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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 501-550 of 845.
    GENERAL ELECTRIC 12CEB52A2D

    GENERAL ELECTRIC

    12CEB52A2D

    DISCONTINUED BY MANUFACTURER, MHO DISTANCE RELAY, 120 VAC, 5 AMP, 60 CYCLES
    ✓ IN STOCK!
    Buy Surplus As Low As $834.00
    $834.00
    Repair Yours $733.20
    BASLER ELECTRIC TIEE1CD0N07

    BASLER ELECTRIC

    TIEE1CD0N07

    DISCONTINUED BY MANUFACTURER, PROTECTIVE RELAY, CYCLES-3, 60-HZ, TRIP FREQUENCY-1
    ✓ IN STOCK!
    Buy Surplus As Low As $378.96
    $378.96
    Repair Yours $300.00
    TSUDAKOMA 626352CB

    TSUDAKOMA

    626352CB

    DISCONTINUED BY MANUFACTURER, VOLTAGE CONTROLLER, -5 TO +5
    ✓ IN STOCK!
    Buy Surplus As Low As $849.00
    $849.00
    Repair Yours $705.00
    SCHWEITZER ENGINEERING 751A01ACA0X74851000

    SCHWEITZER ENGINEERING

    751A01ACA0X74851000

    FEEDER PROTECTION RELAY, 110-250 VDC, 110-240 VAC SUPPLY, 50/60 HZ, PUSHBUTTON INTERFACE, DIGITAL DISPLAY
    ✓ IN STOCK!
    $7,460.63 Buy Surplus As Low As $3,015.61
    $3,015.61
    Repair Yours $2,502.96
    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 $533.67
    $533.67
    Repair Yours $421.00
    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!
    $254.16 Buy Surplus As Low As $100.06
    $100.06
    Repair Yours $300.00
    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 $1,064.00
    $1,064.00
    Repair Yours $698.00
    SCHNEIDER ELECTRIC P122A00Z112CF0

    SCHNEIDER ELECTRIC

    P122A00Z112CF0

    DISCONTINUED BY MANUFACTURER, FAULT PROTECTION RELAY, 3 PHASE, 0.1-40 ION, OVERCURRENT AND EARTH, DIGITAL INPUT VOLTAGE: 24-250 VDC/24-240 VAC, AUXILIARY VOLTAGE: 24-250 VDC/48-240 VAC, COMM ...
    ✓ IN STOCK!
    Buy Surplus As Low As $1,064.00
    $1,064.00
    Repair Yours $698.00
    BENDER RCMA423-D9-1

    BENDER

    RCMA423-D9-1

    DISCONTINUED BY MANUFACTURER, GROUND-FAULT MONITOR FOR GROUNDED AND HIGH-RESISTANCE GROUNDED AC/DC SYSTEMS, 5 AMP, 16-72 VAC, 30 MA
    ✓ IN STOCK!
    Buy Surplus As Low As $230.42
    $230.42
    Repair Yours $300.00
    ASEA BROWN BOVERI 609300K02

    ASEA BROWN BOVERI

    609300K02

    PHASE SENSOR, 600A BREAKING RATE, K800
    ✓ IN STOCK!
    $586.00 Buy Surplus As Low As $230.65
    $230.65
    Repair Yours $300.00
    ASEA BROWN BOVERI 609300-K4

    ASEA BROWN BOVERI

    609300-K4

    CURRENT TRANSFORMER POWER SHIELD, 1600/2000 AMP
    ✓ IN STOCK!
    $352.49 Buy Surplus As Low As $141.00
    $141.00
    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 $2,177.00
    $2,177.00
    Repair Yours $1,807.00
    BASLER ELECTRIC BE1-87G-S1A-A1C-A0N0

