Eaton 601548 138 J1C is an auxiliary contact block for Cutler-Hammer control gear, configured with 2 normally open and 2 normally closed contacts. This four‑circuit auxiliary adds signaling and feedback capability to compatible contactors or starters, letting control circuits detect coil energization and implement simple interlock logic. The part carries the Eaton Cutler-Hammer designation 601548 and the J1C variant, making it a precise fit for applications that require both NO and NC outputs in a compact auxiliary module.
