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    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.

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    Results 401-450 of 438.
    SCHNEIDER ELECTRIC P122B00Z112CD0

    SCHNEIDER ELECTRIC

    P122B00Z112CD0

    DISCONTINUED BY MANUFACTURER, FAULT PROTECTION RELAY, 3 PHASE, EARTH AND OVERCURRENT, 0.01-8 ION, DIGITAL INPUT VOLTAGE: 24-250 VDC/24-240 VAC, AUXILIARY VOLTAGE: 24-250 VDC/48-240 VC, COMMU ...
    ✓ IN STOCK!
    Buy Surplus As Low As £523.06 Price with VAT: £627.67
    £523.06 Price with VAT: £627.67
    Repair Yours £367.28 Price with VAT: £440.74
    MINILEC USP-D1

    MINILEC

    USP-D1

    PHASE FAILURE RELAY, 415 VAC, 50/60 HZ, 1 CO OUTPUT, PHASE SEQUENCE, CONTACT RATING 5 A @ 230 VAC
    ✓ IN STOCK!
    £186.45 Price with VAT: £223.74 Buy Surplus As Low As £90.62 Price with VAT: £108.74
    £90.62 Price with VAT: £108.74
    Repair Yours Contact Us
    ASEA BROWN BOVERI NBRA-656C

    ASEA BROWN BOVERI

    NBRA-656C

    DISCONTINUED BY MANUFACTURER, UNIVERSAL BRAKE CHOPPER, 6 OHM, 2400 KJ, 6 KW, 400 VAC
    ✓ IN STOCK!
    Buy Surplus As Low As £311.35 Price with VAT: £373.62
    £311.35 Price with VAT: £373.62
    Repair Yours £271.34 Price with VAT: £325.61
    TSUDAKOMA 626352CB

    TSUDAKOMA

    626352CB

    DISCONTINUED BY MANUFACTURER, VOLTAGE CONTROLLER, -5 TO +5
    ✓ IN STOCK!
    Buy Surplus As Low As £515.28 Price with VAT: £618.34
    £515.28 Price with VAT: £618.34
    Repair Yours £449.06 Price with VAT: £538.87
    SCHNEIDER ELECTRIC CM4000MG

    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 £2,213.99 Price with VAT: £2,656.79
    £2,213.99 Price with VAT: £2,656.79
    Repair Yours £1,837.61 Price with VAT: £2,205.13
    ASEA BROWN BOVERI SPAJ 135 C-AA

    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 £583.05 Price with VAT: £699.66
    £583.05 Price with VAT: £699.66
    Repair Yours £451.01 Price with VAT: £541.21
    DOLD IK9173.11/030 DC24V 0,7-1,0UN4%

    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!
    £116.00 Price with VAT: £139.20 Buy Surplus As Low As £77.00 Price with VAT: £92.40
    £77.00 Price with VAT: £92.40
    Repair Yours Contact Us
    TELE CONTROLS E1PF480Y/277VSY01

    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!
    £101.05 Price with VAT: £121.26 Buy Surplus As Low As £40.33 Price with VAT: £48.40
    £40.33 Price with VAT: £48.40
    Repair Yours Contact Us
    ASCO 214B69-120VAC

    ASCO

    214B69-120VAC

    DISCONTINUED BY MANUFACTURER, UNDER VOLTAGE MONITOR, 120 V AC, 50/60 HZ, 114 V PICK UP, 102 V DROP OUT
    ✓ IN STOCK!
    Buy Surplus As Low As £84.00 Price with VAT: £100.80
    £84.00 Price with VAT: £100.80
    Repair Yours Contact Us
    ASCO 214B69-480VAC

    ASCO

    214B69-480VAC

    DISCONTINUED BY MANUFACTURER, UNDER VOLTAGE MONITOR, 480 VAC, 50/60 HZ, 456V PICK UP, 408V DROP OUT
    ✓ IN STOCK!
    Buy Surplus As Low As £395.31 Price with VAT: £474.37
    £395.31 Price with VAT: £474.37
    Repair Yours £310.05 Price with VAT: £372.06
    ASEA BROWN BOVERI CM-PVE

