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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 authorized 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 authorized dealers. Because Radwell is not an authorized 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 301-350 of 843.
    CROUZET DUR-110A

    CROUZET

    DUR-110A

    SYRELEC, VOLTAGE MONITORING RELAY, DIN RAIL, SPDT 10A, 110 VAC
    ✓ IN STOCK!
    $184.00 Buy New $184.00
    $81.77
    Repair Yours Contact Us
    SIEMENS 3RH1122-1BM40

    SIEMENS

    FURNAS ELECTRIC CO

    3RH1122-1BM40

    09/30/2021 CONTACTOR RELAY, 220 VDC, 2NO/2NC, SCREW TERMINALS, DIN RAIL MOUNTING, REPLACED BY 3RH2122-1BM40
    ✓ IN STOCK!
    $204.07 Buy Surplus As Low As $122.44
    $122.44
    SIEMENS 3RH1244-1BB40

    SIEMENS

    FURNAS ELECTRIC CO

    3RH1244-1BB40

    DISCONTINUED BY MANUFACTURER, CONTROL RELAY, SCREW TERMINALS, 4NO, 4NC, 24VDC COIL
    ✓ IN STOCK!
    Buy Surplus As Low As $90.00
    $90.00
    Repair Yours $300.00
    SIEMENS 3TX7014-1BF00

    SIEMENS

    FURNAS ELECTRIC CO

    3TX7014-1BF00

    DISCONTINUED BY MANUFACTURER, OUTPUT COUPLER WITH PLUG-IN RELAY, 1CO CONTACT, SCREW TERMINAL, 230V AC/DC, 5-50HZ
    ✓ IN STOCK!
    $60.00 Buy Surplus As Low As $33.53
    $33.53
    Repair Yours $300.00
    TIME MARK CORP C2652

    TIME MARK CORP

    C2652

    3-PHASE-MONITORS,480VAC, SIZE 3.5IN X 4.5IN X 4.8IN
    ✓ IN STOCK!
    $288.00 Buy New $288.00
    $140.00
    Repair Yours $300.00
    TIME MARK CORP 273-5-120

    TIME MARK CORP

    273-5-120

    CURRENT-MONITOR, OVER/UNDER CURRENT MONITOR, SINGLE PHASE, 8 PIN, SPDT, 1/5 AMP, 0.5 - 5A, 120VAC, PLUG-IN TYPE
    ✓ IN STOCK!
    $155.54 Buy New $155.54
    $72.15
    Repair Yours $300.00
    LOVATO 11LMU380

    LOVATO

    11LMU380

    UNDERVOLTAGE RELEASE LMU 380/ 415V 50HZ
    ✓ IN STOCK!
    $70.00 Buy New $70.00
    $51.65
    TIME MARK CORP B263

    TIME MARK CORP

    B263

    POWER MONITOR, 3 PHASE, 230 VAC, 30-60 HZ, 160-240 VAC, 15 AMP TO 150 VAC,10 AMP TO 240 VAC
    ✓ IN STOCK!
    $185.00 Buy New $185.00
    $85.00
    Repair Yours $300.00
    ALLEN BRADLEY 3380-701080-1925

    ALLEN BRADLEY

    3380-701080-1925

    DISCONTINUED BY MANUFACTURER, RELAY, TIME CURRENT, 1AMP
    ✓ IN STOCK!
    Buy Surplus As Low As $688.00
    $688.00
    Repair Yours $456.83
    ALLEN BRADLEY 817S-PTC-48

    ALLEN BRADLEY

    817S-PTC-48

    THERMISTOR MONITORING RELAY, AUTO/MANUAL/REMOTE, 24-48 VAC/DC, OPEN/SHORT CIRCUIT, DIN RAIL MOUNT
    ✓ IN STOCK!
    Buy Surplus As Low As $115.43
    $115.43
    GENERAL ELECTRIC 12GGP53C1A

    GENERAL ELECTRIC

    12GGP53C1A

    DISCONTINUED BY MANUFACTURER, POWER DIRECTIONAL RELAY, 5 AMP, 120 VAC, 60 HZ, TYPE GGP
    ✓ IN STOCK!
    Buy Surplus As Low As $2,951.48
    $2,951.48
    Repair Yours $1,800.00
    AUTOMATION DIRECT GFS30-E1C-120A-F

    AUTOMATION DIRECT

    ACUAMP

    GFS30-E1C-120A-F

    ACUAMP GROUND FAULT SENSOR, FIXED CORE, 5, 10, OR 30 MA SELECTABLE TRIP POINT, RELAY, SPDT NORMALLY ENERGIZED, AUTOMATIC RESET OUTPUT, 120 VAC OPERATING VOLTAGE.
    ✓ IN STOCK!
    $343.40 Buy Surplus As Low As $136.99
    $136.99
    Repair Yours $300.00
    ALLEN BRADLEY 200-E710Z24

