3SE5 Safety Interlock Switch, Metal, 2NC/1NO. Connection Type: M20. Lock Style: Key. Maximum AC Voltage: 230V. Maximum DC Voltage: 230V. Range: Sirius. Minimum Operating Temperature: -25°C. Dimensions: 110 x 40.5 x 37.3 mm. Depth: 37.3mm. Maximum Current: 3 A, 6 A. MPN: 3SE5112-3QV10, Siemens