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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 301-350 of 849.
    THYTRONIC RMT/3

    THYTRONIC

    RMT/3

    DISCONTINUED BY MANUFACTURER, EARTH FAULT RELAY, 96X96MM, PANEL MOUNT
    ✓ IN STOCK!
    Buy Surplus As Low As $150.00
    $150.00
    Repair Yours $200.00
    SIEMENS 3UG45811AW30

    SIEMENS

    3UG45811AW30

    INSULATION MONITORING RELAY, 400VAC, 1CO, N75, CONTROLS - MONITORING 3UG3
    ✓ IN STOCK!
    $613.00 Buy Surplus As Low As $405.00
    $405.00
    Repair Yours $306.00
    BENDER IR470LY-4021

    BENDER

    IR470LY-4021

    DISCONTINUED BY MANUFACTURER, INSULATION MONITORING DEVICE, 5 AMP, 24 VDC, 0-790 VAC, 3 VA, 50-40 HZ
    ✓ IN STOCK!
    Buy Surplus As Low As $1,076.07
    $1,076.07
    Repair Yours $996.00
    TYCO 565-558

    TYCO

    SIMPLEXGRINNELL

    565-558

    4009 EARTH DETECT BOARD ASSEMBLY
    ✓ IN STOCK!
    $84.00 Buy Surplus As Low As $50.40
    $50.40
    Repair Yours Contact Us
    EXTECH GRT300

    EXTECH

    GRT300

    4-WIRE, EARTH GROUND RESISTANCE TESTER
    $1,436.00 Buy Surplus As Low As $862.00
    $862.00
    Repair Yours $716.00
    EMOTRON EL-FI-M10

    EMOTRON

    EL-FI-M10

    DISCONTINUED BY MANUFACTURER, SHAFT POWER MONITOR, 1.5AMP, 100-690VAC, 50/60HZ, REPLACEMENT: EL-FI-M20
    ✓ IN STOCK!
    Buy Surplus As Low As $1,050.00
    $1,050.00
    Repair Yours $880.00
    CROUZET DSR-12D

    CROUZET

    DSR-12D

    UNDERVOLTAGE MONITORING RELAY, DIN RAIL, SPDT 10A, 12 VDC, CAN BE REPLACED BY PN DSR110A. DIFFERENCE: 110V INPUT INSTEAD OF 12V. NEEDED: A DIFFERENT INPUT POWER IS NEEDED
    ✓ IN STOCK!
    Buy Surplus As Low As $136.30
    $136.30
    Repair Yours Contact Us
    CROUZET DUR24A

    CROUZET

    DUR24A

    VOLTAGE MONITORING RELAY, DIN RAIL, SPDT 10A, 24 VAC, CAN BE REPLACED BY PN DUR110A. DIFFERENCE: 110V INPUT INSTEAD OF 24V. NEEDED: A DIFFERENT INPUT POWER IS NEEDED
    ✓ IN STOCK!
    Buy Surplus As Low As $139.00
    $139.00
    Repair Yours $200.00
    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
    R-K ELECTRONICS TVM-400-20-2002

    R-K ELECTRONICS

    TVM-400-20-2002

    UNDER & OVER VOLTAGE 3 PHASE VOLTAGE MONITOR, UNDERVOLTAGE - OVER VOLTAGE - PHASE LOSS - PHASE ROTATION, ADJUSTABLE 410 TO 490VAC 3Ø, 10PCT, 2 SECOND PICK-UP & DROP-OUT DELAY, BASE KEY POSIT ...
    ✓ IN STOCK!
    $150.00 Buy New $150.00
    $90.00
    Repair Yours Contact Us
    R-K ELECTRONICS PVC-200-AR

