Protection Relays & Systems

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Mfr Part #	Quantity Available	Price	Series	Package	Product Status	Function	Voltage - Supply	Trip Range	Delay Time	Mounting Type	Termination Style	Features	Operating Temperature
900VPR-2-300/600V-CU 3 PHASE-3W 300 TO 600V, PHASE FA Selec Controls USA Inc.	90 In Stock	1 : Fr.64.01000 Box	900VPR	Box	Active	Multiple	280 ~ 600VAC	-	0 ~ 99.9s	DIN Rail	Screw Terminal	-	-
EL3100-00 GRND FAULT INDICATE SYST 3PHASE Littelfuse Inc.	30 In Stock 27 Factory	1 : Fr.829.68000 Bulk	EL3100	Bulk	Active	Ground Fault	208 ~ 600VAC	-	-	Chassis Mount, DIN Rail	Screw Terminal	-	-
SE-701-0U MONITOR GRND FALT RELAY 120/240V Littelfuse Inc.	66 In Stock 33 Factory	1 : Fr.1,010.85000 Bulk	SE-701	Bulk	Active	Ground Fault	120/240VAC/DC	-	0.5 ~ 2.5s	Chassis Mount, DIN Rail	Screw Terminal	CT Loop Monitoring, Harmonic Filtering, Manual Reset, Test Button	-40°C ~ 60°C
SE-105 GROUND FAULT MONITOR Littelfuse Inc.	32 In Stock	1 : Fr.1,337.30000 Bulk	SE-105	Bulk	Active	Ground Fault	120VAC	0.5 ~ 5A	0.1 ~ 1s	Chassis Mount	Screw Terminal	Automatic Reset, Manual Reset	-
900CPR-1-BL-U-CE 1 & 3, OVER / UNDER CURRENT MONI Selec Controls USA Inc.	27 In Stock	1 : Fr.52.16000 Box	900CPR	Box	Active	Overcurrent, Undercurrent	85 ~ 270VAC/DC	0 ~ 1.19kA	0 ~ 99.9s	DIN Rail	Screw Terminal	Automatic Reset, Manual Reset	0°C ~ 50°C
ELR-341-1 PANEL MOUNT ELR, LEAKAGE CURRENT Selec Controls USA Inc.	30 In Stock	1 : Fr.43.89000 Box	ELR	Box	Active	Ground Fault	90 ~ 270VAC/DC	30mA ~ 30A	0 ~ 999s	Panel Mount	Screw Terminal	Automatic Reset, Manual Reset	0°C ~ 55°C
WOV-1-208 WOV-1-208=WILMAR OVERVOLTAGE 2 TE Connectivity Aerospace, Defense and Marine	0 In Stock Check Lead Time	5 : Fr.1,106.44800 Bulk	-	Bulk	Active	-	-	-	-	-	-	-	-
WOV-1-380 WOV-1-380=WILMAR OVERVOLTAGE 3 TE Connectivity Aerospace, Defense and Marine	0 In Stock Check Lead Time	5 : Fr.1,106.44800 Bulk	-	Bulk	Active	-	-	-	-	-	-	-	-
WOV-1-575 WOV-1-575=WILMAR OVERVOLTAGE 5 TE Connectivity Aerospace, Defense and Marine	0 In Stock Check Lead Time	5 : Fr.1,116.29800 Bulk	-	Bulk	Active	-	-	-	-	-	-	-	-
WUVT1-100 WUVT1-100=RELAY, UNDERVOLTAGE TE Connectivity Aerospace, Defense and Marine	0 In Stock Check Lead Time	5 : Fr.1,315.12800 Bulk	-	Bulk	Active	-	-	-	-	-	-	-	-
WUV-240DC WUV-240DC=UNDERVOLTAGE RELAY - TE Connectivity Aerospace, Defense and Marine	0 In Stock Check Lead Time	5 : Fr.1,351.61000 Bulk	-	Bulk	Active	-	-	-	-	-	-	-	-
