DigiKey Datasheets for Protective Relays and Monitoring Relays
Protective relays and monitoring relays detect or monitor for abnormal power system conditions.
Protective Relays and Monitoring Relays: Learn more
| Product Name | Notes |
|---|---|
| 1 & 3, OVER / UNDER CURRENT MON | |
| 1 & 3, OVER / UNDER CURRENT MONI | |
| 1, OVER / UNDER CURRENT MONITORI | |
| 1-2W ,ANALOG PUMP PROTECTION RE | |
| 1-2W ,DIGITAL PUMP PROTECTION RE | |
| 1-2W, UNDER / OVER VOLTAGE, PHAS | |
| 1-PHASE OVERLOAD RELAY/ 100-24 | |
| 1-PHASE OVERLOAD RELAY/ 380-48 | |
| 1-PHASE POWER MONITOR/ 100-240 | |
| 20-050-19X=WILMAR VOLT FREQ 120V | |
| 255-6X=WILMAR OVER/UNDERVOLTAG | |
| 3 PHASE-3W 165 TO 300V, PHASE FA | |
| 3 PHASE-3W 170 TO 290V, PHASE FA | |
| 3 PHASE-3W 300 TO 600V, PHASE FA | |
| 3-3W PHASE FAILURE RELAY WITH PH | |
| 3-3W, 3-4W, UNDER / OVER VOLTAGE | |
| 3-3W, ANALOG PUMP PROTECTION REL | |
| 3-3W, DIGITAL PUMP PROTECTION RE | |
| 3-3W, PHASE FAILURE, PHASE SEQUE | |
| 3-3W, UNDER / OVER VOLTAGE, PHAS | |
| 3-PH OVERLOAD REL./500-600V/ | |
| 3-PH POWER MONITOR/340-480V/ | |
| 3-PHASE OLR/200-480V/2-800FL A+ | |
| 3-PHASE OVERLOAD RELAY/190-480 | |
| 3-PHASE OVERLOAD RELAY/200-480 | |
| 3-PHASE POWER MONITOR/190-480V | |
| 3-PHASE POWER MONITOR/200-480V | |
| 3-PHASE POWER MONITOR/500-600V | |
| 301-38X=WILMAR OVERVOLTAGE 208 | |
| 3PH MONITORING RELAY 240V | |
| 3PH MONITORING RELAY 480V | |
| AC-301 SERIES THREE PHASE LINE U | |
| AC/DC EARTH-LKGE RELAY 75-275V | |
| AC/DC EARTH-LKGE RELAY | |
| ANALOG ,1-2W, 3-4W, UNDER / OVER | |
| ANALOG EARTH LEAKAGE RELAY, LEAK | |
| ANALOG MOTOR PROTECTION RELAY, 2 | |
| ARC FLASH RELAY CONFORMAL COATED | |
| ARC-FLASH RELAY 24V W/CONFORMAL | |
| ARC-FLASH RELAY 24VDC SUPPLY | |
| ARC-FLASH RELAY NO COMM. UL&C-TI | |
| ARC-FLASH RELAY UNIV W/CONFORMAL | |
| ARC-FLASH RELAY W/ CONFORMAL | |
| ARC-FLASH RELAY, UNIVERSAL SUPPL | |
| ARC-FLASH RELAY | |
| AUT. CORRECTION OF PHASE SEQU. | |
| D101X=RELAY, CLOSE DIFFERENTIA | |
| DC GRND FAULT RELAY 55-75 VDC SU | |
| DC GROUND FAULT RELAY 32-70 VDC | |
| DC GROUND FAULT RELAY 9-36 VDC | |
| DIGITAL ,1-2W, 3-4W, UNDER / OVE | |
| DIGITAL EARTH LEAKAGE RELAY, LEA | |
| DIGITAL PANEL MOUNT MOTOR PROTEC | |
| EARTH LEAKAGE MONITORING RELAY | |
| EARTH LEAKAGE RELAY WITH INBUILT | |
| EARTH-LEAKAGE MONITOR 24-VAC | |
| EARTHLEAKAGE RELAY RH10P 30 MA 2 | |
| EARTHLEAKAGE RELAY RH10P 300 MA | |
| EARTHLEAKAGE RELAY RH99P WITH MA | |
| EPAK-VMR-1PH-300-230 V | |
| EPAK-VMR-3PH-480-ILP -H | |
| FPR W/TIA-232/DEVICENET | |
| FPR W/TIA-232/ETHERNET | |
| FPR W/TIA-232 | |
| FPR WITH TIA-232/TIA-485 | |
| GEN GRND FAULT RELAY 120V SUP | |
| GEN GRND FAULT RELAY 12VDC SUP | |
| GEN GRND FAULT RELAY-24VDC SUP | |
| GF-GC MON 120VAC/VCD LATCHING GC | |
| GF-GC MON 18-72 VDC USES SE-TA12 | |
| GF-GC MON AC/DC SUPPLY EXT-GC | |
