Lockout hasps are specialized safety devices designed to secure energy-isolating mechanisms during maintenance activities. They allow multiple locks to be attached to a single hasp, ensuring that only authorized personnel can remove the hasp and restore equipment operations. Primarily made from durable materials like steel or high-strength plastic, lockout hasps come in various shapes and sizes to accommodate different equipment types and locking systems.

    How Do Lockout Hasps Work?

    The operational principle of a lockout hasp is straightforward. When a technician needs to perform maintenance on a piece of machinery, they physically isolate the energy source, such as shutting off a circuit breaker or valve. The technician then loops the hasp through the isolation point (e.g., the control switch or lever) and locks it in place. After securing the hasp, the technician can use their unique padlock to secure it. If other team members are working on the same equipment, they can attach additional locks to the hasp, effectively communicating that multiple personnel are involved in the maintenance task. Only when all locks are removed can the hasp be detached, allowing the equipment to be energized again.