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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.

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    Results 1-50 of 436.
    ALLEN BRADLEY 1409-N3

    ALLEN BRADLEY

    1409-N3

    DISCONTINUED BY MANUFACTURER 09/30/2016, ARCING GROUND FAULT DETECTION SENSOR, NEMA5
    ✓ IN STOCK!
    Buy Surplus As Low As $1,080.00
    $1,080.00
    Repair Yours $900.00
    ALLEN BRADLEY 809-A04E

    ALLEN BRADLEY

    809-A04E

    DISCONTINUED BY MANUFACTURER, CURRENT RELAY, INSTANTANEOUS TRIP, 6 A MAXIMUM, CONTINUOUS, 1 NORMALLY OPEN OUTPUT, AUTOMATIC RESET
    ✓ IN STOCK!
    Buy Surplus As Low As $700.70
    $700.70
    Repair Yours $539.00
    ALLEN BRADLEY 810-A04A

    ALLEN BRADLEY

    810-A04A

    DISCONTINUED BY MANUFACTURER (2010-02-27), MAGNETIC OVERLOAD RELAY, INVERSE TIME CURRENT RELAY, 6 AMP, NORMALLY CLOSED, OPEN TYPE, AUTO RESET
    ✓ IN STOCK!
    Buy Surplus As Low As $1,092.00 $808.50
    $1,092.00 $808.50
    Repair Yours $924.00
    SIEMENS 3TX7111-3PF13

    SIEMENS

    3TX7111-3PF13

    PLUG-IN RELAY, PREMIUM LED, MECHANICAL FLAG, 14-PIN, SQUARE BASE 4PDT, 6A, 120VAC, USES SOCKET 3TX7144-1E5 OR 3TX7144-4E5
    ✓ IN STOCK!
    $39.00 Buy Surplus As Low As $24.00
    $24.00
    Repair Yours $200.00
    SIEMENS 3RH1140-1AK60

    SIEMENS

    3RH1140-1AK60

    DISCONTINUED BY MANUFACTURER, CONTROL RELAY, 4NO, 120VAC / 50/60HZ COIL, 3RH SERIES
    ✓ IN STOCK!
    Buy Surplus As Low As $65.00
    $65.00
    Repair Yours $200.00
    CROUZET DWRS440A

    CROUZET

    DWRS440A

    3-PHASE MONITORING RELAY, DIN RAIL, SPDT 10A, 3X440 VAC, CAN BE REPLACED BY PN PWRS440A. DIFFERENCE: 8-PIN CONNECTOR INSTEAD OF DIN RAIL MOUNT. NEEDED: AN 8-PIN DIN RAIL SOCKET
    ✓ IN STOCK!
    Buy Surplus As Low As $180.00
    $180.00
    Repair Yours $200.00
    SIEMENS 3RK1402-0BE00-0AA2

    SIEMENS

    FURNAS ELECTRIC CO

    3RK1402-0BE00-0AA2

    DISCONTINUED BY MANUFACTURER, PRODUCT DISCONTINUED SINCE 01.12.2016, SLIMLINE MODULE, 230V, 4 KV, 2 INPUT FOR 3 WIRE SENSOR, 2 OUTPUT, S22.5 DIGITAL 2DI/2RQ, RELAY SCREW TERMINALS
    ✓ IN STOCK!
    Buy Surplus As Low As $55.00
    $55.00
    Repair Yours $200.00
    SIEMENS 3UG4513-1BR20

    SIEMENS

    FURNAS ELECTRIC CO

    3UG4513-1BR20

    VOLTAGE PHASE MONITOR, 3 PHASE RELAY, ADJUSTABLE UNDERVOLTAGE ASYMMETRY FIXED, 3X160 TO 690 VAC, 50/60HZ, FIXED DELAY TIME: 0-20 S, 2 CHANGE-OVER CONTACTS, SCREW TERMINAL, DIRECT REPLACEMENT ...
    ✓ IN STOCK!
    $400.00 Buy Surplus As Low As $240.00
    $240.00
    Repair Yours $200.00
    ASEA BROWN BOVERI DPU-2000R

    ASEA BROWN BOVERI

    DPU-2000R

    DISCONTINUED BY MANUFACTURER, RELAY / DISTRIBUTION PROTECTION SYSTEM, INDUSTRIAL CONTROL EQUIPMENT, TYPE / DPU 2000R, PHASE / 0.4-12 AMP, GROUND / 0.4-12 AMP, 38-58 VDC, 60 HZ, 1-12 AMP, 70- ...
    ✓ IN STOCK!
    Buy Surplus As Low As $773.28
    $773.28
    Repair Yours $509.21
    SIEMENS 3TX7004-1LB02

