Title: LOTO Devices and Equipment
Type: Lesson
To isolate and control energy, workers use a variety of Lockout / Tagout devices. Each one is designed to fit a specific type of machine or energy source. Knowing which tool to use — and how to use it — is critical to safety.
Allow multiple locks to be attached to a single energy-isolating device
Ensures that no one can remove the lock until all workers have removed their personal locks
Cover or block the plug of an electrical cord
Used for powered hand tools, machines, and equipment with standard plugs
Gate valve lockouts: fit over circular handwheels
Ball valve lockouts: clamp around lever-style handles
Used to isolate pressurized systems (water, gas, chemicals)
Snap onto breaker switches to prevent resetting
Used in electrical panels
Warning tags attached with zip ties or non-reusable cable ties
Must include:
Worker’s name
Reason for lockout
Date and time
“Do Not Operate” warning
Used when multiple workers need access to a lockout point
Each worker places their personal lock on a group box that holds the controlling key
Each authorized employee should have:
Their own uniquely keyed padlock
Tags with their name and contact info
Lockout kit with common devices used at their facility
One worker = one key = one lock.
LOTO devices must be durable, standardized, and identifiable. Never use duct tape, rope, or makeshift materials — only OSHA-compliant lockout devices are acceptable.
Click “Mark Complete” to continue to Lesson 5: The 6 Steps of Lockout / Tagout, where we’ll walk through the full LOTO process, from preparation to removal.