Trip circuit supervision relay SPER 1B1 C4
Supervises essential control circuits, including circuit-breaker trip and disconnector circuits, providing immediate information about faults
Technical Specifications
Continuous monitoring of trip circuits and other essential control circuits
One relay per circuit; multiple relays can supervise branched circuits
Standard 11-pin plug-in unit with corresponding terminal socket for rail mounting
Preset operate time to prevent unwanted alarms during circuit-breaker operation
LED indicator on front panel shows relay operation
Detects bad contacts, contact welding, and auxiliary voltage failures
Available in COMBIFLEX design (see SPER 1C1 and SPER 1C2)
One relay per circuit; multiple relays can supervise branched circuits
Standard 11-pin plug-in unit with corresponding terminal socket for rail mounting
Preset operate time to prevent unwanted alarms during circuit-breaker operation
LED indicator on front panel shows relay operation
Detects bad contacts, contact welding, and auxiliary voltage failures
Available in COMBIFLEX design (see SPER 1C1 and SPER 1C2)
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