    ASEA BROWN BOVERI

    CM-PVE

    PHASE MONITORING RELAY, 4 AMP, 400 V, 3 KV, 1 NO, WITH NEUTRAL CONNECTION, POWERED BY MEASURING CIRCUIT, FOR MONITORING OF 1-3 PHASE OVER- AND UNDERVOLTAGE, (1SVR550870R9400)
    ✓ IN STOCK!
    £41.00 Price with VAT: £49.20 Buy Surplus As Low As £17.77 Price with VAT: £21.32
    £17.77 Price with VAT: £21.32
    SCHWEITZER ENGINEERING SEL-751A-751A51A0X0X71850000

    SCHWEITZER ENGINEERING

    SEL-751A-751A51A0X0X71850000

    DISCONTINUED BY MANUFACTURER, FEEDER PROTECTION RELAY, MODEL SEL-751A, 20 W / 40 VA, 110-250 V, 50/60 HZ
    ✓ IN STOCK!
    Buy Surplus As Low As £1,867.44 Price with VAT: £2,240.93
    £1,867.44 Price with VAT: £2,240.93
    Repair Yours £1,627.48 Price with VAT: £1,952.98
    ASEA BROWN BOVERI 411T4175-HF

    ASEA BROWN BOVERI

    411T4175-HF

    DISCONTINUED BY MANUFACTURER, RELAY, UNDERVOLTAGE PHASE SEQUENCE, 27N TYPE, CIRCUIT SHIELD, DEFINITE CURVE, 0-10 SECOND, 2-C, SINGLE PHASE, 60-110V TAP RANGE, 150V MAX, 50/60 HZ, CONTROL 48/ ...
    ✓ IN STOCK!
    Buy Surplus As Low As £1,039.61 Price with VAT: £1,247.53
    £1,039.61 Price with VAT: £1,247.53
    Repair Yours £906.01 Price with VAT: £1,087.21
    MARSH BELLOFRAM SAL-575-ALE

    MARSH BELLOFRAM

    ATC DIVERSIFIED ELECTRONICS

    SAL-575-ALE

    DISCONTINUED BY MANUFACTURER, PHASE MONITOR, 575 V AC, 50/60 HZ, 3 A, 600 V AC RES. RATED CONTACTS, LED INDICATOR, SCREW CLAMP TERMINALS
    ✓ IN STOCK!
    Buy Surplus As Low As £138.62 Price with VAT: £166.34
    £138.62 Price with VAT: £166.34
    Repair Yours £200.00 Price with VAT: £240.00
    INVENSYS P0927AG

    INVENSYS

    FOXBORO

    P0927AG

    DISCONTINUED BY MANUFACTURER, CONTROL VOLTAGE MONITOR, I/O MONITOR, 32 X CHANNELS, 16 X DIGITAL INPUTS, 16 X DIGITAL OUTPUTS, OPERATING TEMPERATURE: -20 TO 70 C, RELATIVE HUMIDITY: 5 TO 95% ...
    ✓ IN STOCK!
    Buy Surplus As Low As £764.14 Price with VAT: £916.97
    £764.14 Price with VAT: £916.97
    Repair Yours £704.70 Price with VAT: £845.64
    ICM ICM492-LF

    ICM

    ICM492-LF

    SINGLE PHASE MONITOR, 80-300V
    ✓ IN STOCK!
    £107.75 Price with VAT: £129.30 Buy Surplus As Low As £69.65 Price with VAT: £83.58
    £69.65 Price with VAT: £83.58
    Repair Yours Contact Us
    ALLEN BRADLEY 809-B20E

