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.
Rockwell Disclaimer: The product is used surplus. Radwell is not an authorised surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorised dealers. Because Radwell is not an authorised distributor of this product, the Original Manufacturer’s warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, Radwell makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. Radwell also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. Radwell also makes no representations as to your right to install any such firmware on the product. Radwell will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.
Filter Results
GOTRONIC
38-100A-U-RELAY
RELAY AND SOCKET UNDERSPEED CONTROL 115VAC
✓ IN STOCK!
£58.23
Price with VAT:
£69.87
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!
£178.78
Price with VAT:
£214.54
ASEA BROWN BOVERI
302B1017UL
GROUND FAULT SENSOR 10IN 17IN 600V
✓ IN STOCK!
£90.79
Price with VAT:
£108.95
SCHNEIDER ELECTRIC
MERLIN GERIN
50745
STANDARD UNLATCHED RELAY 110-130VAC 50/60HZ
✓ IN STOCK!
£174.11
Price with VAT:
£208.93
SCHNEIDER ELECTRIC
TELEMECANIQUE
RM4TR32
DISCONTINUED BY MANUFACTURER, PHASE FAILURE RELAY, 300V, 5A, RM4,50/60HZ, REPLACED BY RM22TR33
✓ IN STOCK!
£74.78
Price with VAT:
£89.74
FW MURPHY
UVR505
DISCONTINUED BY MANUFACTURER, RELAY UNDER VOLTAGE, FRONT STATUS LEDS, 12 PORTS
✓ IN STOCK!
£178.11
Price with VAT:
£213.73
ASEA BROWN BOVERI
DS201TK32A30
RCBO, 1P+N, 32A, 30MA SENSITIVITY
✓ IN STOCK!
£331.61
Price with VAT:
£397.93
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!
£121.82
Price with VAT:
£146.18
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!
£158.30
Price with VAT:
£189.96
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!
£124.71
Price with VAT:
£149.65
Repair Yours
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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!
£149.88
Price with VAT:
£179.86
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!
£213.91
Price with VAT:
£256.69
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!
£232.54
Price with VAT:
£279.05
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!
£143.61
Price with VAT:
£172.33
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!
£210.17
Price with VAT:
£252.20
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!
£262.23
Price with VAT:
£314.68
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!
£171.91
Price with VAT:
£206.29
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!
£237.68
Price with VAT:
£285.22
MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
SLA-120-ASA
PHASE MONITOR/RELAY, 3-PHASE, 95-130V ADJ., 10A, PLUG-IN, SLA SERIES, 120VAC, SPDT (1 FORM C)
✓ IN STOCK!
£110.77
Price with VAT:
£132.92
Repair Yours
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MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
SLA-440-ALER
PHASE MONITORING RELAY, 430-480 V, SPDT, 3A/600VAC, SCREW TERMINAL, SLA SERIES
✓ IN STOCK!
£310.05
Price with VAT:
£372.06
MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
SLA-440-ASA
PHASE SEQUENCE AND LOSS MONITOR, RELAY, E-MECH, SPDT, CUR-RTG 10 AMP, CTRL-V 430-480 VAC, VOL-RTG 240 VAC, 8 PIN
✓ IN STOCK!
£110.04
Price with VAT:
£132.05
Repair Yours
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MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
SLA-460-AFE
PHASE MONITOR/RELAY, 460VAC , 3 PHASE
✓ IN STOCK!
£228.84
Price with VAT:
£274.61
MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
SLB-400-ALEA
PHASE UNBALANCE & LOSS & PHASE SEQUENCE MONITOR/RELAY, LED STATUS INDICATOR, 3.25 IN X 4 IN X 3 IN, MOUNTING:SURFACE, OUTPUT RELAY:SPDT
✓ IN STOCK!
£113.83
Price with VAT:
£136.59
MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
SLD-230-ALE
PHASE VOLTAGE MONITOR, 208/240 VAC, 185-230 V UNDER VOLTAGE DROPOUT RANGE, 3 VA, 5 VAC HYSTERESIS, DPDT OUTPUT
✓ IN STOCK!
£377.16
Price with VAT:
£452.59
MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
SLD-440-ASA
PHASE VOLTAGE MONITOR, SLD SERIES, 440/480 VAC, 370-460 V UNDERVOLTAGE DROPOUT RANGE, 3 VA, 10 VA, 8 PIN
✓ IN STOCK!
£193.50
Price with VAT:
£232.20
MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
PBC-120/208-ALE
PHASE VOLTAGE MONITORS, WYE, ADJUSTABLE 3 PHASE-VOLTAGE MONITOR
✓ IN STOCK!
£274.28
Price with VAT:
£329.14
MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
PBC-120-ALE
PHASE VOLTAGE MONITORS
✓ IN STOCK!
£394.66
Price with VAT:
£473.59
MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
PBC-440-ALE
PHASE VOLTAGE MONITORS, 3 PHASE-VOLTAGE MONITOR, DELTA, 390V-540V
✓ IN STOCK!
£236.86
Price with VAT:
£284.23
MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
PBC-480-ALE
PHASE VOLTAGE MONITOR,3 PHASE, 480 VAC, DPDT OUTPUT RELAY
✓ IN STOCK!
£188.20
Price with VAT:
£225.83
MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
PBD-120-ALE
PHASE SEQUENCE AND VOLTAGE MONITOR, SERIES PBD, NO OF PHASES3, VOLTAGE SUPPORTED 120 VOLTS, HI PWR (OVER VLTG) TRIP , LO PWR (UNDER VLTG) TRIP, TYPE OF DISPLAY LED STATUS INDICATOR
✓ IN STOCK!