    SIEMENS

    3TX7004-1LB02

    DISCONTINUED BY MANUFACTURER 10/01/2020, OUTPUT COUPLING LINK, SCREW TERMINAL, 1 CO HARD GOLD-PLATED, 24 VAC/DC, 6.2 MM ENCLOSURE WIDTH, DIN RAIL MOUNTABLE, PREFERRED SUCCESSOR: 3RQ3018-1AB0 ...
    ✓ IN STOCK!
    $88.00 Buy Surplus As Low As $44.00
    $44.00
    SIEMENS 3UG4512-1AR20

    SIEMENS

    FURNAS ELECTRIC CO

    3UG4512-1AR20

    PRODUCT PHASE-OUT SINCE 10/01/2023, ANALOG MONITORING RELAY, 4 AMP, 3 PHASE, 160-690 VAC, 50/60 HZ, SCREW TYPE TERMINALS, -25 TO +60 DEGREE C, IP20, SUCCESSOR: 3UG5512-1AR20
    ✓ IN STOCK!
    $198.00 Buy Surplus As Low As $119.00
    $119.00
    Repair Yours $200.00
    SIEMENS 3UF7102-1AA00-0

    SIEMENS

    3UF7102-1AA00-0

    CURRENT MEASURING MODULE, 10-100 AMP, OVERALL WIDTH 55 MM, STRAIGHT THROUGH TRANSFORMER
    ✓ IN STOCK!
    $433.00 Buy Surplus As Low As $149.00
    $149.00
    Repair Yours $200.00
    SIEMENS 3UG4512-1BR20

    SIEMENS

    3UG4512-1BR20

    SCREW TERMINAL, PHASE FAILURE AND SEQUENCE
    ✓ IN STOCK!
    $187.00 Buy Surplus As Low As $113.00
    $113.00
    Repair Yours $200.00
    SIEMENS 3UG4511-1BP20

    SIEMENS

    FURNAS ELECTRIC CO

    3UG4511-1BP20

    ANALOG MONITORING RELAY, PHASE SEQUENCE MONITORING, 3 PHASE, 320-500 VAC, 50/60 HZ, 2 CHANGE-OVER CONTACTS, SCREW TERMINAL, PREFERRED SUCCESSOR: 3UG5511-1BR20
    ✓ IN STOCK!
    $163.00 Buy Surplus As Low As $98.00
    $98.00
    SIEMENS 3TX7111-3LC03

    SIEMENS

    FURNAS ELECTRIC CO

    3TX7111-3LC03

    PLUG-IN RELAY, PREMIUM LED, MECHANICAL FLAG, 8-PIN, SQUARE BASE DPDT, 12A, 24VDC, USES SOCKET 3TX7144-1E5 OR 3TX7144-4E5
    ✓ IN STOCK!
    $37.00 Buy Surplus As Low As $23.00
    $23.00
    Repair Yours $200.00
    SIEMENS 3TX71105BC03C

    SIEMENS

    3TX71105BC03C

    PLUG-IN RELAY, BASIC 5-PIN, SQUARE BASE SPDT, 15A, 24VDC, USES SOCKET 3TX7144-4E7
    ✓ IN STOCK!
    $23.00 Buy Surplus As Low As $14.00
    $14.00
    Repair Yours $200.00
    SIEMENS 3TX7117-5PC03

    SIEMENS

    FURNAS ELECTRIC CO

    3TX7117-5PC03

    PLUG-IN RELAY, PREMIUM LED, MECHANICAL FLAG, 14-PIN, SQUARE BASE, COIL VOLTAGE 24VDC, 15 AMP, 4PDT, USES SOCKET 3TX7144-4E9
    ✓ IN STOCK!
    $54.00 Buy Surplus As Low As $42.00
    $42.00
    SIEMENS 3UG4615-1CR20

    SIEMENS

    FURNAS ELECTRIC CO

    3UG4615-1CR20

    VOLTAGE MONITORING RELAY, N75, CONTROLS - MONITORING 3UG3
    $314.61 Buy Surplus As Low As $189.00
    $189.00
    Repair Yours $200.00
    SIEMENS 3TK2040-7BB4

