Description
The Cutler Hammer-Eaton C321KM50 Mechanical Interlock is a part that physically prevents two contactors or breaker from closing at the same time, maintaining proper sequencing in electrical circuits. It is used in dual-motor setups or multi-power configurations where simultaneous activation could cause conflicts or damage. Installed on control panels in HVAC systems, the interlock coordinates the operation of fans, compressors, and other connected parts, allowing only the correct circuit to engage at a given moment and ensuring that each component operates as intended during system operation.









