Westinghouse Cutler-Hammer L-63 electrical interlock mechanism (L-63) is an industrial interlock with an auxiliary contact rated for 250 VDC. Designed for use in electrical equipment requiring a dedicated interlock function and secondary signaling, it provides a controlled interlock path within control panels or similar gear. This L-63 interlock unit identifies the model and confirms a 250 VDC rating with an auxiliary contact for applications needing both interlock and signaling in a single mechanism.
