Protection Relays & Systems

Protection relays detect abnormal operating conditions in an industrial system and may trigger an alert or isolate the offending device from the system. Common detection functions include; Arc-flash, temperature monitoring, ground fault, over-current, over-voltage, reverse power flow, over-frequency, under-frequency and phase loss, sequence or imbalance.


Littelfuse Inc. SE-105E

GF-GC MON C/W 1N5339B TERM 240VA

1003.14

Littelfuse Inc. SE-703-0D-02

MONITOR EARTH LEAKAGE

1002.24

Littelfuse Inc. SE-703-0D-00

MONITOR EARTH LEAKAGE

1002.24

Littelfuse Inc. AF0100-10

ARC-FLASH RELAY 24VDC SUPPLY

1001.94

Littelfuse Inc. PGR-3200-120

GROUND FAULT&INSUL MONITOR 120V

1001.3

Littelfuse Inc. PGR-3200

GROUND FAULT&INSULATION MONITOR

1001.3

Littelfuse Inc. SE-601-0U

DC GRND FAULT RELAY 55-75 VDC SU

991.24

Littelfuse Inc. PGR-6150-120

STD MTR RELAY 25A CTS 120/240

988.4