Transmission & Distribution Relay Solutions
Ensure reliable electrical protection with advanced relays and monitoring devices, safeguarding power systems and equipment integrity.
Safeguard your power distribution networks with our comprehensive range of transmission distribution relays. Our comprehensive range features ground fault relays, phase/voltage loss relays, ground fault sensors, voltage/phase monitors, and permissive relays for all your transmission distribution relay needs. Whether you're safeguarding power distribution systems, monitoring critical electrical parameters, or ensuring equipment protection, our Transmission Distribution Relays provide the advanced functionality and reliability needed for optimal performance and safety in industrial environments. Shop now for cutting-edge transmission distribution relays to enhance your power system's reliability and safety.
Filter Results
WESTINGHOUSE
1956071
DISCONTINUED BY MANUFACTURER, RELAY, 0.50/1 AMP, 60 HZ
✓ IN STOCK!
Buy Surplus As Low As
$274.56
Repair Yours
$227.89
DEIF
RMV-112D-DELTA-450VAC-ND+ND-450VAC
PROTECTIVE VOLTAGE RELAY, RMV-112D, COUPLING: DELTA, MEASURING VOLTAGE: 450/260V, MODULE: 450V, SUPPLY: 450 VAC, RELAY B: NOR. DEENERGIZED, RELAY C: NORM. DEENERGIZED, UNDERVOLTAGE: 80-100%, ...
✓ IN STOCK!
Repair Yours
$300.00
DEIF
RMV-112D-DELTA-220VAC-ND+ND-220VAC
PROTECTIVE VOLTAGE RELAY, RMV-112D, COUPLING: DELTA, MEASURING VOLTAGE: 220/127V, MODULE: 220V, SUPPLY: 220VAC, RELAY B: NORM. DEENERGIZED, RELAY C: NORM. DEENERGIZED, UNDERVOLTAGE: 80-100%, ...
✓ IN STOCK!
Repair Yours
$300.00
DEIF
RMF-112D-440VAC-60HZ-ND+ND-440VAC
DISCONTINUED BY MANUFACTURER, FREQUENCY RELAY, TYPE RMF-112D, 440VAC, 60HZ, RELAY B NORM. DEENERGIZED, RELAY C NORM. DEENERGIZED, UNDERFREQUENCY 90-100%, OVERFREQUENCY 100-110%, 0-10S
✓ IN STOCK!
Buy Surplus As Low As
$334.60
Repair Yours
$324.81
GENERAL ELECTRIC
12IFC53A1A
DISCONTINUED BY MANUFACTURER, INVERSE TIME OVERCURRENT RELAY, IFC TYPE, NON-DIRECTIONAL SINGLE-PHASE, 50/60HZ RATING, 14 INPUT POINTS, TIME RELAY TEST BUTTON
✓ IN STOCK!
Buy Surplus As Low As
$357.61
Repair Yours
$300.00
GENERAL ELECTRIC
12CFD22B2A
DISCONTINUED BY MANUFACTURER,RELAY, HIGH SPEED DIFFERENTIAL, 5AMP, 60HZ, TYPE CFD
✓ IN STOCK!
Buy Surplus As Low As
$1,701.53
Repair Yours
$1,486.60
SIEMENS
FURNAS ELECTRIC CO
947PB10AG
DISCONTINUED BY MANUFACTURER, VOLTAGE MONITOR 240VAC 200-235V TRIP RANGE
✓ IN STOCK!
Buy Surplus As Low As
$93.50
CEE
RMS700
DISCONTINUED BY MANUFACTURER, VOLTAGE RELAY 1AMP 48VDC DIGITAL
✓ IN STOCK!
Buy Surplus As Low As
$600.00
Repair Yours
$498.00
SIEMENS
3UL0303-0EA
DISCONTINUED BY MANUFACTURER, DIFFERENTIAL RELAY, 230 VAC, 50/60 HZ, 0.03-3 AMP ADJUSTABLE, 0.02-1 SEC ADJUSTABLE TIME DELAY, LED INDICATOR, TEST AND RESET BUTTONS, SCREW CLAMP TERMINALS, DI ...
✓ IN STOCK!
Buy Surplus As Low As
$532.00
Repair Yours
$349.00
ASEA BROWN BOVERI
CM-IVN.S
COUPLING UNIT, VOLTAGE RANGE EXPANSION FOR CM-IWN.1, 690 VAC / 1000 VDC, 15-400 HZ, DIN RAIL MOUNT, HOUSING IP50 / TERMINALS IP20, (1SVR750669R9400)
✓ IN STOCK!