    BASLER ELECTRIC

    BE1-87G-S1A-A1C-A0N0

    DISCONTINUED BY MANUFACTURER, VARIABLE PERCENTAGE DIFFERENTIAL RELAY. BE1-87G MODEL, 1 PHASE, SELECTABLE INPUT, INSTANTANEOUS TIMING, INTERNALLY OPERATED TARGETS
    ✓ IN STOCK!
    Buy Surplus As Low As $382.63
    $382.63
    Repair Yours $352.87
    CARLO GAVAZZI SM125230500

    CARLO GAVAZZI

    SM125230500

    DISCONTINUED BY MANUFACTURER, VOLTAGE MONITORING RELAY, 230 VAC SUPPLY, 50-500 VAC/DC MEASURING RANGE, LED INDICATION
    ✓ IN STOCK!
    Buy Surplus As Low As $122.21
    $122.21
    Repair Yours $300.00
    ASEA BROWN BOVERI JSBT3-115VAC

    ASEA BROWN BOVERI

    JOKAB SAFETY

    JSBT3-115VAC

    DISCONTINUED BY MANUFACTURER, SAFTEY RELAY 115VAC
    ✓ IN STOCK!
    Buy Surplus As Low As $127.71
    $127.71
    Repair Yours $300.00
    GRACE R-1A003

    GRACE

    GRACE ENGINEERED PRODUCTS

    R-1A003

    CHEKVOLT INTERFACES, SINGLE-POINT, SINGLE PHASE, INSTALLS IN A 1/2 HOLE, POLYCARBONATE CONSTRUCTION, UV OUTDOOR RATED SO YOU CAN MOUNT IT ANYWHERE, INTEGRAL 6 LEAD WIRE, UL TYPE 4, 4X, 12 RA ...
    ✓ IN STOCK!
    $299.97 Buy New $299.97
    $137.49
    Repair Yours $300.00
    ASEA BROWN BOVERI 1SVR730840R0600

    ASEA BROWN BOVERI

    ABB ROBOTICS

    1SVR730840R0600

    (PRICE/EA) CM-SRS.M1S CURRENT MON. RELAY , 1SVR730840R0600
    ✓ IN STOCK!
    $439.00 Buy Surplus As Low As $163.11
    $163.11
    Repair Yours $300.00
    ASEA BROWN BOVERI 1SVR630736R1300

    ASEA BROWN BOVERI

    1SVR630736R1300

    CM-UFS.2 THREE-PH MONITOR RELAY
    ✓ IN STOCK!
    $449.00 Buy Surplus As Low As $211.41
    $211.41
    Repair Yours $300.00
    ASEA BROWN BOVERI 1SVR730884R4300

    ASEA BROWN BOVERI

    1SVR730884R4300

    RELAY, MULTIFUNCTIONAL, CM SERIES, 300-500 VAC, 50/60/400 HZ, 2 C/O (SPDT) OUTPUT, 250 V / 4 AMP RATED, ON/OFF TRIPPING DELAY, 3-PHASE, (CM-MPS.43S)
    ✓ IN STOCK!
    $486.00 Buy Surplus As Low As $273.00
    $273.00
    Repair Yours $300.00
    ASEA BROWN BOVERI 1SVR730885R3300

    ASEA BROWN BOVERI

    1SVR730885R3300

    RMS MONITORING RELAY, MULTIFUNCTION, 4 AMP, 3 PHASE, 180-280 VAC, 2C/O SPDT, DIN-RAIL 22.5 MM, IP50/IP20, (CM-MPS.21S)
    ✓ IN STOCK!
    $424.00 Buy Surplus As Low As $323.00
    $323.00
    Repair Yours $200.00
    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
    ASEA BROWN BOVERI 1SVR730840R0700

    ASEA BROWN BOVERI

    ABB ROBOTICS

    1SVR730840R0700

    (PRICE/EA) CM-SRS.M2S CURRENT MON. RELAY , 1SVR730840R0700
    ✓ IN STOCK!
    $439.00 Buy Surplus As Low As $334.00
    $334.00
    Repair Yours $300.00
    ASEA BROWN BOVERI 1SVR510730R4400

