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. 777-LR-TS

3-PHASE OVERLOAD RELAY/190-480

640.4

Littelfuse Inc. 777-HVR-KW/HP-P2

3-PH POWER MONITOR/340-480V/

640.4

Littelfuse Inc. 777-575-TS

3-PHASE OVERLOAD RELAY/500-600

640.4

TE Connectivity Aerospace Defense and Marine 6-1618386-5

WOUV-12DC-A = RELAY, OVER/UNDERV

633.19

Littelfuse Inc. SE-100T

GROUND FAULT MONITOR

584.35

Littelfuse Inc. 777-LR-HRG-P2

3-PH OLR/200-480V/12.5-800FLA/

581.31

Littelfuse Inc. 777-HRG-P2

3-PH OLR/200-480V/2-90FLA/

581.31

Littelfuse Inc. 777-575-LR-HRG-P2

3-PH OLR/500-600V/12.5-800FLA/

581.31