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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 601-650 of 805.
    SIEMENS 3UG4582-2AW31

    SIEMENS

    3UG4582-2AW31

    INSULATION MONITORING RELAY FOR NON-GROUNDED (IT) NETWORKS UP TO 250 V AC, 15-400 HZ AND UP TO 300 V DC MEASURING RANGE 1-100 KOHM SUPPLY VOLTAGE 24-240 V AC/DC 22.5 MM, 1 CHANGEOVER CONTACT ...
    ✓ IN STOCK!
    $742.00 Buy Surplus As Low As $446.00
    $446.00
    Repair Yours $371.00
    TIME MARK CORP 2601-240VAC

    TIME MARK CORP

    2601-240VAC

    VOLTAGE FREQUENCY MONITOR, UNDER-VOLTAGE, 200-240VAC, SIZE 3.52IN X 2.44IN X 1.75IN
    ✓ IN STOCK!
    $164.00 Buy New $164.00
    $79.00
    LITTELFUSE 460-L

    LITTELFUSE

    460-L

    PHASE MONITORING RELAY, 460 SERIES, SPDT, 10 A, DIN RAIL, PANEL, SCREW, 240 VAC
    ✓ IN STOCK!
    $156.06 Buy Surplus As Low As $93.63
    $93.63
    Repair Yours $300.00
    SIEMENS 3UG5512-1AR20

    SIEMENS

    3UG5512-1AR20

    LINE MONITORING RELAY, 3 PHASE, 160-690 VAC, 15-70 HZ, FOR PHASE FAILURE, 1 CHANGE OVER CONTACT, SCREW TERMINAL, -25 TO +60 DEGREE C, IP20, SUCCESSOR FOR: 3UG4512-1AR20
    ✓ IN STOCK!
    $360.35 Buy Surplus As Low As $216.21
    $216.21
    Repair Yours $300.00
    LITTELFUSE 102A2

    LITTELFUSE

    102A2

    PHASE RELAY, SPDT, 190-480V, PANEL; PRODUCT RANGE:102A SERIES; CONTACT CONFIGURATION:SPDT; CONTACT CURRENT:10A; RELAY MOUNTING:PANEL MOUNT; RELAY TERMINALS:SCREW; SWITCHING VOLTAGE MAX:240VA ...
    ✓ IN STOCK!
    $246.00 Buy Surplus As Low As $174.29
    $174.29
    Repair Yours $200.00
    LITTELFUSE 35040026

    LITTELFUSE

    35040026

    3-PHASE VOLT MON/ 380-480V/ AD/ BOX
    ✓ IN STOCK!
    $376.07 Buy Surplus As Low As $225.64
    $225.64
    Repair Yours $300.00
    LITTELFUSE 460-15

    LITTELFUSE

    460-15

    3-PHASE VM/ 190-480V/ ADJ VUB/ BOX
    ✓ IN STOCK!
    $254.42 Buy Surplus As Low As $152.65
    $152.65
    Repair Yours $300.00
    ASEA BROWN BOVERI 1SVR730794R3300

    ASEA BROWN BOVERI

    ABB ROBOTICS

    1SVR730794R3300

    (PRICE/EA) CM-PVS.41S THREE-PHASE MON. , 1SVR730794R3300
    ✓ IN STOCK!
    $374.00 Buy Surplus As Low As $203.00
    $203.00
    Repair Yours $300.00
    TIME MARK CORP D263

    TIME MARK CORP

    D263

    POWER MONITOR, 3-PHASE, 575 VAC 60 HZ NOMINAL, 450-575 VAC ADJUST RANGE, 10/15 AMP
    ✓ IN STOCK!
    $185.00 Buy New $185.00
    $111.00
    ASEA BROWN BOVERI 1SVR750488R8300

    ASEA BROWN BOVERI

    ABB ROBOTICS

    1SVR750488R8300

    3-PHASE MULTI-FUNCTIONAL MONITORING RELAY WITH SELECTABLE TRIP DELAY, 450 TO 720 VAC, 2 TO 4 A, 2CO-SPDT CONTACT, 450 TO 720 VAC V COIL
    ✓ IN STOCK!
    $532.55 Buy Surplus As Low As $300.78
    $300.78
    Repair Yours $300.00
    EATON CORPORATION PFR-WMA-105

