German
Japanese
Portuguese
Korea
Mexico
Dutch
Protection Relays & Systems
(1135 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 |
|---|---|---|---|---|---|
 APMR0016Protection Relays & Systems | Red Lion | MOD APMR 3-PH VAULT DET DIN RAIL | In Stock | - | |
APMR0086Protection Relays & Systems | Red Lion | 3 PHASE FAULT DETECTOR 380VAC | In Stock | - | |
APMR0096Protection Relays & Systems | Red Lion | 3 PHASE FAULT DETECTOR 480VAC | In Stock | - | |
 2916024Protection Relays & Systems | Phoenix Contact | MODULE DIGITAL OUTPUT IP20 | In Stock | - | |
 DPD02DM44Protection Relays & Systems | Carlo Gavazzi | 3PH MONITORING RELAY 480V | 4 | - | |
DPD02DM44BProtection Relays & Systems | Carlo Gavazzi | 3PH MONITORING RELAY 240V | 4 | - | |
 777-575-KW/HP-P2Protection Relays & Systems | Littelfuse | 3-PHASE POWER MONITOR/500-600V | 8 | - | |
 SE-330-23-00Protection Relays & Systems | Littelfuse | GRND RES RELAY ETHERNET-DC SUP | In Stock | - | |
 MP8000Protection Relays & Systems | Littelfuse | MOTOR OVERLOAD PROTECTION 8000 | 6 | - | |
 EL731-14-00Protection Relays & Systems | Littelfuse | Electromechanical Relay 48VDC 24VAC 3PDT(129x96x48)mm Panel Earth Leakage Relay | In Stock | - | |
 SE-330AU-25-01Protection Relays & Systems | Littelfuse | MONITOR NGR 48V DUAL SC FBR K4 | In Stock | - | |
SE-330-26-00Protection Relays & Systems | Littelfuse | MONITOR NGR 48V DUAL RJ45 61850 | In Stock | - | |
SE-330HV-24-01Protection Relays & Systems | Littelfuse | MONITOR NGR HV 48V SC FBR/RJ45 | In Stock | - | |
 SE-703-0D-00Protection Relays & Systems | Littelfuse | MONITOR EARTH LEAKAGE | In Stock | - | |
SE-330AU-27-01Protection Relays & Systems | Littelfuse | MONITOR NGR 48V SC FBR/RJ45 | In Stock | - | |
SE-K2NProtection Relays & Systems | Omron Automation | RELAY MOTOR PROTECT 200/220/240V | In Stock | - | |
56273Protection Relays & Systems | Schneider Electric | EARTHLEAKAGE RELAY RH99P WITH MA | 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 | - | |
 900VPR-BL-U-CEProtection Relays & Systems | Selec Controls | 3-3W, 3-4W, UNDER / OVER VOLTAGE | In Stock | - |
.png?x-oss-process=image/format,webp/resize,h_32)
