253 Protector Relay Index

253-PAD 253-PAP 253-PAV	SINGLE PHASE UNDER / OVER CURRENT 3 PHASE 3 OR 4 WIRE OVER CURRENT 3 PHASE 3 OR 4 WIRE UNDER CURRENT
253-PBV	LOW AND HIGH TRANSDUCER TRIP
253-PDC	DC INPUT UNDER / OVER RELAY WITH EXTERNAL TIME DELAY
253-PH3	SPEED SENSING
253-PHD	UNDER / OVER FREQUENCY PROTECTOR
253-PVB	SINGLE PHASE UNDER / OVER VOLTAGE
253-PVE 253-PVM	3 PHASE 4 WIRE UNDER / OVER VOLTAGE 3 PHASE 3 WIRE UNDER / OVER VOLTAGE