WUVT1-200 WUVT1-200=RELAY, UNDERVOLTAGE TE Connectivity Aerospace, Defense and Marine	0 In Stock Check Lead Time	5 : Fr.1,412.96800 Bulk	-	Bulk	Active	-	-	-	-	-	-	-	-
WUVT1-416 WUVT1-416=RELAY, UNDERVOLTAGE TE Connectivity Aerospace, Defense and Marine	0 In Stock Check Lead Time	5 : Fr.1,412.96800 Bulk	-	Bulk	Active	-	-	-	-	-	-	-	-
WUVT1-460 WUVT1-460=RELAY, UNDERVOLTAGE TE Connectivity Aerospace, Defense and Marine	0 In Stock Check Lead Time	5 : Fr.1,412.96800 Bulk	-	Bulk	Active	-	-	-	-	-	-	-	-
WUVT1-480 WUVT1-480=RELAY, UNDERVOLTAGE TE Connectivity Aerospace, Defense and Marine	0 In Stock Check Lead Time	5 : Fr.1,412.96800 Bulk	-	Bulk	Active	-	-	-	-	-	-	-	-
WUVT1-230 WUVT1-230=WILMAR UNDERVOLTAGE TE Connectivity Aerospace, Defense and Marine	0 In Stock Check Lead Time	5 : Fr.1,412.96800 Bulk	-	Bulk	Active	-	-	-	-	-	-	-	-
WUVT1-575 WUVT1-575=RELAY, UNDERVOLTAGE TE Connectivity Aerospace, Defense and Marine	0 In Stock Check Lead Time	5 : Fr.1,412.96800 Bulk	-	Bulk	Active	-	-	-	-	-	-	-	-
WUVT1-440 WUVT1-440=RELAY, UNDERVOLTAGE TE Connectivity Aerospace, Defense and Marine	0 In Stock Check Lead Time	5 : Fr.1,412.96800 Bulk	-	Bulk	Active	-	-	-	-	-	-	-	-
WUVT1-400 WUVT1-400=RELAY, UNDERVOLTAGE TE Connectivity Aerospace, Defense and Marine	0 In Stock Check Lead Time	5 : Fr.1,412.96800 Bulk	-	Bulk	Active	-	-	-	-	-	-	-	-
WUVT1-525 WUVT1-525=RELAY, UNDERVOLTAGE TE Connectivity Aerospace, Defense and Marine	0 In Stock Check Lead Time	5 : Fr.1,412.96800 Bulk	-	Bulk	Active	-	-	-	-	-	-	-	-
3RN20121BW30 THERMISTOR MOTOR PROT. 2CO REMOT Siemens	6 In Stock	1 : Fr.278.10000 Bulk	SIRIUS 3RN2	Bulk	Active	Overtemperature	24 ~ 240VAC/DC	-	-	DIN Rail	Screw Terminal	Manual Reset	-25°C ~ 60°C
3UG46151CR20 VOLTAGE MONITORING RELAY Siemens	23 In Stock	1 : Fr.300.58000 Bulk	SIRUS 3UG4	Bulk	Active	Phase Loss, Phase Sequence, Overvoltage, Undervoltage	160 ~ 690VAC	160 ~ 690VAC	0.1 ~ 20s	DIN Rail	Screw Terminal	Automatic Reset	-25°C ~ 60°C
SE-TA6 TERM ASSY 5.6V 50W Littelfuse Inc.	16 In Stock	1 : Fr.426.48000 Bulk	SE-TA6	Bulk	Active	Ground Fault	-	-	-	Chassis Mount	Screw Terminal	-	-
PGR-3100 GRND FAULT INDICAT SYST LED 30V Littelfuse Inc.	6 In Stock	1 : Fr.652.37000 Bulk	PGR-3100	Bulk	Active	Ground Fault	600VAC	-	-	Panel Mount	Screw Terminal	Test Button	-
777-P2 3-PHASE OLR/200-480V/2-800FLA+ Littelfuse Inc.	16 In Stock	1 : Fr.708.83000 Bulk	777	Bulk	Active	Multiple	200 ~ 480VAC	200 ~ 480V AC	-	Chassis Mount	Screw Terminal	-	-20°C ~ 70°C

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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.