Repair Yours
$300.00
GOTRONIC
38-100A-U-RELAY
RELAY AND SOCKET UNDERSPEED CONTROL 115VAC
✓ IN STOCK!
Buy Surplus As Low As
$74.05
GOTRONIC
631103
DISCONTINUED BY MANUFACTURER, MOTION DETECTOR, UNDER/OVER SPEED DETECTOR, 120 VAC INPUT POWER, 50/60 HZ, OUTPUT TERMINALS: 10 AMP, 120 VAC RESISTIVE, SPEED RANGE: 200 TO 2000 PPM PROGRAMABLE ...
✓ IN STOCK!
Buy Surplus As Low As
$239.35
Repair Yours
$300.00
ASEA BROWN BOVERI
202T3004-UL
DISCONTINUED BY MANUFACTURER, MONITOR, GROUND FAULT, 24/32VDC
✓ IN STOCK!
Buy Surplus As Low As
$138.53
Repair Yours
$300.00
BENDER
B91067010
INSULATION MONITORING DEVICE, INTEGRATED DISPLAY, NOMINAL SYSTEM VOLTAGE RANGE: 0-690 VAC (1-460 HZ) / 0-1000 VDC, SUPPLY: 24-240 VAC (50-400 HZ) / 24-240 VDC, (ISO685-D)
✓ IN STOCK!
Repair Yours
$2,430.00
SCHNEIDER ELECTRIC
MERLIN GERIN
50745
STANDARD UNLATCHED RELAY 110-130VAC 50/60HZ
✓ IN STOCK!
Buy Surplus As Low As
$304.00
Repair Yours
$300.00
SCHNEIDER ELECTRIC
SQUARE D
56327
CURRENT PROTECTION RELAY, VIGIREX RH10M, 1 AMP, 120 VAC, DIN RIAL MOUNT
✓ IN STOCK!
Repair Yours
$811.67
SCHNEIDER ELECTRIC
SQUARE D
GC-200D
DISCONTINUED BY MANUFACTURER, GROUND FAULT RELAY, 120 VAC, 24 VDC, DIN RAIL MOUNT, 5A/10A TRIP ALARM
✓ IN STOCK!
Buy Surplus As Low As
$1,505.11
Repair Yours
$1,249.24
SCHNEIDER ELECTRIC
TELEMECANIQUE
RM4TR32
DISCONTINUED BY MANUFACTURER, PHASE FAILURE RELAY, 300V, 5A, RM4,50/60HZ, REPLACED BY RM22TR33
✓ IN STOCK!
Buy Surplus As Low As
$358.18
FW MURPHY
UVR505
DISCONTINUED BY MANUFACTURER, RELAY UNDER VOLTAGE, FRONT STATUS LEDS, 12 PORTS
✓ IN STOCK!
Buy Surplus As Low As
$311.00
Repair Yours
$300.00
DEIF
RMV-112D-DELTA-440VAC-NE+ND-440VAC
PROTECTIVE VOLTAGE RELAY, RMV-112D, COUPLING: DELTA, MEASURING VOLTAGE: 440/254V, MODULE: 440V, SUPPLY: 440VAC, RELAY B: NOR. ENERGIZED, RELAY C: NORM. DEENERGIZED, UNDERVOLTAGE: 80-100%, OV ...
✓ IN STOCK!
Repair Yours
$300.00
DEIF
RMC-142D-1A-ND-ND-1S-20S-24VDC
DISCONTINUED BY MANUFACTURER, STATOR EARTH FAULT RELAY, TYPE: RMC-142D, ORDER NO: 400022308.10, MEAS CURRENT: 1A, MODULE: 1A, SCALE: 1, SUPPLY: 24VDC, T1: 1S, T2: 20S, RELAY B: NORM. DEENERG ...
✓ IN STOCK!
Buy Surplus As Low As
$233.97
Repair Yours
$300.00
TELE CONTROLS
E1PF480Y/277VSY01
PHASE LOSS MONITOR, PHASE BALANCE, PHASE ROTATION, PHASE SEQUENCE 3-PH, 208-380V AC, 1 CO, SPDT RELAY OUTPUT, LED INDICATORS, ADJUSTABLE PHASE BALANCE
✓ IN STOCK!
Repair Yours
$300.00
SCHWEITZER ENGINEERING
SEL-251-251000-4556UHGB
DISCONTINUED BY MANUFACTURER, DISTRIBUTION RELAY, SEL-251, PHASE OVERCURRENT RELAY, VOLTAGE CONTROL, GROUND OVERCURRENT, FAULT LOCATOR, SELOGIC CONTROL INPUT / 125 VDC, POWER SUPPLY / 15 W M ...
✓ IN STOCK!
