3RN20121BW31THERMISTOR MOTOR PROTECTION RELAY STANDARD EVALUATION UNIT 22.5 MM ENCLOSURE SCREW TERMINAL 2 CHANGE-OVER CONTACTS BISTABLE US = 24 V-240 V AC/DC MANUAL/AUTO/REMOTE RESET 2 LEDS (READY/TRIPPED) GALVANIC ISOLATION TEST/RESET BUTTON WIRE BREAK MONITORING SH