These switches are designed for talk back intercom/paging systems. These are DPDT, center off rocker type design. Privacy position is push on / push off. Call position is momentary on.
Model Number: MCSW-1
Description: Heavy duty privacy / call switch with large screw terminals.
Overall Dimensions (DxWxH): 1.4x0.8x1.4", 36x21x37mm
Colour: White rocker with chromed steel bezel.