    R-K ELECTRONICS

    PVC-200-AR

    PHASE LOSS & PHASE REVERSAL RELAY, LOW VOLTAGE, 208 TO 240VAC 3, 50/60 HZ, DPDT 600VAC CONTACTS, SCREW TERMINALS, SURFACE MOUNTING
    ✓ IN STOCK!
    $214.74 Buy New $214.74
    $163.20
    Repair Yours $200.00
    R-K ELECTRONICS MVP-A1C

    R-K ELECTRONICS

    MVP-A1C

    MULTI-RANGE 3 PHASE VOLTAGE MONITOR (200 TO 480VAC, 3Ø), SELF-POWERED, 8-PIN BASE, SPDT, CONTACTS, SOCKET & HOLDDOWN INCLUDED
    ✓ IN STOCK!
    $268.00 Buy New $268.00
    $161.00
    Repair Yours $200.00
    R-K ELECTRONICS PRRO-300

    R-K ELECTRONICS

    PRRO-300

    PHASE LOSS & PHASE REVERSAL RELAY, 380 TO 415VAC 3Ø, 50/60 HZ, SPDT 240VAC CONTACTS, SCREW TERMINALS, SURFACE MOUNTING
    ✓ IN STOCK!
    $230.53 Buy New $230.53
    $175.20
    Repair Yours $200.00
    TOTALINE P283-0293

    TOTALINE

    P283-0293

    FAN RELAY 24V-COIL SPDT GENERAL PURPOSE
    ✓ IN STOCK!
    $31.00 Buy Surplus As Low As $24.00
    $24.00
    Repair Yours Contact Us
    TIME MARK CORP AC160B240

    TIME MARK CORP

    AC160B240

    RELAY, VOLTAGE MONITORING, 240 VAC, SPDT, 10A/240VAC, SCREW TERMINAL, 160 SERIES
    ✓ IN STOCK!
    $251.00 Buy New $251.00
    $192.00
    Repair Yours $200.00
    INVENSYS AE-504

    INVENSYS

    BARBER COLMAN

    AE-504

    PARALLELING RELAY, ACTUATOR OR PANEL MOUNT, DPDT (SERIES 90)
    ✓ IN STOCK!
    $471.00 Buy Surplus As Low As $303.53
    $303.53
    Repair Yours $251.93
    SCHWEITZER ENGINEERING 0501003X5625XB

    SCHWEITZER ENGINEERING

    0501003X5625XB

    RELAY DUAL OVERCURRENT SEL-501 5PH 125V 5.5W 60HZ
    ✓ IN STOCK!
    $1,287.90 Buy Surplus As Low As $850.50
    $850.50
    Repair Yours $712.97
    WESTINGHOUSE BE1-851-G5-N1H0N

    WESTINGHOUSE

    BE1-851-G5-N1H0N

    DISCONTINUED BY MANUFACTURER, OVERCURRENT RELAY, BE1-851 SERIES, 48-125 VAC/VDC, 5 AMP
    ✓ IN STOCK!
    Buy Surplus As Low As $1,340.64
    $1,340.64
    Repair Yours $878.47
    FRAKO EMR-1100

    FRAKO

    EMR-1100

    DISCONTINUED BY MANUFACTURER, REACTIVE POWER CONTROL RELAY, SINGLE PHASE, 220-240 VAC OPERATING VOLTAGE, 100-690 VAC MEASUREMENT VOLTAGE, 50/60 HZ POWER FREQUENCY, 20 MA
    ✓ IN STOCK!
    Buy Surplus As Low As $349.00
    $349.00
    Repair Yours $290.00
    GENERAL ELECTRIC 12HAA15E1

    GENERAL ELECTRIC

    12HAA15E1

    DISCONTINUED BY MANUFACTURER, AUXILIARY CURRENT RELAY, DC 0.2/2.0AMP
    ✓ IN STOCK!
    Buy Surplus As Low As $669.60
    $669.60
    Repair Yours $555.77
    SIEMENS 3TX7015-1BB02