| GF-GC MON C/W 1N5339B TERM 240VA | |
| GF-GC MON DC SUPPLY EXT-GC | |
| GF-GC MON UVR LATCHING GC 120V | |
| GF-GC MONITOR 120-VAC/DC | |
| GF-GC MONITOR 120VAC LATCHING GC | |
| GF-GC MONITOR LATCHING GC | |
| GF-GC MONITOR UVR 120 VAC/VDC SU | |
| GF-GC MONITOR UVR 240 VAC SUPPLY | |
| GFD SERIES 3-PHASE GROUND FAULT | |
| GFGC MONITOR ETHERNET | |
| GFGC MONITOR LOW VOLTAGE | |
| GFR RH99M AUTO TIME DELAY UL 120 | |
| GRND FAULT INDICAT SYST LED 30V | |
| GRND FAULT INDICATE SYST 3PHASE | |
| GRND RES RELAY DEVICENET DC SUP | |
| GRND RES RELAY DEVICENET UNIV | |
| GRND RES RELAY ETHERNET UNIV | |
| GRND RES RELAY ETHERNET-DC SUP | |
| GRND RES RELAY LOCAL ONLY DC SUP | |
| GRND RESISTOR RELAY UNIVERSAL | |
| GROUND CONTINUITY MONITOR | |
| GROUND FAULT MONITOR | |
| GROUND FAULT RELAY 32-70 VDC SUP | |
| GROUND FAULT&INSUL MONITOR 120V | |
| GROUND RESISTANCE SIGNALING MODU | |
| GROUND-FAULT GROUND CHECK MON | |
| GROUND-FAULT GROUND-CHECK MON | |
| GROUND-FAULT MONITOR SUPPLY: 24 | |
| KIT MPR WITH TIA-232 AND CIM MPU | |
| MONITOR EARTH LEAKAGE 120/240VAC | |
| MONITOR EARTH LEAKAGE 24VDC | |
| MONITOR EARTH LEAKAGE | |
| MONITOR GF-GC DC SUPPLY EXT-GC | |
| MONITOR GFGC AC/DC EXT-GC ETHER | |
| MONITOR GRD-FAULT GRD-CHK RELAY | |
| MONITOR GRND FALT RELAY 120/240V | |
| MONITOR GRND FAULT RELAY 12/24V | |
| MONITOR NGR 48V DUAL FBR 61850 | |
| MONITOR NGR 48V DUAL RJ45 61850 | |
| MONITOR NGR 48V FBR/RJ45 61850 | |
| MONITOR NGR 48VDC DUAL SC FBR K4 | |
| MONITOR NGR 48VDC DUAL SC FBR | |
| MONITOR NGR 48VDC SC FBR/RJ45 | |
| MONITOR NGR HV 48V DUAL RJ45 | |
| MONITOR NGR HV 48V DUAL SC FBR | |
| MONITOR NGR HV 48V SC FBR/RJ45 | |
| MOTOR GROUND FAULT & INSUL RELAY | |
| MOTOR OVERLOAD PROTECTION 8000 | |
| MOTOR PROTECTIVE RELAY | |
| MPR W/TIA-232/DEVICENET | |
| MPR W/TIA-232/ETHERNET | |
| MPR WITH TIA-232/TIA-485 | |
| MPS W/DEVICENET CONTROL UNIT | |
| MPS W/ETHERNET CONTROL UNIT | |
| MPS W/STANDARD COMM CONTROL UNIT | |
| NFC CONTROL RELAY 3-PHASES | |
| NGR MON 120 VAC 4K8 NGR SHORT DE | |
| NGR MON 120 VAC EXT RF GF TIME 0 | |
| NGR MON 120 VAC NON-LATCH GF 0.1 | |
| NGR MON 120V GF TIME 0.1 TO 5 S | |
| NGR MON 120V NL EXT RF GF 0.1-5S | |
| NGR MON 120V NON-LATCH GF 0.1-5S | |
| NGR MON 120VAC/VDC EXT RF GF 0.1 | |
| NGR MON 120VAC/VDC NON-LATCH | |
| NGR MON 240 VAC EXT RF GF TIME 0 | |
| NGR MON 240 VAC EXT RF NL GF 0.1 | |
| NGR MON 240 VAC EXT RF NON-LATCH | |
| NGR MON 240 VAC EXTENDED RF TRIP | |
| NGR MON 240 VAC GF TIME 0.1-5S | |
| NGR MON 240 VAC NON-LATCH GF 0.1 | |
| NGR MON EXTENDED RF TIME GF 0.1- | |
| NGR MON EXTENDED RF TRIP NON-LAT | |
| NGR MON HV UNIV E-NET DUAL SC FI | |
| NGR MON HV UNIV E-NET SC FIBER R | |
| NGR MON UNIV DUAL RJ45 61850 K4 | |
| NGR MON UNIV DUAL SC FIBER 61850 | |
| NGR MON UNIV E-NET DUAL RJ45 618 | |