    EATON CORPORATION

    MOELLER ELECTRIC

    PFR-WMA-105

    MOELLER PFR-WMA-105 MAGNETIC SCREEN
    ✓ IN STOCK!
    $255.00 Buy Surplus As Low As $194.00
    $194.00
    Repair Yours $300.00
    WIELAND SAP-1002

    WIELAND

    SCHLEICHER

    SAP-1002

    PHASE FAILURE MONITORING RELAY, 380-415VAC, 3AC, 50/60HZ
    ✓ IN STOCK!
    $133.00 Buy Surplus As Low As $67.00
    $67.00
    Repair Yours $300.00
    DOLD IK9065.11*

    DOLD

    IK9065.11*

    MEASURING RELAYS - UNDERLOAD - 1 PHASE / 3 PHASE AUTO RESET
    ✓ IN STOCK!
    $143.39 Buy Surplus As Low As $41.04
    $41.04
    ASEA BROWN BOVERI 1SVR730841R0300

    ASEA BROWN BOVERI

    ABB ROBOTICS

    1SVR730841R0300

    (PRICE/EA) CM-SRS.12S CURRENT MON. RELAY , 1SVR730841R0300
    ✓ IN STOCK!
    $543.77 Buy Surplus As Low As $326.26
    $326.26
    Repair Yours $300.00
    ASEA BROWN BOVERI 1SVR730841R1400

    ASEA BROWN BOVERI

    ABB ROBOTICS

    1SVR730841R1400

    (PRICE/EA) CM-SRS.21S CURRENT MON. RELAY , 1SVR730841R1400
    ✓ IN STOCK!
    $324.00 Buy Surplus As Low As $163.00
    $163.00
    Repair Yours $300.00
    ASEA BROWN BOVERI 1SVR730840R0300

    ASEA BROWN BOVERI

    ABB ROBOTICS

    1SVR730840R0300

    (PRICE/EA) CM-SRS.12S CURRENT MON. RELAY , 1SVR730840R0300
    ✓ IN STOCK!
    $543.20 Buy Surplus As Low As $412.83
    $412.83
    Repair Yours $300.00
    ASEA BROWN BOVERI 1SVR730841R1500

    ASEA BROWN BOVERI

    1SVR730841R1500

    RELAY, CURRENT MONITORING, CM-SRS.22S , 1SVR730841R1500
    ✓ IN STOCK!
    $324.00 Buy Surplus As Low As $232.18
    $232.18
    Repair Yours $200.00
    ASEA BROWN BOVERI 1SVR730794R1300

    ASEA BROWN BOVERI

    ABB ROBOTICS

    1SVR730794R1300

    (PRICE/EA) CM-PVS.31S THREE-PHASE MON. , 1SVR730794R1300
    ✓ IN STOCK!
    $461.87 Buy Surplus As Low As $277.12
    $277.12
    Repair Yours $300.00
    ASEA BROWN BOVERI 1SVR730824R9300

    ASEA BROWN BOVERI

    1SVR730824R9300

    PHASE MONITOR RELAY, PHASE FAILURE DETECTION, 3 PHASE, SPDT, DIN RAIL MOUNT, 4 AMP, SCREW TERMINATION, 200-500 VAC, ROHS COMPLIANT
    ✓ IN STOCK!
    $179.00 Buy Surplus As Low As $107.00
    $107.00
    Repair Yours Contact Us
    ASEA BROWN BOVERI 1SVR730774R1300

    ASEA BROWN BOVERI

    1SVR730774R1300

    (PRICE/EA) CM-PAS.31S THREE-PHASE MON. , 1SVR730774R1300
    ✓ IN STOCK!
    $357.12 Buy Surplus As Low As $133.27
    $133.27
    Repair Yours $300.00
    ASEA BROWN BOVERI 1SVR510730R0300

    ASEA BROWN BOVERI

    1SVR510730R0300

    CM-UFS.M21 GRID FEEDING MONITOR
    ✓ IN STOCK!
    $942.00 Buy Surplus As Low As $319.82
    $319.82
    Repair Yours $300.00
    ASEA BROWN BOVERI DDA203AS-63/0.3

