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Ordering
                                           
256-P Protector Relay Index.

256-PAQ

256-PAR

256-PAS

256-PAT

SINGLE PHASE OR 3P 4W REVERSE POWER RELAY+TEST SWITCH

3 PHASE 3 WIRE REVERSE POWER RELAY WITH TEST SWITCH

SINGLE PHASE OR 3 PHASE 4 WIRE REVERSE POWER RELAY

3 PHASE 3 WIRE REVERSE POWER RELAY

256-PCC HOT SPOT 6 RTD RELAY
256-PHV SINGLE PHASE UNDER / OVER VOLTAGE-FREQUENCY RELAY

256-PLD

256-PLL

SYNCHRO-CHECK RELAY WITH DEAD BUS FACILITY

SYNCHRO-CHECK RELAY

256-PRA

256-PRB

256-PRC

HOT SPOT 3 RELAY 3 RTD INPUTS 3 SETPOINTS 3 RELAYS

HOT SPOT 3 RELAY 3 RTD INPUTS 2 SETPOINTS 2 RELAYS

HOT SPOT 3 RELAY 3 RTD INPUTS 1 SETPOINTS 1 RELAYS

256-ROC DISCONTINUED---VECTOR SHIFT AND ROCOF RELAY