    SIEMENS

    3TK2040-7BB4

    DISCONTINUED BY MANUFACTURER, MINIATURE CONTACTOR, FLAT CONNECTOR TERMINAL, 4 NO, SCREW MOUNTING (DIAGONAL), 24 VDC, DC OPERATION, SUCCESSOR: 3RT2316-2BB40
    ✓ IN STOCK!
    Buy Surplus As Low As $432.00
    $432.00
    SIEMENS 3TX7014-1AM00

    SIEMENS

    FURNAS ELECTRIC CO

    3TX7014-1AM00

    DISCONTINUED BY MANUFACTURER, OUTPUT COUPLER , WITH PLUG-IN RELAY, 1 NO CONTACT, SCREW TERMINAL, 24 V DC, ENCLOSURE WIDTH 6.2 MM
    ✓ IN STOCK!
    $43.00 Buy Surplus As Low As $26.00 $12.90
    $26.00 $12.90
    SIEMENS 3RS1800-1HW00

    SIEMENS

    3RS1800-1HW00

    RELAY, 24 - 240VUC, 3CO,SCREW, N76, CONTROLS - INTERFACE 3RS
    ✓ IN STOCK!
    $163.00 Buy Surplus As Low As $83.30
    $83.30
    Repair Yours $200.00
    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 $348.00
    $348.00
    Repair Yours $290.00
    SIEMENS 3UG4511-1AP20

    SIEMENS

    3UG4511-1AP20

    PHASE MONITORING RELAY, 320-500V, 5A, DIN RAIL, SCREW TERMINAL, 3UG SERIES
    ✓ IN STOCK!
    $175.00 Buy Surplus As Low As $102.00
    $102.00
    Repair Yours $200.00
    SIEMENS 3UF7113-1BA00-0

    SIEMENS

    3UF7113-1BA00-0

    DISCONTINUED BY MANUFACTURER 04/01/2022, CURRENT/VOLTAGE MEASURING MODULE, 20-200 AMP SET CURRENT, 690 V, 120 MM WIDTH, BUSBAR CONNECTION, REPLACED BY 3UF7113-1BA01-0
    ✓ IN STOCK!
    $1,243.00 Buy Surplus As Low As $945.00
    $945.00
    Repair Yours $620.00
    CROUZET DUR-110A

    CROUZET

    DUR-110A

    VOLTAGE MONITORING RELAY, DIN RAIL, SPDT 10A, 110 VAC
    ✓ IN STOCK!
    $259.00 Buy New $259.00
    $156.00
    Repair Yours $200.00
    SIEMENS RCC5P1

    SIEMENS

    ALLIS CHALMERS

    RCC5P1

    CONTROL RELAY 5POLE 5NO/5NC 110/120VAC COIL
    ✓ IN STOCK!
    $584.00 Buy Surplus As Low As $351.00
    $351.00
    Repair Yours $292.00
    ASEA BROWN BOVERI 1SVR550870R9400

    ASEA BROWN BOVERI

    1SVR550870R9400

    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, (CM-PVE)
    ✓ IN STOCK!
    $128.00 Buy Surplus As Low As $98.00
    $98.00
    Repair Yours $200.00
    ALLEN BRADLEY 809-A16E

    ALLEN BRADLEY

    809-A16E

    DISCONTINUED BY MANUFACTURER 11/30/2009, CURRENT RELAY, INSTANTANEOUS TRIP, 100 AMP COIL CURRENT
    ✓ IN STOCK!
    Buy Surplus As Low As $2,838.00
    $2,838.00
    Repair Yours $2,356.00
    SIEMENS 3RH1140-2BB40

    SIEMENS

    FURNAS ELECTRIC CO

    3RH1140-2BB40

    DISCONTINUED BY MANUFACTURER, RELAY CONTROL, 6AMP, 24VDC, 4NO W/CAGE CLAMP TERMINAL, SUCCESSOR 3RH2140-2BB40
    ✓ IN STOCK!
    $380.62 Buy Surplus As Low As $210.00
    $210.00
    Repair Yours $200.00
    SIEMENS 3RH1122-1BG40

    SIEMENS

    FURNAS ELECTRIC CO

    3RH1122-1BG40

    DISCONTINUED BY MANUFACTURER, CONTACTOR RELAY, 2N0 + 2NC, 125VDC, SCREW TERMINAL, SIZE S00, REPLACED BY 3RH2122-1BG40
    ✓ IN STOCK!
    Buy Surplus As Low As $129.00
    $129.00
    ALLEN BRADLEY 1409-EOBD