    ASEA BROWN BOVERI

    DDA203AS-63/0.3

    RESIDUAL CURRENT DEVICE, 63 AMP, 230-400 V, 3 POLE, 7.6 WATT, A TYPE, 300 MA, SELECTIVE
    ✓ IN STOCK!
    $800.00 Buy Surplus As Low As $608.00
    $608.00
    Repair Yours $399.00
    ASEA BROWN BOVERI DDA803A-100/0.5

    ASEA BROWN BOVERI

    DDA803A-100/0.5

    RESIDUAL CURRENT DEVICE BLOCK, TYPE A, 400/415/690 VAC RATED VOLTAGE, RATED CURRENT: 100A, 50/60HZ, INSTANTANEOUS OPERATING CHARACTERISTIC
    ✓ IN STOCK!
    $1,642.10 Buy Surplus As Low As $822.44
    $822.44
    Repair Yours $608.22
    INGERSOLL RAND CNT0695

    INGERSOLL RAND

    TRANE

    CNT0695

    CONTROL RELAY
    ✓ IN STOCK!
    $145.00 Buy Surplus As Low As $111.00
    $111.00
    Repair Yours $300.00
    INGERSOLL RAND RLY0983

    INGERSOLL RAND

    TRANE

    RLY0983

    PILOT CONTROL RELAY, 120 VOLT AC, 50/60 HZ, 24 VOLT COIL, 6 BLADE STYLE CONNECTIONS
    ✓ IN STOCK!
    $67.00 Buy Surplus As Low As $45.00
    $45.00
    Repair Yours $300.00
    INGERSOLL RAND RLY1097

    INGERSOLL RAND

    TRANE

    RLY1097

    DISCONTINUED BY MANUFACTURER, START RELAY, SPST 35 AMP, REPLACES RLY1097, HVAC PARTS, SAME AS 3ARR3-J4A4, B100201P06,RLY1097,RLY-01097,RLY3715
    ✓ IN STOCK!
    Buy Surplus As Low As $60.00
    $60.00
    INGERSOLL RAND RLY1237

    INGERSOLL RAND

    TRANE

    RLY1237

    TRANE RELAYS, SWITCH AND LIMIT CONTROLS, 12/8A @125/250V, 24 VAC COIL
    ✓ IN STOCK!
    $227.70 Buy Surplus As Low As $133.86
    $133.86
    Repair Yours $300.00
    INGERSOLL RAND RLY1703

    INGERSOLL RAND

    TRANE

    RLY1703

    24V 8A SPNO GP RELAY
    ✓ IN STOCK!
    $35.27 Buy Surplus As Low As $21.16
    $21.16
    Repair Yours Contact Us
    SIEMENS 3UG4625-1CW30

    SIEMENS

    3UG4625-1CW30

    MONITORING RELAY, DIGITAL, FOR RESIDUAL CURRENT MONITORING, 0.03-4 AMP, 24-240 VAC/DC, 50/60 HZ, 2 CHANGE OVER CONTACTS, SCREW TYPE TERMINAL, DIN RAIL MOUNT
    ✓ IN STOCK!
    $354.00 Buy Surplus As Low As $148.44
    $148.44
    Repair Yours $200.00
    TIME MARK CORP 421

    TIME MARK CORP

    421

    SPECIAL-CONTROL, OVER/UNDER MOTOR LOAD MONITOR, 100-250VAC, SIZE 3.88IN X 6.06IN X 2.63IN
    ✓ IN STOCK!
    $404.00 Buy New $404.00
    $195.94
    Repair Yours $300.00
    TIME MARK CORP EX257B

    TIME MARK CORP

    EX257B

    3-PHASE MONITOR, NOMINAL AC VOLTAGE (PHASE TO PHASE) 380 VAC, YELLOW CASE, 300-400 VAC ADJUSTMENT RANGE, 50 HZ FREQUENCY, 3.75W POWER CONSUMPTION, 8 PIN
    ✓ IN STOCK!
    $116.30 Buy New $116.30
    $70.00
    Repair Yours $300.00
    TIME MARK CORP EX263

    TIME MARK CORP

    EX263

    3-PHASE-MONITORS,380VAC,50 HZ, SIZE 6.06IN X 3.88IN X 2.08IN
    ✓ IN STOCK!
    $185.00 Buy New $185.00
    $40.49
    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
    TIME MARK CORP 273-5-24