    ALLEN BRADLEY

    809-B20E

    809-B20E, 809B20E, INSTANTANEOUS TRIP CURRENT RELAY, 130AMP
    ✓ IN STOCK!
    Buy Surplus As Low As £1,245.64 Price with VAT: £1,494.77
    £1,245.64 Price with VAT: £1,494.77
    Repair Yours £903.39 Price with VAT: £1,084.07
    DOLD AN5970

    DOLD

    AN5970

    FAULT ANNUNCIATOR, 50/60HZ, 24V
    ✓ IN STOCK!
    £831.87 Price with VAT: £998.24 Buy Surplus As Low As £455.77 Price with VAT: £546.92
    £455.77 Price with VAT: £546.92
    Repair Yours £348.42 Price with VAT: £418.10
    GENERAL ELECTRIC 12HAA15H1F

    GENERAL ELECTRIC

    12HAA15H1F

    AUXILIARY RELAY, 24VDC,AVAILABLE, SURPLUS, NEVER USED, 2 YEAR RADWELL WARRANTY
    ✓ IN STOCK!
    Buy Surplus As Low As £395.31 Price with VAT: £474.37
    £395.31 Price with VAT: £474.37
    Repair Yours £310.05 Price with VAT: £372.06
    HONEYWELL R720C-1009

    HONEYWELL

    R720C-1009

    HONEYWELL , R720C-1099, R720C1099, RECEIVER RELAY, 120/208/240/277VAC, 50/60HZ
    ✓ IN STOCK!
    £25.35 Price with VAT: £30.42 Buy Surplus As Low As £12.32 Price with VAT: £14.78
    £12.32 Price with VAT: £14.78
    Repair Yours Contact Us
    TE CONNECTIVITY KUHP-11D17-48

    TE CONNECTIVITY

    AMP

    KUHP-11D17-48

    RELAY, 48VDC, 3/4 HP, 120 VAC, 20 AMP
    ✓ IN STOCK!
    £15.03 Price with VAT: £18.04 Buy Surplus As Low As £8.81 Price with VAT: £10.57
    £8.81 Price with VAT: £10.57
    Repair Yours Contact Us
    ASEA BROWN BOVERI 64418-1V

    ASEA BROWN BOVERI

    BALDOR RELIANCE

    64418-1V

    RELAY
    ✓ IN STOCK!
    £1,480.90 Price with VAT: £1,777.08 Buy Surplus As Low As £774.90 Price with VAT: £929.88
    £774.90 Price with VAT: £929.88
    Repair Yours £621.30 Price with VAT: £745.56
    MARSH BELLOFRAM VBA-208-ALA

    MARSH BELLOFRAM

    ATC DIVERSIFIED ELECTRONICS

    VBA-208-ALA

    SINGLE PHASE VOLTAGE BAND MONITOR/RELAYS
    ✓ IN STOCK!
    £406.84 Price with VAT: £488.21 Buy Surplus As Low As £309.20 Price with VAT: £371.04
    £309.20 Price with VAT: £371.04
    Repair Yours £200.00 Price with VAT: £240.00
    MARSH BELLOFRAM SUA-230-ALA

    MARSH BELLOFRAM

    ATC DIVERSIFIED ELECTRONICS

    SUA-230-ALA

    PHASE MONITOR RELAY, SPDT, 10 AMP AT 240 VAC, 190-270 V ADJUSTABLE, LOCK SHAFT, OCTAL PLUG IN
    ✓ IN STOCK!
    £248.68 Price with VAT: £298.42 Buy Surplus As Low As £120.86 Price with VAT: £145.03
    £120.86 Price with VAT: £145.03
    Repair Yours £200.00 Price with VAT: £240.00
    MARSH BELLOFRAM PRA-100-AFA

    MARSH BELLOFRAM

    ATC DIVERSIFIED ELECTRONICS

    PRA-100-AFA

    PHASE SEQUENCE MONITOR, 208-480VAC SUPPLY, CONTACTS 10A AT 240VAC, 8PIN SOCKET
    ✓ IN STOCK!
    £226.67 Price with VAT: £272.00 Buy Surplus As Low As £172.39 Price with VAT: £206.87
    £172.39 Price with VAT: £206.87
    Repair Yours £200.00 Price with VAT: £240.00
    MARSH BELLOFRAM PBD-440-ALE

