Circuit breaker control relay Schweitzer Engineering Laboratories

Lower operating costs and increase automation capabilities by replacing older electromechanical relay schemes, control switches, and metering devices in one device. Provides sensitive, secure combination of phase, negative-sequence, residual-ground, and neutral-ground overcurrent elements, including directional control, and programmable US and IEC time-current curves for complete distribution system protection. Large front-panel keyboard with local display panel and programmable operator control interface pushbuttons replaces control switches, indicating lamps, and wiring at the breaker control panel. Available with optional power elements, sensitive directional earth fault elements, voltage sag, swell, and interruption records.

More specifications...