The SI-QS series safety switches feature positive opening safety contacts and are not dependent upon springs. In order to minimize intentional tampering or defeat they utilise mechanically coded actuators with two independent operating elements. The head can rotate allowing actuator engagement from front or back or either of two top positions.

Maximum switching speed: 30 operations per minute
Mechanical life: 1 million operations
Short circuit protection
Operating temperature range: -30 to +80 °C
Environments rating: IP65 (IP67 with optional wiring access door)

Interlock Switch