Lockout Devices | McMaster-Carr

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1,829 Products

Lockouts

Clamp-On Circuit Breaker Lockouts

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

18 products

Electrical Plug Lockouts

Cover a machine's plug so no one can start it up during maintenance

7 products

Valve Handle Lockouts

Stop gas and fluid valve handles from opening or closing during maintenance

28 products

Hinged Lockouts for Valve Hand Wheels

A hinged design makes it easy to mount these lockouts

15 products

Circuit Breaker Lockouts

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

3 products

Pull-Tight Lockout Cables

Manually tighten cables even after they're locked out

9 products

Push-Button Safety Covers

Prevent workers from pressing on/off or emergency-stop buttons

10 products

Lockout Hasps

Lock out power sources to keep machinery off during repairs

12 products

Tie-Bar DIN-Rail Mount Circuit Breaker Lockouts

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

1 product

Wraparound Valve Handle Lockouts

Store the valve handle in the zippered pouch to prevent valve operation

1 product

Air Hose Lockouts

Block air hoses from connecting to compressed air so equipment can't start

5 products

Two-Piece Lockouts for Valve Hand Wheels

Cover valve hand wheels to prevent turning when repairing systems downstream

1 product

Portable Group Lockout Boxes

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

8 products

Lockout Bags

Cinch over large electrical connectors, spouts, and other odd-sized controls

4 products

Pry-Resistant Interlocking-Hasp Valve Lockout with Chain

Hasp interlocks to prevent prying and the chain keeps lockouts attached

1 product

Valve Stem Lockouts

Block valves that have a small handle or no handle to secure a lockout onto

5 products

Wall Switch Lockouts

Prevent workers from accidentally flipping toggle- or rocker-style switches

2 products

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

Electrical Socket Lockouts

Make sure no one inserts a plug into an IEC socket during maintenance

1 product

Nestable Lockouts for Valve Hand Wheels

Each lockout rotates into itself so you can install it in tight spaces

5 products

Clamp-On Lockout Cables

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

1 product

Battery Cable Connector Lockouts

Close over the ends of battery cables to keep machinery turned off

3 products

Plug-In Electrical Plug Lockouts

Slide onto a plug and lock with keys to block power sources

2 products

Pinch-Point Lockout Cables

Weave the cable through valves and controls before pinching shut

8 products

Universal Valve Lockouts

A single lockout fits valve handwheels and handles of different sizes

6 products

Nonconductive Lockout Hasps

Made of plastic to prevent shocks from electrical equipment

6 products

Pry-Resistant Lockout Hasps

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

3 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

Gas Cylinder Lockouts

Block access to the main valve on a gas cylinder

6 products

Pendant Switch Lockouts

Rigid sides prevent workers from pressing buttons on pendant switches

1 product

Pin-Out DIN-Rail Mount Circuit Breaker Lockouts

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

2 products

Circuit Breaker Lockout Bars

Physically block breaker switches from flipping until you remove the bar

5 products

Wall-Mount Group Lockout Boxes

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

2 products

Trailer Brake Lockouts

Clamp on an emergency air brake so you can't connect a trailer to a semi-truck

1 product

Electrical Panel Lockouts

Block access to the entire panel rather than locking individual breakers

5 products

Self-Retracting Lockout Cables

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

2 products

Pry-Resistant Lockout Hasps with Padlock Slot

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

6 products

Pry-Resistant Interlocking-Hasp Lockouts

The clasps interlock to protect against prying

4 products

Portable/Wall-Mount Group Lockout Boxes

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

9 products

Choose-a-Color Lockout Hasps with Label

Identify different types of lockouts by color

1 product

Dual-Jaw Lockout Hasps

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

2 products

Low-Profile Lockout Hasps with Label

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

1 product

Pipe Flange Lockouts

Prevent gas, steam, or chemicals from flowing through your line

3 products

Circuit Breaker Group Lockouts

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

6 products

Lockout Hasps with Label

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

2 products

Nonconductive Lockout Hasps with Tag Holder

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

2 products

Fuse Block Lockouts

Prevent anyone from inserting a fuse in a fuse block

3 products

Battery Disconnect Switch Lockouts

Wrap around levers to prevent them from moving up and down

2 products

Lockout Hasps with Chain

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

2 products

Low-Profile Lockout Hasps

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

2 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

Nestable Lockout Sets for Valve Hand Wheels

Include an assortment of lockouts that rotate inward for tight spaces

1 product

Valve Lockout Sets with Padlocks

Everything you need to safely lock out nearly every valve in your facility

1 product

Electrical Lockout Sets with Padlocks

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

3 products

Lockout Chain Sets with Padlocks

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

1 product

Forklift Lockout Sets with Padlock

Everything you need to lock out a forklift

1 product

Wall-Mount Electrical and Valve Lockout Sets with Padlocks

Everything you need to lock out most electrical equipment and valves

2 products

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

Electrical and Valve Lockout Sets with Padlocks

Everything you need to lock out your electrical equipment or valves

4 products

Lockout Steering Wheel Covers

Cover a steering wheel to communicate when equipment is out of service

4 products

Ladder Lockout Signs

Block the rungs on a ladder to prevent unauthorized climbing

2 products

Other Products

Padlocks

Shackle objects together, such as a door and its frame, to prevent theft or unauthorized entry

1,129 products

Reference Media

View digital machinery handbooks and video programs on OSHA's lockout/tagout procedures

3 products

Electrical Enclosures

House and protect power supplies, control panels, and other electrical equipment

58 products

Compressed Air Regulator Locks

Lock over your regulator knob to prevent unwanted pressure changes

2 products