A large multi-state Mid-West power company approached E-Z-Hook to see if we could manufacture custom leads using the copper blade version of our macro-hook test connectors, model XH and XHL. The leads would ultimately be used by plant technicians testing power and required a secure right angle bend on the hooks.
Included in the requirement was the ability to close the power circuit after checking that the hook connection was properly connected. We designed in a “key” concept they requested. It was built into the jumper, allowing the user to close the circuit after the connection was verified as good. Additionally we designed jumpers with a similar fused “key” for further security which was required in some test environments. In the end, E-Z-Hook created four variations of leads, some containing a 3 AMP, 250 Volt fuse.