£414.47
Price with VAT:
£497.36
MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
PRA-100-AFN-400
PHASE SEQUENCE MONITOR RELAY 10AMP 208-480VAC
✓ IN STOCK!
£36.46
Price with VAT:
£43.75
MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
SUA-440-ASA
MONITORING RELAY, OPERATING VOLTAGE 430-480 ADJUSTABLE, 10 AMPS, ADJUSTMENT SCREW, OUTPUT RESISTIVE @ 240 VAC, 8 PIN OCTAL, SUA SERIES
✓ IN STOCK!
£105.87
Price with VAT:
£127.04
Repair Yours
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MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
UOA-110-DLA
VOLTAGE MONITORING RELAY, UOA SERIES, 92-125 VDC DROP-OUT, 97-130 VDC PICK-UP, 5 V HYSTERESIS, LOCKNUT ADJUSTMENT
✓ IN STOCK!
£113.70
Price with VAT:
£136.44
Repair Yours
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MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
UOA-120-AKA
VOLTAGE MONITORING RELAY, UOA SERIES, 97-130 VAC DROP-OUT, 102-135 VAC PICK-UP, KNOB ADJUSTMENTS, DPDT, 8-PIN OCTAL
✓ IN STOCK!
£85.03
Price with VAT:
£102.04
Repair Yours
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MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
UOA-120-ALA
VOLTAGE MONITORING RELAY, UOA SERIES, 97-130 VAC DROP-OUT, 102-135 VAC PICK-UP, 5 V HYSTERESIS, DPDT, LOCKNUT, 8-PIN OCTAL
✓ IN STOCK!
£126.31
Price with VAT:
£151.57
Repair Yours
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REGAL REXNORD
UNICO
303-237
DISCONTINUED BY MANUFACTURER, RELAY MODULE, LNO CONVERTER, INTERFACE ADAPTER FIBER OPTIC
✓ IN STOCK!
£254.10
Price with VAT:
£304.92
SCHNEIDER ELECTRIC
SQUARE D
PR-101-PLR
DISCONTINUED BY MANUFACTURER, RELAY PHASE LOSS/REVERSAL 5AMP 120VAC .01OHM 60HZ
✓ IN STOCK!
£71.10
Price with VAT:
£85.31
SCHNEIDER ELECTRIC
TELEMECANIQUE
RM3TR112VS7
DISCONTINUED BY MANUFACTURER, VOLTAGE LOSS RELAY, 3 PHASE, 380-420 VAC, 50/60 HZ, DIN RAIL MOUNT
✓ IN STOCK!
£200.68
Price with VAT:
£240.82
SCHNEIDER ELECTRIC
SQUARE D
S48891
GROUND FAULT INTERFACE MODULE, USED ON: ,M/P/R FRAME, NS630B, NS3200 ,ELECTRONIC TRIP CIRCUIT BREAKER
✓ IN STOCK!
£1,500.58
Price with VAT:
£1,800.70
FW MURPHY
OFR500
DISCONTINUED BY MANUFACTURER, RELAY OVER FREQUENCY, FRONT STATUS LEDS, 12 PORTS
✓ IN STOCK!
£178.11
Price with VAT:
£213.73
SIEMENS
3RQ3118-1AB00
OUTPUT COUPLER, WITH PLUG-IN RELAY, 1 CHANGE-OVER CONTACT SCREW TERMINAL, 6 AMP, 24 VAC/DC, 50/60 HZ, DIN RAIL MOUNT
✓ IN STOCK!
£14.00
Price with VAT:
£16.80
INGERSOLL RAND
TRANE
RLY3715
START RELAY, SPST 35 AMP, REPLACES RLY1097, HVAC PARTS, SAME AS 3ARR3-J4A4, B100201P06,RLY1097,RLY-01097,RLY3715
✓ IN STOCK!
£26.97
Price with VAT:
£32.36
Repair Yours
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ASEA BROWN BOVERI
1495B30A22
DISCONTINUED BY MANUFACTURER, VOLTAGE RELAY, 120V, 250VDC, IVS 55-140VAC, TYPE CV7
✓ IN STOCK!
£360.01
Price with VAT:
£432.01
MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
ARA-120-AFE
RELAY, ARA SERIES, ALTERNATING RELAY, SURFACE-MOUNT, TRIPLEXOR, 120 VAC, 10 AMP
✓ IN STOCK!
£211.30
Price with VAT:
£253.56
MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
AC-301-440
THREE PHASE MONITOR, AC-301 SERIES, DELAY-ON-MAKE, 430-480 VAC OPERATING, 2 SECOND DELAY ON DROP OUT
✓ IN STOCK!
£192.12
Price with VAT:
£230.54
MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
CMI-120-ASE-20
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 - 4-20 AMP
✓ IN STOCK!
£178.26
Price with VAT:
£213.91
MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
CMO-120-ASA-1
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 - 0. ...
✓ IN STOCK!
£277.09
Price with VAT:
£332.51
MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
CMO-120-ASE-10
OVERCURRENT MONITOR RELAY, CMO SERIES, 24-120 V AC/DC, 50/60 HZ, SURFACE MOUNT, 2-10 AMP ADJUSTABLE TRIP POINTS
✓ IN STOCK!
£226.75
Price with VAT:
£272.10
