Single Pole Double Throw (SPDT) Door Interlock Push Button Switch, 16 A @ 250 V ac. Switch Operation: Momentary. Terminal Type: Tab. Actuator Type: Plunger. Contact Material: Silver. IP Rating: IP40. Minimum Operating Temperature: -40°C. Maximum Operating Temperature: +85°C. Operating Temperature Range: -40 → +85°C. MPN: 1115.0101, Marquardt