Siemens Allis-Chalmers RCN22 Contactor — model RCN22 with 2NO 2NC auxiliary contacts and the A600 designation. It provides two normally open (2NO) and two normally closed (2NC) auxiliary contacts for signaling and interlock functions alongside its main power contacts. Commonly used in industrial control panels to switch AC motor circuits and coordinate start/stop sequences in equipment such as conveyors, pumps, and fans. As a heritage Allis-Chalmers/Siemens product, ensure compatibility with the coil and main-contact ratings in the RCN22 family when sourcing replacement parts.