    ALLEN BRADLEY

    200-E710Z24

    RELAY 7NO/1NC 24VDC-COIL PILOT HEAVY DUTY
    ✓ IN STOCK!
    Buy Surplus As Low As $493.37
    $493.37
    Repair Yours $333.90
    SIEMENS 3RR2141-1AW30

    SIEMENS

    3RR2141-1AW30

    MONITORING RELAY, 1.6-16 AMP, 2 PHASE, 24-240 VAC/DC, 20-400 HZ, SIZE: S00, SCREW CONNECTION, CAN BE MOUNTED TO CONTACTOR 3RT2
    ✓ IN STOCK!
    $334.00 Buy Surplus As Low As $221.00
    $221.00
    Repair Yours $200.00
    GENERAL ELECTRIC IC2820A100BB

    GENERAL ELECTRIC

    IC2820A100BB

    DISCONTINUED BY MANUFACTURER, RELAY, 1.75 AMP, 12-24 VDC, 2 AUXILIARY CONTACTS, 1 NO, 1 NC
    ✓ IN STOCK!
    Buy Surplus As Low As $434.50
    $434.50
    Repair Yours $360.64
    ASEA BROWN BOVERI CM-MPS.41P

    ASEA BROWN BOVERI

    CM-MPS.41P

    VOLTAGE MONITORING RELAY, CM-MPS SERIES, 3 PHASE, 300-500 VAC, 45-65 HZ, DPDT, TIME DELAY: 0.1-30 S, DIN-RAIL MOUNT, (1SVR740884R3300) , 1SVR740884R3300
    ✓ IN STOCK!
    $419.00 Buy Surplus As Low As $319.00
    $319.00
    Repair Yours $300.00
    ASEA BROWN BOVERI 1SVR630736R0300

    ASEA BROWN BOVERI

    1SVR630736R0300

    CM-UFS.1 THREE-PH MONITOR RELAY
    ✓ IN STOCK!
    $449.00 Buy Surplus As Low As $342.00
    $342.00
    Repair Yours $300.00
    ASEA BROWN BOVERI 1SVR730831R0400

    ASEA BROWN BOVERI

    1SVR730831R0400

    VOLTAGE MONITORING RELAY, SPDT, 1 PHASE, 4 AMP, 2 C/O, 110-130 VAC, 10 MA, 8 MM STRIPPING LENGTH, SCREW TYPE TERMINALS, DIN RAIL MOUNT, -20 TO +60 DEGREES C, IP20/50
    ✓ IN STOCK!
    $347.00 Buy Surplus As Low As $264.00
    $264.00
    Repair Yours $300.00
    DOLD BA 9043/001 3AC 50/60HZ 400V

    DOLD

    BA 9043/001 3AC 50/60HZ 400V

    RELAY, VOLTAGE SENSING, DPDT, 400VAC; PRODUCT RANGE:BA 9043 SERIES; CONTACT CONFIGURATION:DPDT; CONTACT CURRENT:3A; RELAY MOUNTING:DIN RAIL; CONTACT VOLTAGE VAC:230VAC; RELAY TERMINALS:SCREW ...
    ✓ IN STOCK!
    $394.60 Buy Surplus As Low As $129.26
    $129.26
    Repair Yours $300.00
    ASEA BROWN BOVERI WLM645A5S

    ASEA BROWN BOVERI

    SSAC

    WLM645A5S

    SSAC, ASEA BROWN BOVERI, WLM645A5S, VOLTAGE MONITOR THREE PHASE, 200/240VAC, 5SEC TRIP DELAY
    ✓ IN STOCK!
    $162.66 Buy Surplus As Low As $85.61
    $85.61
    Repair Yours $300.00
    SIEMENS 3TK2022-7AM0

    SIEMENS

    FURNAS ELECTRIC CO

    3TK2022-7AM0

    MINIATURE CONTACTOR, FLAT CONNECTOR TERMINAL, 2 NO + 2 NC, SCREW MOUNTING (DIAGONAL), 220VAC, 50-60HZ
    ✓ IN STOCK!
    Buy Surplus As Low As $132.00
    $132.00
    MACROMATIC PMP575

    MACROMATIC

    PMP575

    3-PHASE MONITOR RELAY, 575 VAC, 8 PIN PLUG-IN, 10 AMP SPDT RELAY, PHASE LOSS, REVERSAL - FIXED, UNBALANCE, OVER/UNDER VOLTAGE - ADJUSTABLE
    ✓ IN STOCK!
    $215.27 Buy New $215.27
    $126.00
    KEARNEY NATIONAL INC 22.017-03-200-A/4H