    ASEA BROWN BOVERI

    1SVR510730R4400

    DISCONTINUED BY MANUFACTURER, GRID FEED MONITORING RELAY, CM RANGE, THREE PHASE, 24 VAC/DC / 230 VAC, (CM-UFD.M32)
    ✓ IN STOCK!
    Buy Surplus As Low As $810.00
    $810.00
    Repair Yours $673.00
    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 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 1SVR760488R8300

    ASEA BROWN BOVERI

    ABB ROBOTICS

    1SVR760488R8300

    THREE PHASE MONITORING RELAY, 450-720 VAC RANGE, 50/60 HZ, 0.1-30 SECOND RANGE, DIN-RAIL MOUNTING, (CM-MPN.62P) , 1SVR760488R8300
    ✓ IN STOCK!
    $583.00 Buy Surplus As Low As $155.68
    $155.68
    Repair Yours $300.00
    BASLER ELECTRIC BE1-59N-A8E-E1L-N0S1F

    BASLER ELECTRIC

    BE1-59N-A8E-E1L-N0S1F

    DISCONTINUED BY MANUFACTURER, GROUND FAULT OVERVOLTAGE RELAY, MODEL BE1-59N, SINGLE PHASE, INPUT 240VAC 60HZ, NOMINAL 20-100VAC PICKUP, OUTPUT 1NO RELAY OVER, TIMING OVER-DIFINITE 0.1-99.9SE ...
    ✓ IN STOCK!
    Buy Surplus As Low As $765.27
    $765.27
    Repair Yours $635.18
    GENERAL ELECTRIC 12IRT51E2A

    GENERAL ELECTRIC

    12IRT51E2A

    DISCONTINUED BY MANUFACTURER, TEMPERATURE RELAY, 100 OHM @ 0 PLATINUM RTD, 80C-160C, 120/240 VAC, 50/60 HZ, .2/2.0 AMP DC TARGET SEAL, 1 ELECTRICALLY SEPERATE N.O., 7 INTERNAL CONNECTIONS FI ...
    ✓ IN STOCK!
    Buy Surplus As Low As $448.77
    $448.77
    Repair Yours $435.65
    DANAHER CONTROLS 4471-60011

    DANAHER CONTROLS

    WARD LEONARD

    4471-60011

    DISCONTINUED BY MANUFACTURER, RELAY, TYPE HR RELAY, 6 POLE, 10 AMP, 600 V MAX, 50/60 HZ
    ✓ IN STOCK!
    Buy Surplus As Low As $59.83
    $59.83
    Repair Yours $300.00
    CONVERTEAM KBCH14001H15MEJ

    CONVERTEAM

    ALSTOM

    KBCH14001H15MEJ

    DISCONTINUED BY MANUFACTURER, RELAY / DIFFERENTIAL PROTECTION, MODEL KBCH140, ALARM / TRIP, PROGRAMMABLE / 8 AUXILIARY, 5 AMP, 48/250 / 100/120 V, 50/60 HZ, FOR TRANSFORMERS AND GENERATORS
    ✓ IN STOCK!
    Buy Surplus As Low As $824.25
    $824.25
    Repair Yours $811.87
    HONEYWELL R8154C1000

    HONEYWELL

    R8154C1000

    DISCONTINUED BY MANUFACTURER, ELECTRIC HEAT RELAY, THREE SWITCHES, 24 V, 60 CY, QUICK CONNECT TERMINAL (LOAD SIDE), LUG CONNECTION (LINE SIDE)
    ✓ IN STOCK!
    Buy Surplus As Low As $123.87
    $123.87
    Repair Yours $300.00
    GENERAL ELECTRIC 36C774137ABG08

    GENERAL ELECTRIC

    36C774137ABG08

    DISCONTINUED BY MANUFACTURER, GROUND FAULT DETECTOR
    ✓ IN STOCK!
    Buy Surplus As Low As $94.48
    $94.48
    Repair Yours $300.00
    CROUZET DUR2-110A