    MARSH BELLOFRAM

    ATC DIVERSIFIED ELECTRONICS

    PBD-440-ALE

    3 PHASE SEQUENCE & VOLTAGE BAND MONITOR/RELAYS, MAX VOLTAGE 550 VAC, ADJUSTABLE RANGES 390-480 UNDER/440-540 OVER, DPDT, CONTACT RATING 600 VAC, AUTOMATIC RESET
    ✓ IN STOCK!
    £433.54 Price with VAT: £520.25 Buy Surplus As Low As £248.68 Price with VAT: £298.42
    £248.68 Price with VAT: £298.42
    Repair Yours £212.59 Price with VAT: £255.11
    MARSH BELLOFRAM SLM-440-ASE

    MARSH BELLOFRAM

    ATC DIVERSIFIED ELECTRONICS

    SLM-440-ASE

    PHASE MONITOR, TIME DELAY, 440-490 VAC, 50/60 HZ, 3 AMP
    ✓ IN STOCK!
    £540.64 Price with VAT: £648.77 Buy Surplus As Low As £411.11 Price with VAT: £493.33
    £411.11 Price with VAT: £493.33
    Repair Yours £223.38 Price with VAT: £268.06
    MARSH BELLOFRAM SLM-230-ASE

    MARSH BELLOFRAM

    ATC DIVERSIFIED ELECTRONICS

    SLM-230-ASE

    PHASE MONITOR, MICROPROCESSOR CONTROLLED, 200-250 VAC, CONTACTS: 10 AMP @ 240 VAC
    ✓ IN STOCK!
    £475.36 Price with VAT: £570.43 Buy Surplus As Low As £280.96 Price with VAT: £337.15
    £280.96 Price with VAT: £337.15
    Repair Yours £237.24 Price with VAT: £284.69
    MARSH BELLOFRAM SLE-440-ALE

    MARSH BELLOFRAM

    ATC DIVERSIFIED ELECTRONICS

    SLE-440-ALE

    RELAY, PHASE LOSS, UNBALANCE & UNDER VOLTAGE RELAY
    ✓ IN STOCK!
    £535.51 Price with VAT: £642.61 Buy Surplus As Low As £217.92 Price with VAT: £261.50
    £217.92 Price with VAT: £261.50
    Repair Yours £200.00 Price with VAT: £240.00
    MARSH BELLOFRAM SLA-480-AFE

    MARSH BELLOFRAM

    ATC DIVERSIFIED ELECTRONICS

    SLA-480-AFE

    PHASE VOLTAGE MONITOR, RELAY, SLA SERIES, 480 VAC, SURFACE MOUNTED
    ✓ IN STOCK!
    £581.72 Price with VAT: £698.06 Buy Surplus As Low As £442.35 Price with VAT: £530.82
    £442.35 Price with VAT: £530.82
    Repair Yours £201.88 Price with VAT: £242.26
    MARSH BELLOFRAM SLA-440-ALE

    MARSH BELLOFRAM

    ATC DIVERSIFIED ELECTRONICS

    SLA-440-ALE

    PHASE MONITORING/RELAY, PHASE SEQUENCE/LOSS MONITOR, 430-480 VAC, 3 PHASE SUPPLY
    ✓ IN STOCK!
    £291.99 Price with VAT: £350.39 Buy Surplus As Low As £171.11 Price with VAT: £205.33
    £171.11 Price with VAT: £205.33
    Repair Yours £200.00 Price with VAT: £240.00
    MARSH BELLOFRAM SLA-230-ALER

