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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 849.
    EATON CORPORATION EASY821-DC-TC

    EATON CORPORATION

    CUTLER HAMMER

    EASY821-DC-TC

    EASY PROGRAMMABLE RELAY, 800 SERIES, 24 V DC, 12 DIGITAL INPUTS, 8 TRANSISTOR OUTPUTS, INCLUDES CLOCK AND DISPLAY, OPTIONAL 4 ANALOG INPUTS
    ✓ IN STOCK!
    Buy Surplus As Low As $666.00
    $666.00
    Repair Yours $553.00
    PEPPERL & FUCHS KHU8-DW-1.D

    PEPPERL & FUCHS

    KHU8-DW-1.D

    DISCONTINUED BY MANUFACTURER, ROTATION SPEED MONITOR, 5KHZ, 1 PRE-SELECT VALUE WITH RELAY OUTPUT AND LED INDICATOR, MULTI-RANGE POWER PACK, 2-, 3-, 4-WIRE AND NAMUR SENSORS AS WELL AS ROTARY ...
    ✓ IN STOCK!
    Buy Surplus As Low As $334.00
    $334.00
    Repair Yours $274.00
    ASEA BROWN BOVERI 1SVR730794R3300

    ASEA BROWN BOVERI

    1SVR730794R3300

    (PRICE/EA) CM-PVS.41S THREE-PHASE MON.
    ✓ IN STOCK!
    $364.00 Buy Surplus As Low As $203.00
    $203.00
    Repair Yours $200.00
    ASEA BROWN BOVERI 1SVR750488R8300

    ASEA BROWN BOVERI

    1SVR750488R8300

    (PRICE/EA) CM-MPN.62S THREE-PHASE MON.
    ✓ IN STOCK!
    $340.00 Buy Surplus As Low As $204.00
    $204.00
    Repair Yours $200.00
    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 $200.00
    GENERAL ELECTRIC MCRC040ATC

    GENERAL ELECTRIC

    MCRC040ATC

    MCRC040ATC GE RELAY 4NO 16A ITH 32V DC COIL
    ✓ IN STOCK!
    $45.58 Buy Surplus As Low As $29.49
    $29.49
    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 Contact Us
    DOLD IK9065.11*

    DOLD

    IK9065.11*

    MEASURING RELAYS - UNDERLOAD - 1 PHASE / 3 PHASE AUTO RESET
    ✓ IN STOCK!
    $142.10 Buy Surplus As Low As $72.92
    $72.92
    ASEA BROWN BOVERI 1SVR730840R0300

    ASEA BROWN BOVERI

    1SVR730840R0300

    (PRICE/EA) CM-SRS.12S CURRENT MON. RELAY
    ✓ IN STOCK!
    $271.58 Buy Surplus As Low As $206.40
    $206.40
    Repair Yours $200.00
    ASEA BROWN BOVERI 1SVR730841R1500

    ASEA BROWN BOVERI

    1SVR730841R1500

    RELAY, CURRENT MONITORING, CM-SRS.22S
    ✓ IN STOCK!
    $315.00 Buy Surplus As Low As $240.00
    $240.00
    Repair Yours $200.00
    ASEA BROWN BOVERI 1SVR730774R1300

    ASEA BROWN BOVERI

    1SVR730774R1300

    (PRICE/EA) CM-PAS.31S THREE-PHASE MON.
    ✓ IN STOCK!
    $246.80 Buy Surplus As Low As $148.08
    $148.08
    Repair Yours $200.00
    ASEA BROWN BOVERI 1SVR510730R0300

    ASEA BROWN BOVERI

    1SVR510730R0300

    CM-UFS.M21 GRID FEEDING MONITOR
    ✓ IN STOCK!
    $658.08 Buy Surplus As Low As $394.85
    $394.85
    Repair Yours $327.72
    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!
    $1,221.32 Buy Surplus As Low As $928.20
    $928.20
    Repair Yours $608.22
    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!
    $60.00 Buy Surplus As Low As $40.00
    $40.00
    Repair Yours Contact Us
    INGERSOLL RAND RLY1237

