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Protection Relays & Systems
(1141 results)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.
| Part # | Manufacturer | Description | Availability | Pricing | Quantity |
|---|---|---|---|---|---|
 SE-330HV-28-00Protection Relays & Systems | Littelfuse | MONITOR NGR HV 48V DUAL SC FBR | In Stock | - | |
 SE-135-10Protection Relays & Systems | Littelfuse | GF-GC MON 18-72 VDC USES SE-TA12 | In Stock | - | |
 SE-330-20-01Protection Relays & Systems | Littelfuse | NGR MONITOR NC 48-VDC | In Stock | - | |
SE-330-27-00Protection Relays & Systems | Littelfuse | MONITOR NGR 48V FBR/RJ45 61850 | In Stock | - | |
SE-330HV-25-01Protection Relays & Systems | Littelfuse | MONITOR NGR HV 48V DUAL SC FBR | In Stock | - | |
 EL731-11-00Protection Relays & Systems | Littelfuse | Electromechanical Relay 48VDC 24VAC 3PDT(129x96x48)mm Panel Earth Leakage Relay | In Stock | - | |
 K2CM-2HProtection Relays & Systems | Omron Automation | RELAY MOTOR PROTECTIVE 50-160A | In Stock | - | |
 SE-325ESNTProtection Relays & Systems | Littelfuse | NGR MON 240 VAC EXT RF NL GF 0.1 | In Stock | - | |
 WD2759-002Protection Relays & Systems | TE Connectivity | Time Delay Relay 13.5 to 32VDC SPDT DIN Rail | In Stock | - | |
EL731-23-10Protection Relays & Systems | Littelfuse | AC/DC EARTH-LKGE RELAY | In Stock | - | |
 PGR-4300-24Protection Relays & Systems | Littelfuse | Electromechanical Relay 24VDC 10ADC/8AAC SPDT(55x115x75)mm DIN Rail Generator Ground Fault Relay | 13 | - | |
 MPU-32-01-01Protection Relays & Systems | Littelfuse | MPR WITH TIA-232/TIA-485 | In Stock | - | |
 SE-330-06-00Protection Relays & Systems | Littelfuse | NGR MON UNIV E-NET DUAL RJ45 618 | In Stock | - | |
 FPS-CTU-02-00Protection Relays & Systems | Littelfuse | FEEDER PROTECT CONTROL UNIT | In Stock | - | |
 APR-SProtection Relays & Systems | Omron Automation | PHASE REVERSAL RELAY 200/220V | 7 | - | |
 777-TSProtection Relays & Systems | Littelfuse | 3-PHASE OVERLOAD RELAY/190-480 | In Stock | - | |
 56370TDProtection Relays & Systems | Schneider Electric | RH99M GRD FLT RLY W/ 30MA DELAY | In Stock | - | |
 FPU-32-00-00Protection Relays & Systems | Littelfuse | Feeder Protection Relays | In Stock | - | |
 640PSR-CEProtection Relays & Systems | Selec Controls | 3-3W PHASE FAILURE RELAY WITH PH | In Stock | - | |
SE-MUXProtection Relays & Systems | Littelfuse | GF/GC TERM MULTIPLEXER | In Stock | - | |
SE-330HV-06-01Protection Relays & Systems | Littelfuse | NGR MON UNIV DUAL RJ45 61850 K4 | In Stock | - | |
 900ELR-2-230V-CEProtection Relays & Systems | Selec Controls | DIGITAL EARTH LEAKAGE RELAY, LEA | In Stock | - | |
SE-330-28-01Protection Relays & Systems | Littelfuse | MONITOR NGR 48V DUAL FBR 61850 | In Stock | - | |
K2CM-Q1LAProtection Relays & Systems | Omron Automation | RELAY MOTOR PROTECTIVE 8-26A | In Stock | - | |
 SE-703-0UProtection Relays & Systems | Littelfuse | Earth-Leakage Monitor | In Stock | - |
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