable tags

2 products

Pinch-Point Lockout Cables

Weave the cable through valves and controls before pinching shut

8 products

Wall-Mount Group Lockout Boxes

People must remove their padlocks from the box to access the lockout key

2 products

Dual-Jaw Lockout Hasps

Differently-sized jaws at each end lock spaces with various clearances

2 products

Lockout Hasps with Label

A Danger label alerts passersby that the energy control is locked out

2 products

Low-Profile Lockout Hasps with Label

Fit into tight spaces and include a label to record who set the lockout

1 product

Lockout Hasps with Chain

Attach to equipment with a chain so they won’t get lost

2 products

Self-Retracting Lockout Cables

Flexible cables retract for a tight fit around controls without any slack

2 products

Nonconductive Lockout Hasps

Made of plastic to prevent shocks from electrical equipment

6 products

Portable/Wall-Mount Group Lockout Boxes

Bring to a worksite and mount on the wall for safe storage

9 products

Pry-Resistant Lockout Hasps with Padlock Slot

A slot instead of holes makes it easy to install multiple padlocks

6 products

Pry-Resistant Lockout Hasps

Shut tight enough that picks and other tools can't pry them open

3 products

Low-Profile Lockout Hasps

Fit into tight spaces and still accommodate padlocks for each team member

2 products

Pry-Resistant Interlocking-Hasp Lockouts

The clasps interlock to protect against prying

4 products

Pry-Resistant Interlocking-Hasp Lockouts with Chain

Clasps prevent prying and a chain keeps the hasp close by when not in use

2 products

Lockout Sets

Electrical, Valve, and Air Hose Lockout Sets with Padlocks

Lock out nearly any power source or supply line in your facility

1 product

Electrical Lockout Sets with Padlocks

Include an assortment of padlocks, hasps, and other electrical lockouts on hand

3 products

Wall-Mount Electrical and Valve Lockout Sets with Padlocks

Everything you need to lock out most electrical equipment and valves

2 products

Electrical and Valve Lockout Sets with Padlocks

Everything you need to lock out your electrical equipment or valves

4 products

Lockout Chain Sets with Padlocks

An assortment of steel lockout chains, hasps, and more for hazardous spaces

1 product

Wall-Mount Lockout Sets with Padlocks

Everything you need to lock out most electrical equipment and valves
Mount group lockout items to a wall to keep them organized and within reach

6 products