    INGERSOLL RAND

    TRANE

    RLY1237

    TRANE RELAYS, SWITCH AND LIMIT CONTROLS, 12/8A @125/250V, 24 VAC COIL
    ✓ IN STOCK!
    $217.44 Buy Surplus As Low As $165.26
    $165.26
    Repair Yours $200.00
    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!
    $280.00 Buy Surplus As Low As $168.00
    $168.00
    Repair Yours $200.00
    TIME MARK CORP A263

    TIME MARK CORP

    A263

    3-PHASE-MONITORS,120VAC, SIZE 6.06IN X 3.88IN X 2.08IN
    ✓ IN STOCK!
    $144.00 Buy New $144.00
    $87.00
    Repair Yours Contact Us
    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!
    $92.57 Buy New $92.57
    $55.54
    Repair Yours Contact Us
    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!
    $232.20 Buy New $232.20
    $139.32
    Repair Yours $200.00
    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 $243.00
    $243.00
    Repair Yours $200.00
    EATON CORPORATION D3PR3P1

    EATON CORPORATION

    CUTLER HAMMER

    D3PR3P1

    RELAY, 3PDT W/TEST BUTTON , D3PR3P1
    ✓ IN STOCK!
    $26.00 Buy Surplus As Low As $16.00
    $16.00
    GENERAL ELECTRIC IC2820-C100M3

    GENERAL ELECTRIC

    IC2820-C100M3

    RELAY, GROUND FAULT, 10AMP, 600V,
    ✓ IN STOCK!
    $5,950.00 Buy Surplus As Low As $3,570.00
    $3,570.00
    Repair Yours $2,963.10
    GENERAL ELECTRIC TGSR06

    GENERAL ELECTRIC

    TGSR06

    RELAY GROUND BREAK 5-60A 0-0.1SEC 120VAC/125VDC
    ✓ IN STOCK!
    Buy Surplus As Low As $31.00
    $31.00
    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
    WEG RPW-FSF-Z34

    WEG

    RPW-FSF-Z34

    PHASE LOSS & PHASE SEQUENCE RELAY 220/240V 50/60HZ
    ✓ IN STOCK!
    $61.00 Buy Surplus As Low As $47.00
    $47.00
    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 $970.00
    $970.00
    GENERAL ELECTRIC 12HAA15B5F

    GENERAL ELECTRIC

    12HAA15B5F

    DISCONTINUED BY MANUFACTURER, RELAY AUXILIARY W/CASE, 125VDC
    ✓ IN STOCK!
    Buy Surplus As Low As $612.00
    $612.00
    Repair Yours $507.96
    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 $37.49
    $37.49
    GOTRONIC 559100

    GOTRONIC

    559100

    POWER LINE MONITOR,120VAC,10AMP,4-5 SEC
    ✓ IN STOCK!
    Buy Surplus As Low As $196.02
    $196.02
    Repair Yours $200.00
    GOTRONIC 555100

    GOTRONIC

    555100

    DISCONTINUED BY MANUFACTURER, POWER LINE MONITOR, 480VAC, 50/60HZ
    ✓ IN STOCK!
    Buy Surplus As Low As $684.00
    $684.00
    Repair Yours $448.20
    GOTRONIC 621102

    GOTRONIC

    621102

    MOTION CONTROL UNDERSPEED SWITCH 120VAC
    ✓ IN STOCK!
    Buy Surplus As Low As $506.16
    $506.16
    Repair Yours $370.00
    GENERAL ELECTRIC 704169

    GENERAL ELECTRIC

    704169

    DISCONTINUED BY MANUFACTURER, DIFERENCIAL RD5 220V 50/60HZ
    ✓ IN STOCK!
    Buy Surplus As Low As $403.20
    $403.20
    Repair Yours $334.66
    REGAL REXNORD 303-237