    CROUZET

    SYRELEC

    DUR2-110A

    DISCONTINUED BY MANUFACTURER, VOLTAGE RELAY, 3 PHASE, VOLTAGE RATING: 110VAC, OUTPUT CURRENT:10A, OUTPUT VOLTAGE: 250VAC
    ✓ IN STOCK!
    Buy Surplus As Low As $223.57
    $223.57
    Repair Yours $300.00
    GENERAL ELECTRIC 3S7505HK501A1

    GENERAL ELECTRIC

    3S7505HK501A1

    GROUND FAULT RELAY, 230 VAC, 10 AMP, 8-PIN
    ✓ IN STOCK!
    $34.00 Buy Surplus As Low As $26.00
    $26.00
    SCHWEITZER ENGINEERING 751A01A0X0X71850000

    SCHWEITZER ENGINEERING

    751A01A0X0X71850000

    FEEDER PROTECTION RELAY, SEL-751A, LCD, 125 V, 50/60 HZ, PANEL LED, PROGRAMMABLE PUSHBUTTON, ARC-FLASH MITIGATION, EVENT ANALYSIS
    ✓ IN STOCK!
    $2,391.15 Buy Surplus As Low As $1,208.57
    $1,208.57
    Repair Yours $955.35
    ICM ICM401A

    ICM

    ICM401A

    MONITOR, 3PH, UNIVERSAL, 190-600VAC
    ✓ IN STOCK!
    $82.48 Buy Surplus As Low As $54.44
    $54.44
    GENERAL ELECTRIC 350-E-P5-G5-H-E-S-N-M-1E-D-N

    GENERAL ELECTRIC

    MULTILIN

    350-E-P5-G5-H-E-S-N-M-1E-D-N

    DISCONTINUED BY MANUFACTURER, FEEDER PROTECTION RELAY, LCD, FULL MENU, 10 INPUT, 7 OUTPUT, 5 AMP, 3 PHASE, 120-240 VAC, 125-250 VDC, COPPER / FIBER-MTRJ, MODBUS TCP/IP, ETHERNET, VOLTAGE MET ...
    ✓ IN STOCK!
    Buy Surplus As Low As $2,178.00
    $2,178.00
    Repair Yours $1,446.19
    TOSHIBA RC81C

    TOSHIBA

    RC81C

    DISCONTINUED BY MANUFACTURER, PHASE REVERSAL GROUND FAULT MODULE, OPERATING TIME WITHIN 0.5 SEC, 2-12A RATED CURRENT
    ✓ IN STOCK!
    Buy Surplus As Low As $35.99
    $35.99
    Repair Yours $300.00
    AUTOMATION DIRECT VMR-2C-A-120A

    AUTOMATION DIRECT

    VMR-2C-A-120A

    PROSENSE VOLTAGE MONITOR RELAY, 1-PHASE, SOCKET MOUNT, FINGER-SAFE, 90-150 VAC INPUT VOLTAGE, DPDT, 10A CONTACT RATING, 8-PIN, LED INDICATOR(S), OVERVOLTAGE, UNDERVOLTAGE AND ADJUSTABLE DROP ...
    ✓ IN STOCK!
    $116.00 Buy Surplus As Low As $61.05
    $61.05
    MATSUSHITA ELECTRIC LT48T-24-240V

    MATSUSHITA ELECTRIC

    AROMAT

    LT48T-24-240V

    DIGITAL QUARTZ TIMER, 24-240 V AC/DC, 100 MA MAX, 8 PIN
    ✓ IN STOCK!
    $415.00 Buy Surplus As Low As $36.00
    $36.00
    Repair Yours $300.00
    BASLER ELECTRIC BE1-59-A4E-E1K-B1S3F