    ALLEN BRADLEY

    1409-EOBD

    DISCONTINUED BY MANUFACTURER 09/30/2016, ARCING GROUND FAULT DETECTION SYSTEM, NEMA, 460 VAC, 124 AMP, ARCING GF RELAY, CLASS II WITH HIGH CURRENT INHIBIT FEATURE
    ✓ IN STOCK!
    Buy Surplus As Low As $3,195.00
    $3,195.00
    Repair Yours $2,411.00
    ALLEN BRADLEY 810-A05A

    ALLEN BRADLEY

    810-A05A

    DISCONTINUED BY MANUFACTURER 02/28/2010, CURRENT RELAY, INVERSE TIME-DELAY, 9 AMP MAX, CONTINUOUS, 1 NORMALLY CLOSED OUTPUT, AUTOMATIC RESET, WITH BLUE DASHPOT FLUID
    ✓ IN STOCK!
    Buy Surplus As Low As $1,980.00
    $1,980.00
    Repair Yours $1,644.00
    SIEMENS 3TX7112-1LF13

    SIEMENS

    FURNAS ELECTRIC CO

    3TX7112-1LF13

    PLUG-IN RELAY, PREMIUM LED, MECHANICAL FLAG, 8-PIN OCTAL BASE, DPDT, 10 AMP, 120 VAC
    ✓ IN STOCK!
    $54.00 Buy Surplus As Low As $33.00
    $33.00
    Repair Yours $200.00
    SIEMENS 3RH1122-1AP60

    SIEMENS

    FURNAS ELECTRIC CO

    3RH1122-1AP60

    DISCONTINUED BY MANUFACTURER, RELAY, 6AMP, 2NO + 2NC, 240VAC, 50/60HZ, SUCCESSOR 3RH2122-1AP60
    ✓ IN STOCK!
    Buy Surplus As Low As $198.00 $99.00
    $198.00 $99.00
    SIEMENS 3RH1440-1BB40

    SIEMENS

    3RH1440-1BB40

    DISCONTINUED BY MANUFACTURER, CONTROL RELAY,4NO,24VDC COIL,LATCHED
    ✓ IN STOCK!
    Buy Surplus As Low As $988.00
    $988.00
    Repair Yours $648.00
    SIEMENS 3UF7103-1AA00-0

    SIEMENS

    3UF7103-1AA00-0

    CURRENT MEASURING MODULE, 20-200 AMP SET CURRENT, 120 MM OVERALL WIDTH, STRAIGHT-THROUGH TRANSFORMER
    ✓ IN STOCK!
    $829.00 Buy Surplus As Low As $498.00
    $498.00
    Repair Yours $414.00
    SIEMENS 3UF7111-1AA00-0

    SIEMENS

    FURNAS ELECTRIC CO

    3UF7111-1AA00-0

    DISCONTINUED BY MANUFACTURER 12/01/2021, CURRENT/VOLTAGE MEASURING MODULE, SIMOCODE PRO, 2.4-25 AMP, DETECTION UP TO 690V, OVERALL WIDTH 45 MM, STRAIGHT-THROUGH TRANSFORMER, REPLACED BY 3UF7 ...
    ✓ IN STOCK!
    Buy Surplus As Low As $1,176.00
    $1,176.00
    Repair Yours $977.00
    SIEMENS 3UF7100-1AA00-0

    SIEMENS

    3UF7100-1AA00-0

    SIMOCODE PRO CUR MEAS. MODULE,0.3-3A, N7G, CONTROLS - SIMOCODE 3UF50 OVRLD
    ✓ IN STOCK!
    $377.00 Buy Surplus As Low As $227.00
    $227.00
    Repair Yours $200.00
    SIEMENS 3TX7126-3HB10

    SIEMENS

    3TX7126-3HB10

    DISCONTINUED BY MANUFACTURER, PLUG-IN RELAY, SIMIREL MINIATURE BASE 4PDT, 3A, 12VAC
    ✓ IN STOCK!
    $20.00 Buy Surplus As Low As $12.00
    $12.00
    SIEMENS 3UG4622-1AA30

    SIEMENS

    3UG4622-1AA30

    DIGITAL MONITORING RELAY, 21 TO 26V AC/DC, ADJ 0.05 TO 10.00A, 3A @ 250/400V, TERMINAL STRIP
    ✓ IN STOCK!
    $240.00 Buy Surplus As Low As $144.00
    $144.00
    Repair Yours $200.00
    SIEMENS 3UG4617-1CR20