    REGAL REXNORD

    UNICO

    303-237

    DISCONTINUED BY MANUFACTURER, RELAY MODULE, LNO CONVERTER, INTERFACE ADAPTER FIBER OPTIC
    ✓ IN STOCK!
    Buy Surplus As Low As $327.00 $162.00
    $327.00 $162.00
    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 $364.00
    $364.00
    Repair Yours $299.00
    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 $138.24
    $138.24
    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!
    $597.00 Buy Surplus As Low As $454.00
    $454.00
    Repair Yours $214.18
    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 $360.00
    $360.00
    SCHNEIDER ELECTRIC S48891

    SCHNEIDER ELECTRIC

    SQUARE D

    S48891

    GROUND FAULT INTERFACE MODULE, USED ON: ,M/P/R FRAME, NS630B, NS3200 ,ELECTRONIC TRIP CIRCUIT BREAKER
    ✓ IN STOCK!
    Buy Surplus As Low As $1,986.00
    $1,986.00
    Repair Yours $1,350.00
    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 $240.00
    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!
    $243.00 Buy Surplus As Low As $146.00
    $146.00
    Repair Yours $200.00
    SCHNEIDER ELECTRIC GP-200BW

    SCHNEIDER ELECTRIC

    SQUARE D

    GP-200BW

    DISCONTINUED BY MANUFACTURER, RELAY, 600VAC, B-CURVE
    ✓ IN STOCK!
    Buy Surplus As Low As $322.82
    $322.82
    Repair Yours $299.00
    SIEMENS 3RQ3118-1AB00

    SIEMENS

    3RQ3118-1AB00

    OUTPUT COUPLER, WITH PLUG-IN RELAY, 1 CHANGE-OVER CONTACT SCREW TERMINAL, 6 AMP, 24 VAC/DC, 50/60 HZ, DIN RAIL MOUNT
    ✓ IN STOCK!
    $73.00 Buy Surplus As Low As $44.00
    $44.00
    INGERSOLL RAND RLY3715

    INGERSOLL RAND

    TRANE

    RLY3715

    START RELAY, SPST 35 AMP, REPLACES RLY1097, HVAC PARTS, SAME AS 3ARR3-J4A4, B100201P06,RLY1097,RLY-01097,RLY3715
    ✓ IN STOCK!
    $56.25 Buy Surplus As Low As $34.00
    $34.00
    Repair Yours Contact Us
    ASEA BROWN BOVERI 3AUA0000139144

    ASEA BROWN BOVERI

    3AUA0000139144

    FAN KIT, ACH550, R4 & R6 FRAMES, NEMA 1, INCLUDES HEATSINK FAN, RETAINER
    $445.00 Buy Surplus As Low As $268.00
    $268.00
    ASEA BROWN BOVERI 412N0195

    ASEA BROWN BOVERI

    412N0195

    UNDERVOLTAGE PHASE SEQUENCE RELAY 24/32VDC
    ✓ IN STOCK!
    $915.84 Buy Surplus As Low As $549.50
    $549.50
    Repair Yours $456.09
    ASEA BROWN BOVERI 1495B30A22

    ASEA BROWN BOVERI

    1495B30A22

    DISCONTINUED BY MANUFACTURER, VOLTAGE RELAY, 120V, 250VDC, IVS 55-140VAC, TYPE CV7
    ✓ IN STOCK!
    Buy Surplus As Low As $612.00 $450.00
    $612.00 $450.00
    Repair Yours $507.96
    MARSH BELLOFRAM ARA-120-AFE

    MARSH BELLOFRAM

    ATC DIVERSIFIED ELECTRONICS

    ARA-120-AFE

    RELAY, ARA SERIES, ALTERNATING RELAY, SURFACE-MOUNT, TRIPLEXOR, 120 VAC, 10 AMP
    ✓ IN STOCK!
    $454.00 Buy New $454.00
    $273.00
    Repair Yours $222.00
    MARSH BELLOFRAM AC-301-440

    MARSH BELLOFRAM

    ATC DIVERSIFIED ELECTRONICS

    AC-301-440

    THREE PHASE MONITOR, AC-301 SERIES, DELAY-ON-MAKE, 430-480 VAC OPERATING, 2 SECOND DELAY ON DROP OUT
    ✓ IN STOCK!
    $483.00 Buy New $483.00
    $291.00
    Repair Yours $200.00
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