Westinghouse 0T2NS Pushbutton Auxiliary Contact Block

The Westinghouse 0T2NS Auxiliary Contact Block provides two normally closed contacts (2NC) for interlocking and stop-circuit control in pushbutton stations, selector switches, and operator control assemblies. Designed as a panel-mounted accessory for Westinghouse Oil-Tite pushbutton and selector switch systems, it supports reliable auxiliary switching in industrial electrical control and automation applications such as manufacturing equipment, conveyor lines, motor control panels, and other industrial machinery. With its 2NC configuration, the block interrupts control circuits to enable safety interlocks and stop-function logic within operator control assemblies. For retrofit or replacement, common options listed for compatibility include Eaton M22 2NC, Schneider Electric Harmony 2NC, and Siemens SIRIUS ACT 2NC contact blocks.