Buy Surplus As Low As
$107.07
Repair Yours
$300.00
SCHWEITZER ENGINEERING
SEL-311B-0311B00H23254X1
PROTECTION AND AUTOMATION SYSTEM, SEL-311B, 120VAC, 50/60HZ, 25WATT
✓ IN STOCK!
Repair Yours
$1,140.22
GENERAL ELECTRIC
MULTILIN
350-E-P5-G5-H-E-E-N-M-1E-D-N
DISCONTINUED BY MANUFACTURER, FEEDER PROTENCTION SYSTEM, SERIES 3, 125-250VDC, 120-240VAC, 50/60HZ, 36VA
✓ IN STOCK!
Buy Surplus As Low As
$3,469.19
Repair Yours
$2,908.94
DOLD
IK9173.11/030 DC24V 0,7-1,0UN4%
UNDERVOLTAGE RELAY, 1 PHASE, NOMINAL VOLTAGE: 24 VDC, TIME DELAY: 0.5-20 S, RESPONSE VALUE: 0.7 - 1 UN 4%
✓ IN STOCK!
Repair Yours
$401.26
2N
9159010
DISCONTINUED BY MANUFACTURER, SECURITY RELAY, 30 VAC/DC, 1 AMP, 12 V OUTPUT 700 MAMP OUTPUT DC, PASSIVE SWITCH, NO/NC CONTACT FORM
✓ IN STOCK!
Buy Surplus As Low As
$157.97
Repair Yours
$300.00
BENDER
RCM465Y-13
DISCONTINUED BY MANUFACTURER,GROUND FAULT RELAY, 30-300MA ,RESPONSE 0-1S, 90-132V
✓ IN STOCK!
Buy Surplus As Low As
$536.79
Repair Yours
$424.00
TELE CONTROLS
G2UM300VL20
VOLTAGE PROTECTION MONITORING RELAY, 1-PH, 30V - 60V - 300V AC/DC RANGES, MULTIFUNCTION, 2 CO, DPDT RELAY OUTPUT, LED INDICATORS, ADJUSTABLE THRESHOLDS, POWER SUPPLY PROTECTOR, IDEAL FOR BAT ...
✓ IN STOCK!
Repair Yours
$300.00
MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
AC-2020
COMPRESSOR PROTECTOR, 3 PHASE MONITOR
✓ IN STOCK!
Repair Yours
$300.00
MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
CMD-120-ASE-20
CURRENT MONITOR RELAYS, UNIVERSAL, AC, CMD MODEL, 120 V AC, 50/60 HZ, CURRENT TRIP POINTS - 4-20 AMP ADJ. / MAX - 20 AMP, DPDT, AUTOMATIC RESET
✓ IN STOCK!
Repair Yours
$300.00
MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
CMG-0100-28
CURRENT MONITORING RELAY, CMG SERIES, 240 V AC, SPST - N.O., 5 AMP, QC TABS, PANEL MOUNT, CURRENT TRIP POINT - 28 AMPS
✓ IN STOCK!
Repair Yours
$300.00
MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
CMI-120-ASE-1
OVERCURRENT MONITOR RELAY, AC, W/ MANUAL RESET, CMI MODEL, OUTPUT - 10 AMPS @ 120 V AC - RESISTIVE, DPDT, CONTROL VOLTAGE - 120 V AC, 50/60 HZ, CURRENT TRIP POINTS - 0.2-1 AMP
✓ IN STOCK!
Repair Yours
$300.00
MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
CMI-120-ASE-5
OVERCURRENT MONITOR RELAY, AC, W/ MANUAL RESET, CMI MODEL, OUTPUT - 10 AMPS @ 120 V AC - RESISTIVE, DPDT, CONTROL VOLTAGE - 120 V AC, 50/60 HZ, CURRENT TRIP POINTS - 1-5 AMP
✓ IN STOCK!
Repair Yours
$300.00
MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
CML-120-ASE-5
OVERCURRENT MONITOR RELAY, AC, W/ MANUAL RESET, CML MODEL, OUTPUT - 10 AMPS @ 120 V AC - RESISTIVE, DPDT, CONTROL VOLTAGE - 120 V AC/DC, 50/60 HZ, SURFACE MOUNT ENCLOSURE, CURRENT TRIP POINT ...
✓ IN STOCK!
Repair Yours
$300.00
MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
CMO-120-ASA-10
OVERCURRENT MONITOR RELAY, AC, W/ MANUAL RESET, CMO MODEL, OUTPUT - 10 AMPS @ 120 V AC - RESISTIVE, DPDT, CONTROL VOLTAGE - 120 V AC/DC, 50/60 HZ, PLUG-IN ENCLOSURE, CURRENT TRIP POINTS - 2- ...