    TIME MARK CORP

    273-5-24

    CURRENT-MONITORS, SINGLE PHASE OVER/UNDER CURRENT MONITOR, 10 AMP, 24 V COIL, SINGLE PHASE, 8 PIN, 0.5 - 5A, 24VAC, SIZE 3.25IN X 1.95IN X 1.95IN
    ✓ IN STOCK!
    $146.21 Buy New $146.21
    $67.41
    Repair Yours $300.00
    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
    INVENSYS FBM207B

    INVENSYS

    FOXBORO

    FBM207B

    DISCONTINUED BY MANUFACTURER, VOLTAGE MONITOR, CONTACT SENSE INPUT MODULE, CHANNEL ISOLATION, 16-CHANNEL, 24 VDC
    ✓ IN STOCK!
    Buy Surplus As Low As $252.79
    $252.79
    Repair Yours $300.00
    GENERAL ELECTRIC IC2820-C100M3

    GENERAL ELECTRIC

    IC2820-C100M3

    RELAY, GROUND FAULT, 10AMP, 600V,
    ✓ IN STOCK!
    $4,958.33 Buy Surplus As Low As $3,570.00
    $3,570.00
    Repair Yours $2,963.10
    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
    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
    WESTINGHOUSE 1293C47G12

    WESTINGHOUSE

    1293C47G12

    DISCONTINUED BY MANUFACTURER, GROUND FAULT RELAY, (P/N 255P156H06C), .125 AMPS, 120 VAC, 50/60 HZ, 28-125 VDC OUTPUT, 255P156H06C
    ✓ IN STOCK!
    Buy Surplus As Low As $891.63
    $891.63
    R-K ELECTRONICS DPM-120A-B

    R-K ELECTRONICS

    DPM-120A-B

    VOLTAGE MONITOR, W/DISPLAY, DIGITAL, MULTI-RANGE, 3 PHASE, 200-240/600 VAC, 120 VAC SUPPLY, SURFACE MOUNT
    ✓ IN STOCK!
    $176.13 Buy New $176.13
    $103.00
    Repair Yours $300.00
    EATON CORPORATION 8137869B0

    EATON CORPORATION

    COOPER POWER

    8137869B0

    FAULT INDICATOR LINAM 800AMP 1.81IN OD 3Q97
    ✓ IN STOCK!
    $57.60 Buy Surplus As Low As $24.60
    $24.60
    GOTRONIC 559100

    GOTRONIC

    559100

    POWER LINE MONITOR,120VAC,10AMP,4-5 SEC
    ✓ IN STOCK!
    Buy Surplus As Low As $142.90
    $142.90
    Repair Yours $300.00
    GOTRONIC 555100

    GOTRONIC

    555100

    DISCONTINUED BY MANUFACTURER, POWER LINE MONITOR, 480VAC, 50/60HZ
    ✓ IN STOCK!
    Buy Surplus As Low As $498.64
    $498.64
    Repair Yours $448.20
    GOTRONIC 621102

    GOTRONIC

    621102

    MOTION CONTROL UNDERSPEED SWITCH 120VAC
    ✓ IN STOCK!
    Buy Surplus As Low As $368.99
    $368.99
    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
    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 $379.42
    $379.42
    Repair Yours $300.00
    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 $80.90
    $80.90
    SCHNEIDER ELECTRIC RM35UB3N30

    SCHNEIDER ELECTRIC

    SQUARE D

    RM35UB3N30

    VOLTAGE CONTROL RELAY, DPDT, 114V-329V; PRODUCT RANGE:ZELIO RM35UB3 SERIES; CONTACT CONFIGURATION:DPDT; CONTACT CURRENT:5A; RELAY MOUNTING:DIN RAIL; RELAY TERMINALS:SCREW; SWITCHING VOLTAGE ...
    ✓ IN STOCK!
    $448.27 Buy Surplus As Low As $358.62
    $358.62
    Repair Yours $300.00
    SCHNEIDER ELECTRIC RM3TR112VS7

    SCHNEIDER ELECTRIC

    TELEMECANIQUE

    RM3TR112VS7

    DISCONTINUED BY MANUFACTURER, VOLTAGE LOSS RELAY, 3 PHASE, 380-420 VAC, 50/60 HZ, DIN RAIL MOUNT
    ✓ IN STOCK!
    Buy Surplus As Low As $370.80
    $370.80
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