This is a push-button switch with a normally open (N.O.) single-pole single-throw (SPST) configuration. It features an extended round button design, suitable for panel mounting. The switch supports up to 10A current and a maximum voltage of 440VAC or 220VDC, with a power rating of 745.7VA. It is a momentary contact type, activated by pressing the button, and secured with a screw mounting system.