Trip-circuit supervision: SPER 1B1 C4 SPER 1C1 SPER 1C2 Trip-circuit supervision is used to supervise important control circuits such as circuit breaker and disconnector control circuits and signaling circuits in power installations. Typically, each control circuit requires its own device to monitor. If you need to control several branches of the circuit, then the required number of devices must be connected to this control circuit.
The SPER 1B1 C4 consists of a standard pluggable relay element (11 pins) and a corresponding socket for rail mounting.
The SPER 1C1 / SPER 1C2 devices are designed for use in the COMBIFLEX system. The supply voltage of the device is from 40 to 265 V.