What is "powerlock"

Powerlock is a range of single pole electrical connectors used for high current, low voltage (up to 1000 V AC) applications, similar to but considered safer than camlock connectors. Originally developed by Litton Veam in the mid-1990s, VEAM Powerlock is now a brand of ITT Cannon. Compatible versions are also available from other manufacturers.

Powerlock connectors are available in 400 A and 660 A versions. All versions can be used for single phase and, much more commonly, three phase applications. Three phase connections require five separate cables (or four if neutral is not required).