✓ IN STOCK!
Repair Yours
$300.00
MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
CMO-120-ASE-20
OVERCURRENT MONITOR RELAY, AC, W/ MANUAL RESET, CMO MODEL, OUTPUT - 10 AMPS @ 120 V AC - RESISTIVE, DPDT, CONTROL VOLTAGE - 120 V AC/DC, 50/60 HZ, SURFACE MOUNT ENCLOSURE, CURRENT TRIP POINT ...
✓ IN STOCK!
Repair Yours
$300.00
MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
CMO-120-ASE-5
OVERCURRENT MONITOR RELAY, AC, W/ MANUAL RESET, CMO MODEL, OUTPUT - 10 AMPS @ 120 V AC - RESISTIVE, DPDT, CONTROL VOLTAGE - 120 V AC/DC, 50/60 HZ, SURFACE MOUNT ENCLOSURE, CURRENT TRIP POINT ...
✓ IN STOCK!
Repair Yours
$300.00
MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
CMU-120-ASA-1
OVERCURRENT MONITOR RELAY, AC, W/ MANUAL RESET, CMU MODEL, 10 AMPS RES @ 120 V AC OUTPUT, DPDT, 120 V AC/DC CONTROL, 50/60 HZ, CURRENT TRIP POINTS - 1-5 AMP, 11-PIN, PLUG-IN MOUNT
✓ IN STOCK!
Repair Yours
$200.00
MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
CMU-120-ASE-20
OVERCURRENT MONITOR RELAY, AC, W/ MANUAL RESET, CMU MODEL, OUTPUT - 10 AMPS @ 120 V AC - RESISTIVE, DPDT, CONTROL VOLTAGE - 120 V AC/DC, 50/60 HZ, SURFACE MOUNT ENCLOSURE, CURRENT TRIP POINT ...
✓ IN STOCK!
Repair Yours
$300.00
MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
CBA-120-ALE-10
MONITOR / RELAY, AC OVER AND UNDER CURRENT BAND, 2 - 10 AMP ADJUSTABLE UNDER CURRENT RANGE, 2-10 AMP ADJUSTABLE OVER CURRENT RANGE, 120 VAC, 50/60 HZ
✓ IN STOCK!
Repair Yours
$300.00
ASEA BROWN BOVERI
ABB ROBOTICS
SPAJ 135 C-AA
DISCONTINUED BY MANUFACTURER, COMBINED OVERCURRENT AND EARTH-FAULT RELAY, 80...265 VAC, 50/60 HZ, SCREW TERMINAL
✓ IN STOCK!
Buy Surplus As Low As
$1,064.00
Repair Yours
$600.00
SCHWEITZER ENGINEERING
SEL321-321124256HNB554
PHASE AND GROUND DISTANCE RELAY, DIRECTIONAL OVERCURRENT RELAY, SEL-321, FAULT LOCATOR, 125 VDC LOGIC INPUT, 5 AMP, 25W MAX, 85-264 VAC / 85-350 VDC POWER SUPPLY, 50/60 HZ, ABC ROTATION
✓ IN STOCK!
Repair Yours
$1,805.35
SCHNEIDER ELECTRIC
MERLIN GERIN
CM4000MG
DISCONTINUED BY MANUFACTURER, CIRCUIT MONITOR, 4000 SERIES, POWERLOGIC, UP TO 32MB MEMORY, 240 VAC, 300 VDC, 96 MA
✓ IN STOCK!
Buy Surplus As Low As
$4,800.00
Repair Yours
$4,000.00
SEL
071001D6X9X71870200
MOTOR PROTECTION RELAY, POWER SUPPLY 110-250 VDC, 110-240 VAC 50/60 HZ, 40 VA/15W, ENCLOSURE TYPE 12, TERMINAL PROTECTION
✓ IN STOCK!
Repair Yours
$1,250.29
TIME MARK CORP
A257B-400HZ
3-PHASE-MONITORS,480VAC, SIZE 3.52IN X 2.44IN X 1.75IN
✓ IN STOCK!
Repair Yours
Contact Us
MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
UOA-0313-DLA
DISCONTINUED BY MANUFACTURER, SINGLE PHASE UNDER VOLTAGE MONITOR, UOA SERIES, UOA-0313, STYLE A, 5-10 VDC SUPPLY VOLTAGE, SENSING VOLTAGE: 50 TO 50 VDC, SUPPLY VOLTAGE: 120 VAC, CONTACTS: 10 ...
✓ IN STOCK!
Buy Surplus As Low As
$64.50
Repair Yours
$300.00