    BASLER ELECTRIC

    BE1-59-A4E-E1K-B1S3F

    DISCONTINUED BY MANUFACTURER, OVER VOLTAGE RELAY, INTERNALLY OPERATED, 1 PHASE, INPUT 110-320VAC PICKUP, OUTPUT 1NO RELAY, DEFINITE TIMING, SUPPLY 48VDC, TARGET CURRENT OPERATED, INSTANTANEO ...
    ✓ IN STOCK!
    Buy Surplus As Low As $708.59
    $708.59
    Repair Yours $588.13
    INGERSOLL RAND RLY2547

    INGERSOLL RAND

    TRANE

    RLY2547

    10A SPDT ENCLOSED RELAY
    ✓ IN STOCK!
    $59.15 Buy Surplus As Low As $35.49
    $35.49
    Repair Yours $300.00
    TIME MARK CORP 16-1-L-P

    TIME MARK CORP

    16-1-L-P

    VOLTAGE_FREQUENCY-MONITORS, OVER AND/OR UNDER VOLTAGE MONITOR, 12-30VAC/VDC, SIZE 3.52IN X 2.44IN X 1.75IN
    ✓ IN STOCK!
    $186.00 Buy New $186.00
    $80.36
    Repair Yours $300.00
    TIME MARK CORP 2581-220

    TIME MARK CORP

    2581-220

    3-PHASE-MONITORS,220VAC, SIZE 2IN X 2IN X 1.38IN
    ✓ IN STOCK!
    $117.63 Buy New $117.63
    $68.87
    Repair Yours $300.00
    TIME MARK CORP 2601-28VDC

    TIME MARK CORP

    2601-28VDC

    VOLTAGE FREQUENCY-MONITORS, UNDER-VOLTAGE MONITOR, 24VDC, SIZE 3.52IN X 2.44IN X 1.75IN
    ✓ IN STOCK!
    $164.00 Buy New $164.00
    $49.77
    Repair Yours $300.00
    TIME MARK CORP C2642

    TIME MARK CORP

    C2642

    MONITOR RELAY, 3 PHASE, 480 VAC, 4.8IN X 4.5IN X 3.5IN SIZE, DPDT, SURFACE MOUNT, TRIP DELAY, NO TRIP RESTART, AUTOMATIC RESET
    ✓ IN STOCK!
    $330.77 Buy New $330.77
    $140.80
    Repair Yours $300.00
    TIME MARK CORP D264

    TIME MARK CORP

    D264

    DISCONTINUED BY MANUFACTURER, 3-PHASE MONITOR, NOMINAL AC VOLTAGE: 575 VOLT AC, ADJUSTMENT RANGE: 450-600 VOLT, FREQUENCY: 60 HZ, RESET TYPE: AUTOMATIC 2.5 WATTS, SCREW TERMINAL CONNECTION, ...
    ✓ IN STOCK!
    Buy Surplus As Low As $69.19
    $69.19
    Repair Yours $300.00
    TIME MARK CORP 2628

    TIME MARK CORP

    2628

    VOLTAGE FREQUENCY MONITOR, OVER OR UNDER VOLTAGE MONITOR, 15-260V AC/DC, SIZE 3.52IN X 2.44IN X 1.75IN
    ✓ IN STOCK!
    $233.26 Buy New $233.26
    $126.15
    Repair Yours $300.00
    TIME MARK CORP 272-24

    TIME MARK CORP

    272-24

    CURRENT-MONITORS, 3-PHASE CURRENT UNBALANCE DETECTOR, 1 - 5A, 24VAC, SIZE 6.06IN X 3.88IN X 2.7IN
    ✓ IN STOCK!
    $455.00 Buy New $455.00
    $217.00
    Repair Yours $300.00
    SIEMENS 3RH11222JC40

    SIEMENS

    3RH11222JC40

    CONTROL RELAY. 2NO+2NC
    ✓ IN STOCK!
    Buy Surplus As Low As $162.00
    $162.00
    Repair Yours $300.00
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