    SIEMENS

    3UG4617-1CR20

    MONITORING RELAY, DIGITAL, LCD DISPLAY, 0-20 S OFF DELAY, 3-PHASE, 160-690 V, 50/60 HZ, IP20, (SUCCESSOR: 3UG5618-1CR20)
    ✓ IN STOCK!
    $338.00 Buy Surplus As Low As $227.00
    $227.00
    Repair Yours $200.00
    SIEMENS 3TX7110-5BF13C

    SIEMENS

    3TX7110-5BF13C

    PLUG-IN RELAY, BASIC 5-PIN, SQUARE BASE SPDT, 15A, 120VAC, USES SOCKET 3TX7144-4E7
    ✓ IN STOCK!
    $23.00 Buy Surplus As Low As $14.00
    $14.00
    Repair Yours $200.00
    SIEMENS 3TX7110-5JG13

    SIEMENS

    3TX7110-5JG13

    PLUG-IN RELAY, PREMIUM LED, MECHANICAL FLAG, 5-PIN, SQUARE BASE SPDT, 15A, 230VAC, USES SOCKET 3TX7144-4E7
    ✓ IN STOCK!
    $34.00 Buy Surplus As Low As $21.00
    $21.00
    Repair Yours $200.00
    SIEMENS 3TX7130-0DF13

    SIEMENS

    FURNAS ELECTRIC CO

    3TX7130-0DF13

    OPEN POWER RELAY, HEAVY DUTY DPDT, 40A, 120VAC, OPTIONAL METAL COVER 3TX7144-1M0
    ✓ IN STOCK!
    $153.00 Buy Surplus As Low As $92.00
    $92.00
    Repair Yours $200.00
    SIEMENS 3TX7130-0BF13

    SIEMENS

    3TX7130-0BF13

    OPEN POWER RELAY, HEAVY DUTY SPST, 40A, 120VAC, OPTIONAL METAL COVER 3TX7144-1M0
    ✓ IN STOCK!
    $76.00 Buy Surplus As Low As $58.00
    $58.00
    Repair Yours $200.00
    SIEMENS 3TX7112-1LC03

    SIEMENS

    3TX7112-1LC03

    PLUG-IN RELAY, PREMIUM LED, MECHANICAL FLAG, 8-PIN, OCTAL BASE DPDT, 10A, 24VDC, USES SOCKET 3TX7144-1E2 OR 3TX7144-4E2
    ✓ IN STOCK!
    $54.00 Buy Surplus As Low As $20.12
    $20.12
    Repair Yours $200.00
    SIEMENS 3TX7114-5LC03

    SIEMENS

    3TX7114-5LC03

    PLUG-IN RELAY, PREMIUM LED, MECHANICAL FLAG, 8-PIN, SQUARE BASE DPDT, 15A, 24VDC, USES SOCKET 3TX7144-1E6 OR 3TX7144-4E6
    ✓ IN STOCK!
    $39.00 Buy Surplus As Low As $24.00
    $24.00
    Repair Yours $200.00
    SIEMENS 3TX7110-5JF13

    SIEMENS

    FURNAS ELECTRIC CO

    3TX7110-5JF13

    PLUG-IN RELAY, PREMIUM LED, MECHANICAL FLAG, 5-PIN, SQUARE BASE SPDT, 15A, 120VAC, USES SOCKET 3TX7144-4E7
    ✓ IN STOCK!
    $26.00 Buy Surplus As Low As $14.00
    $14.00
    SIEMENS 3RH1140-1BG40

    SIEMENS

    FURNAS ELECTRIC CO

    3RH1140-1BG40

    DISCONTINUED BY MANUFACTURER, CONTACTOR RELAY, 4-NORMALLY OPEN CONTACTS, 125 VDC, TERMINAL SIZE S00, SUGGESTED REPLACEMENT IS 3RH2140-1BG40
    ✓ IN STOCK!
    Buy Surplus As Low As $312.00 $205.00
    $312.00 $205.00
    SIEMENS 3RH1122-1KB40

    SIEMENS

    FURNAS ELECTRIC CO

    3RH1122-1KB40

    DISCONTINUED BY MANUFACTURER, CONTROL RELAY, 2NO/2NC, 24 V DC, EXTENDED COIL
    ✓ IN STOCK!
    Buy Surplus As Low As $180.00
    $180.00
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