| NGR MON UNIV E-NET DUAL SC FIBER | |
| NGR MON UNIV E-NET SC FIBER RJ45 | |
| NGR MON UNIV ETHERNET DUAL SC FI | |
| NGR MON UNIV ETHERNET SC FIBER R | |
| NGR MON UNIV SC FIBER & RJ45 618 | |
| NGR MON UNIV SC FIBER RJ45 61850 | |
| NGR MONITOR 120 VAC GF TIME 0.1- | |
| NGR MONITOR 120 VAC NON-LATCHING | |
| NGR MONITOR 120 VAC/VDC EXT RF T | |
| NGR MONITOR 120 VAC/VDC NON-LATC | |
| NGR MONITOR 120VAC SUPPLY | |
| NGR MONITOR 240 VAC NON-LATCHING | |
| NGR MONITOR 240VAC SUPPLY | |
| NGR MONITOR EXT RES TRIP TIME | |
| NGR MONITOR HV DEVICENET NC K4 | |
| NGR MONITOR HV DEVICENET | |
| NGR MONITOR HV ETHERNET NC | |
| NGR MONITOR HV ETHERNET | |
| NGR MONITOR HV LVPS DEVICENET NC | |
| NGR MONITOR HV LVPS DEVICENET | |
| NGR MONITOR HV LVPS ETHERNET NC | |
| NGR MONITOR HV LVPS ETHERNET | |
| NGR MONITOR HV LVPS NC K4 | |
| NGR MONITOR HV LVPS | |
| NGR MONITOR HV NC K4 | |
| NGR MONITOR HV | |
| NGR MONITOR NC 48-VDC D-NET | |
| NGR MONITOR NC 48-VDC ETHERNET | |
| NGR MONITOR NC 48-VDC PROFIBUS | |
| NGR MONITOR NC 48-VDC | |
| NGR MONITOR NC DEVICENET | |
| NGR MONITOR NC ETHERNET | |
| NGR MONITOR NC | |
| OVERCURRENT RELAY | |
| PANEL MOUNT ELR, LEAKAGE CURRENT | |
| PMT SE-330 METER PULSING | |
| PROTECTION RELAY 3PH 165-300V AC | |
| PROTECTIVE RELAY 120V | |
| PWR MULTICIRCUIT PROTECT RS-232 | |
| PWR MULTICIRCUIT PROTECT | |
| RELAY 13.5~32V | |
| Relay Coil | |
| RELAY DIGITAL MOONITORING FOR 3P | |
| RELAY MOTOR PROTECTIVE 2-8A | |
| RH99M GRD FLT RLY W/ 30MA DELAY | |
| SE-325 NGR MON ENCL | |
| SE-601-0D WITH CONFORMAL COATING | |
| SE-601-0T WITH CONFORMAL COATING | |
| SE-601-0U WITH CONFORMAL COATING | |
| SE-701-03 WITH CONFORMAL COATING | |
| SE-701-0D WITH CONFORMAL COATING | |
| SE-701-0T WITH CONFORMAL COATING | |
| SE-701-0U WITH CONFORMAL COATING | |
| SE-704-03 WITH CONFORMAL COATING | |
| SE-704-0D WITH CONFORMAL COATING | |
| SE-704-0T WITH CONFORMAL COATING | |
| SE-704-0U WITH CONFORMAL COATING | |
| SENS GRND FAULT RELAY 120V SUP | |
| SENS GRND FAULT RELAY 240V SUP | |
| SENS GRND FAULT RELAY 24VDC SUP | |
| SENSITIVE GF RELAY 32 70 VDC | |
| SENSITIVE GF RELAY 9 36 VDC | |
| SIMPLIFIED ARC-FLASH RELAY | |
| SMT SE-330 2-RJ45 | |
| TERM ASSY 5.6V 50W | |
| THERM. MOTOR PROT. 2CO GOLD PROT | |
| THERMISTOR MOT. PROT. 1CO US=A1 | |
| THERMISTOR MOT. PROT. 1NO 1CO WA | |
| THERMISTOR MOT. PROT. 1NO 1NC BI | |
| THERMISTOR MOT. PROT. 2W GOLD PR | |
| THERMISTOR MOTOR PROT. 1CO US=A1 | |
| THERMISTOR MOTOR PROT. 2 CO BIST | |
| THERMISTOR MOTOR PROT. 2 CO MANU | |
| THERMISTOR MOTOR PROT. 2CO PROT. | |
| THERMISTOR MOTOR PROT. 2CO PROT | |
| THERMISTOR MOTOR PROT. 2CO REMOT | |
| THERMISTOR MOTOR PROTECTION 2CO | |
| THERMISTOR-MOTORSCHU TZ 2W SICHER | |
| VOLTAGE MONITORING RELAY | |
| WD2759-003=OVER/UNDE RVOLTAGE R | |
| WPM-VMR-3PH-PH |