    KEARNEY NATIONAL INC

    22.017-03-200-A/4H

    DISCONTINUED BY MANUFACTURER, FAULT INDICATOR CRAB, 200 AMP
    ✓ IN STOCK!
    Buy Surplus As Low As $13.79
    $13.79
    GRAINGER 6X555

    GRAINGER

    GRAINGER APPROVED VENDOR

    6X555

    RELAY 35AMP 1POLE N/C POTENTIAL RELAY
    ✓ IN STOCK!
    $25.92 Buy Surplus As Low As $10.71
    $10.71
    Repair Yours Contact Us
    TIME MARK CORP 20

    TIME MARK CORP

    20

    3-PHASE-MONITORS,WITH TRIP AND RESTART DELAYS, 190-480VAC, SIZE 3.91IN X 2.2IN X 2.3IN
    ✓ IN STOCK!
    $154.00 Buy New $154.00
    $76.00
    Repair Yours Contact Us
    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!
    $372.00 Buy New $372.00
    $233.26
    Repair Yours $300.00
    MARSH BELLOFRAM SLA-440-AFE

    MARSH BELLOFRAM

    ATC DIVERSIFIED ELECTRONICS

    SLA-440-AFE

    PHASE MONITOR/RELAY
    ✓ IN STOCK!
    $560.00 Buy New $560.00
    $370.00
    Repair Yours $300.00
    MARSH BELLOFRAM SLA-230-ASA

    MARSH BELLOFRAM

    ATC DIVERSIFIED ELECTRONICS

    SLA-230-ASA

    PHASE MONITOR, 190-270 VAC, 50/60 HZ, CONTACTS 10 AMP @ 240 VAC, RESISTIVE 345 VAC
    ✓ IN STOCK!
    $155.00 Buy New $155.00
    $97.59
    Repair Yours $300.00
    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!
    $793.50 Buy New $793.50
    $471.43
    Repair Yours $381.00
    MARSH BELLOFRAM CMU-24-DSA-1

    MARSH BELLOFRAM

    ATC DIVERSIFIED ELECTRONICS

    CMU-24-DSA-1

    OVERCURRENT MONITOR RELAY, AC, W/ MANUAL RESET, CMU MODEL, OUTPUT - 10 AMPS @ 120 V AC - RESISTIVE, DPDT, CONTROL VOLTAGE - 24 V AC/DC, 50/60 HZ, PLUG-IN ENCLOSURE, CURRENT TRIP POINTS - 0.2 ...
    ✓ IN STOCK!
    $429.00 Buy New $429.00
    $327.00
    Repair Yours $300.00
    MARSH BELLOFRAM CMO-120-ASA-1

    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!
    $757.50 Buy New $757.50
    $261.47
    Repair Yours $300.00
    MARSH BELLOFRAM CMI-120-ASE-20

    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!
    $561.00 Buy New $561.00
    $243.00
    Repair Yours $300.00
    MARSH BELLOFRAM DPR350B

    MARSH BELLOFRAM

    ATC DIVERSIFIED ELECTRONICS

    DPR350B

    PHASE MONITOR, TIME DELAY, 3 PHASE, 460 VAC, DIN RAIL MOUNT
    ✓ IN STOCK!
    $198.00 Buy New $198.00
    $135.90
    Repair Yours $300.00
    SCHNEIDER ELECTRIC RM22TA33

    SCHNEIDER ELECTRIC

    SQUARE D

    RM22TA33

    PHASE MONITORING RELAY, RM22 SERIES, 380-480 VAC, 2 NO/NC, 8 AMP/250 VAC, ELECTROMECHANICAL RELAY TYPE, DIN RAIL MOUNT
    ✓ IN STOCK!
    $250.29 Buy Surplus As Low As $146.00
    $146.00
    Repair Yours $300.00
    FW MURPHY OFR500

    FW MURPHY

    OFR500

    DISCONTINUED BY MANUFACTURER, RELAY OVER FREQUENCY, FRONT STATUS LEDS, 12 PORTS
    ✓ IN STOCK!
    Buy Surplus As Low As $311.00
    $311.00
    Repair Yours $300.00
    SCHNEIDER ELECTRIC RM4-TA31

    SCHNEIDER ELECTRIC

    TELEMECANIQUE

    RM4-TA31

    DISCONTINUED BY MANUFACTURER, PHASE FAILURE, RELAY, 300V, 5A, RM4
    ✓ IN STOCK!
    Buy Surplus As Low As $220.01
    $220.01
    SCHNEIDER ELECTRIC PR-101-PLR

    SCHNEIDER ELECTRIC

    SQUARE D

    PR-101-PLR

    DISCONTINUED BY MANUFACTURER, RELAY PHASE LOSS/REVERSAL 5AMP 120VAC .01OHM 60HZ
    ✓ IN STOCK!
    Buy Surplus As Low As $60.17
    $60.17
    SCHNEIDER ELECTRIC GP-200C

