Lockout Tagout Capability
Most Meltric plugs and receptacles facilitate compliance with OSHA lockout-tagout requirements. Users can perform lock-out by simply inserting a lock through an existing hole in the device. The user only needs to provide the lock – no additional mechanisms are required.

On most models the lockout provision is a simple 5/16" hole in the plug shroud that facilitates the insertion of a typical padlock which prevents the plug from being inserted into a receptacle.
Optional Receptacle Lockout Provisions

An optional provision for locking out Meltric receptacles is also available. In most cases this is accomplished via a specially machined hole at the receptacle pawl which allows insertion of a padlock to secure the receptacle lid in a closed position. This same optional provision can be used to prevent removal of the plug if desired.
The combination of the silver-nickel material with spring-loaded butt-style design makes the contacts ideal for repetitive making and breaking of connections under load.