Westinghouse Electric PB1A C940614 Contact Block

The Westinghouse PB1A C940614 Contact Block is an auxiliary, normally open (N.O.) contact block (Model B) designed for operator interfaces in industrial control systems. It mounts on pushbuttons and control stations with screw-terminal connections, carries a 600 V AC/DC rating and 50/60 Hz compatibility, and lists a secondary reference number of C940614 to match replacement parts. This industrial duty rated unit supports control signal switching and contact expansion within industrial control panels and MCC systems, and is suitable for manufacturing facilities, HVAC equipment, and power distribution applications where reliable auxiliary contacts are required for safe, continuous operation. Common replacements include Allen-Bradley 800T-XA, Eaton 10250T, and Schneider Electric Harmony ZBE101 blocks, reflecting cross-compatibility with compatible pushbutton assemblies and control stations.