    SCHNEIDER ELECTRIC

    SQUARE D

    GP-200C

    DISCONTINUED BY MANUFACTURER, GROUND FAULT RELAY, TYPE GP, 200-1100A, TRIP SETTING
    ✓ IN STOCK!
    Buy Surplus As Low As $377.78
    $377.78
    Repair Yours $300.00
    SCHNEIDER ELECTRIC 60995

    SCHNEIDER ELECTRIC

    MERLIN GERIN

    60995

    DISCONTINUED BY MANUFACTURER 06/30/21, GROUND FAULT PROTECTOR, 4 POLES, 63 AMP, 240-480 VAC, 50/60 HZ, 30 MA, -25 TO +60 DEGREES C, IP20 / IP40, SUCCESSOR IS M9R81463
    ✓ IN STOCK!
    Buy Surplus As Low As $1,140.00
    $1,140.00
    GENERAL ELECTRIC 704169

    GENERAL ELECTRIC

    704169

    DISCONTINUED BY MANUFACTURER, DIFERENCIAL RD5 220V 50/60HZ
    ✓ IN STOCK!
    Buy Surplus As Low As $260.45
    $260.45
    Repair Yours $300.00
    GOTRONIC 621102

    GOTRONIC

    621102

    MOTION CONTROL UNDERSPEED SWITCH 120VAC
    ✓ IN STOCK!
    Buy Surplus As Low As $350.54
    $350.54
    Repair Yours $300.00
    GOTRONIC 555100

    GOTRONIC

    555100

    DISCONTINUED BY MANUFACTURER, POWER LINE MONITOR, 480VAC, 50/60HZ
    ✓ IN STOCK!
    Buy Surplus As Low As $473.71
    $473.71
    Repair Yours $314.54
    GOTRONIC 559100

    GOTRONIC

    559100

    POWER LINE MONITOR,120VAC,10AMP,4-5 SEC
    ✓ IN STOCK!
    Buy Surplus As Low As $135.76
    $135.76
    Repair Yours $300.00
    EATON CORPORATION 8137869B0

    EATON CORPORATION

    COOPER POWER

    8137869B0

    FAULT INDICATOR LINAM 800AMP 1.81IN OD 3Q97
    ✓ IN STOCK!
    $26.57 Buy Surplus As Low As $22.14
    $22.14
    GENERAL ELECTRIC 12HAA15B5F

    GENERAL ELECTRIC

    12HAA15B5F

    DISCONTINUED BY MANUFACTURER, RELAY AUXILIARY W/CASE, 125VDC
    ✓ IN STOCK!
    Buy Surplus As Low As $262.67
    $262.67
    Repair Yours $300.00
    WEG RPW-FSF-Z34

    WEG

    RPW-FSF-Z34

    PHASE LOSS & PHASE SEQUENCE RELAY 220/240V 50/60HZ
    ✓ IN STOCK!
    $61.61 Buy Surplus As Low As $33.57
    $33.57
    Repair Yours Contact Us
    BENDER UG-143-P

    BENDER

    UG-143-P

    DISCONTINUED BY MANUFACTURER, EARTH FAULT RELAY, 5 AMP, 250 VAC, 24 VDC, 25 K OHM
    ✓ IN STOCK!
    Buy Surplus As Low As $90.00
    $90.00
    LITTELFUSE SE-330-00-00

    LITTELFUSE

    STARTCO ENGINEERING

    SE-330-00-00

    RESISTANCE MONITOR, NEUTRAL GROUNDING, SE-330 SERIES, 120/240VAC/DC, 4-20 MA, DELAY TIME 0.1/10 SECONDS, HARMONIC FILTERING, MANUAL RESET,PANEL MOUNT
    ✓ IN STOCK!
    $6,203.00 Buy Surplus As Low As $3,253.87
    $3,253.87
    Repair Yours $1,895.00
    TIME MARK CORP 274-5-240-M

    TIME MARK CORP

    274-5-240-M

    CURRENT-MONITORS, 3-PHASE OVER CURRENT MONITOR, 1 - 5A, 240VAC, SIZE 6.06IN X 3.88IN X 2.08IN
    ✓ IN STOCK!
    $328.65 Buy New $328.65
    $139.32
    Repair Yours $300.00
    TIME MARK CORP 2629

    TIME MARK CORP

    2629

    VOLTAGE FREQUENCY MONITOR, OVER OR UNDER VOLTAGE MONITOR, 15-260 VAC/VDC, SIZE 3.52IN X 2.44IN X 1.75IN
    ✓ IN STOCK!
    $215.00 Buy New $215.00
    $104.00
    Repair Yours $300.00
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