    MARSH BELLOFRAM

    ATC DIVERSIFIED ELECTRONICS

    SLA-230-ALER

    PHASE MONITOR/RELAY, PHASE SEQUENCE/LOSS MONITOR, 230V, LOCK SHAFT ADJ, SURFACE MOUNT, MANUAL RESET
    ✓ IN STOCK!
    £577.32 Price with VAT: £692.78 Buy Surplus As Low As £345.83 Price with VAT: £415.00
    £345.83 Price with VAT: £415.00
    Repair Yours £293.46 Price with VAT: £352.15
    BENDER RCM470LY

    BENDER

    RCM470LY

    DISCONTINUED BY MANUFACTURER, RESIDUAL CURRENT MONITOR, 230 VAC SUPPLY, 40-400 HZ, 0-10 SECOND RESPONSE DELAY +/- 20%, 180 OHM CIRCUIT RESISTANCE, -10 TO +55 DEGREE C OPERATING TEMPERATURE, ...
    ✓ IN STOCK!
    Buy Surplus As Low As £350.71 Price with VAT: £420.85
    £350.71 Price with VAT: £420.85
    Repair Yours £291.09 Price with VAT: £349.30
    DEIF RMV-112D-DELTA-415VAC-ND+ND-24VDC

    DEIF

    RMV-112D-DELTA-415VAC-ND+ND-24VDC

    PROTECTIVE VOLTAGE RELAY, RMV-112D, COUPLING: DELTA, MEASURING VOLTAGE: 415/240V, MODULE: 415V, SUPPLY: 24VDC, RELAY B: NORM. DEENERGIZED, RELAY C: NORM. DEENERGIZED, UNDERVOLTAGE: 80-100%, ...
    ✓ IN STOCK!
    £548.46 Price with VAT: £658.15 Buy Surplus As Low As £293.19 Price with VAT: £351.83
    £293.19 Price with VAT: £351.83
    Repair Yours £270.39 Price with VAT: £324.47
    SIEMENS 3RH1131-2WB40

    SIEMENS

    3RH1131-2WB40

    CONTROL RELAY,2NO 2NC,24VDC LW COIL,CC
    ✓ IN STOCK!
    Buy Surplus As Low As £30.55 Price with VAT: £36.66
    £30.55 Price with VAT: £36.66
    PROCOM TECHNOLOGY GS7001-B-22A3

    PROCOM TECHNOLOGY

    GS7001-B-22A3

    DISCONTINUED BY MANUFACTURER, DIGITAL PROTECTION RELAY, GMS7000 SERIES, INPUT: 20-66 V, 50HZ
    ✓ IN STOCK!
    Buy Surplus As Low As £1,536.71 Price with VAT: £1,844.05
    £1,536.71 Price with VAT: £1,844.05
    Repair Yours £1,360.07 Price with VAT: £1,632.09
    NK TECHNOLOGIES AG3-NOAC-24U-NF-TR3

    NK TECHNOLOGIES

    AG3-NOAC-24U-NF-TR3

    AC GROUND FAULT SENSORS, AG SERIES, SOLID STATE OUTPUT,SOLID-CORE,24U - 24 VAC/VDC POWERED, JUMPER SELECT 5, 10 OR 30 MA SETPOINT, NORMALLY DE-ENERGIZED, TOP TERMINALS, N.O. 1 A @ 240 VAC
    ✓ IN STOCK!
    £315.71 Price with VAT: £378.85 Buy Surplus As Low As £139.09 Price with VAT: £166.91
    £139.09 Price with VAT: £166.91
    Repair Yours £151.60 Price with VAT: £181.92
    MARSH BELLOFRAM SLA-220-AFN

    MARSH BELLOFRAM

    ATC

    SLA-220-AFN

    DISCONTINUED BY MANUFACTURER, PHASE SEQUENCE, LOSS MONITOR
    ✓ IN STOCK!
    Buy Surplus As Low As £179.68 Price with VAT: £215.62
    £179.68 Price with VAT: £215.62
    Repair Yours £200.00 Price with VAT: £240.00
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