Honeywell current Transducer CSNK500M Current Transducer CSNK500M Honeywell Board Mount Current Sensors +/-1275 A +/-0.5 % Closed Loop Linear CSNK500M – Current Sensor 1275A 1 Channel Hall Effect, Closed Loop Bidirectional Module, Single Pass Through from Honeywell Sensing Buy from Sanghvi electronics