    SIEMENS

    3TX7015-1BB02

    DISCONTINUED BY MANUFACTURER, INPUT COUPLER, W/ PLUG-IN RELAY, 1CO CONTACT, SPRING-TYPE TERMINAL, 24V AC/DC, 50HZ
    ✓ IN STOCK!
    Buy Surplus As Low As $75.00
    $75.00
    GENERAL ELECTRIC 12CEY52A1D

    GENERAL ELECTRIC

    12CEY52A1D

    DISCONTINUED BY MANUFACTURER, DISTANCE RELAY, 120 V, 5 AMP, 60 CYCLE, 1.3 OHM
    ✓ IN STOCK!
    Buy Surplus As Low As $2,400.00
    $2,400.00
    Repair Yours $1,992.00
    GENERAL ELECTRIC 12SBC23B1D

    GENERAL ELECTRIC

    12SBC23B1D

    DISCONTINUED BY MANUFACTURER, STATIC BREAKER BACKUP RELAY, SBC TYPE, 125 VDC, 10 AMPS, 60 HZ
    ✓ IN STOCK!
    Buy Surplus As Low As $3,427.20
    $3,427.20
    Repair Yours $2,844.58
    WESTINGHOUSE 774B470A12

    WESTINGHOUSE

    774B470A12

    DISCONTINUED BY MANUFACTURER, RELAY AUXILIARY 125VDC
    ✓ IN STOCK!
    Buy Surplus As Low As $669.60
    $669.60
    Repair Yours $555.77
    SIEMENS 3TH2040-0BW4

    SIEMENS

    3TH2040-0BW4

    DISCONTINUED BY MANUFACTURER, CONTACTOR RELAY, DC OPERATION, 4 NORMALLY OPEN, 48 VDC
    ✓ IN STOCK!
    Buy Surplus As Low As $253.47
    $253.47
    Repair Yours $264.00
    ASEA BROWN BOVERI FCX-103B/1

    ASEA BROWN BOVERI

    BBC METRAWATT

    FCX-103B/1

    RELAY FREQUENCY 110/110/200/220V 65/391HZ
    ✓ IN STOCK!
    Buy Surplus As Low As $810.00
    $810.00
    Repair Yours $680.00
    WESTINGHOUSE BE1-51-K1E-Z1O-A1N0F

    WESTINGHOUSE

    BE1-51-K1E-Z1O-A1N0F

    RELAY ELECTRIC GROUND FAULT OVERVOLTAGE PROTECTIVE
    ✓ IN STOCK!
    $1,431.00 Buy Surplus As Low As $1,088.00
    $1,088.00
    Repair Yours $721.00
    MACROMATIC PMPU-FA8

    MACROMATIC

    PMPU-FA8

    3-PHASE MONITOR RELAY, 190-500 VAC, 8 PIN PLUG-IN 10 AMP SPDT RELAY, PHASE LOSS, REVERSAL, UNBALANCE, OVER/UNDER VOLTAGE - FIXED
    ✓ IN STOCK!
    $173.00 Buy New $173.00
    $104.00
    Repair Yours Contact Us
    WESTINGHOUSE 5264C09H02

    WESTINGHOUSE

    5264C09H02

    DISCONTINUED BY MANUFACTURER, GROUNDGARD RELAY, 10 AMP, 250 VAC, 50/60 HZ, 125 VDC
    ✓ IN STOCK!
    Buy Surplus As Low As $1,283.04
    $1,283.04
    Repair Yours $968.11
    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 $121.00
    $121.00
    Repair Yours Contact Us
    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 $182.00 $90.00
    $182.00 $90.00
    Repair Yours $200.00
    ASEA BROWN BOVERI 1SVR730841R0500

    ASEA BROWN BOVERI

    1SVR730841R0500

    (PRICE/EA) CM-SRS.22S CURRENT MON. RELAY
    ✓ IN STOCK!
    $252.63 Buy Surplus As Low As $192.00
    $192.00
    Repair Yours $200.00
    GENERAL ELECTRIC RL4RA022TW

    GENERAL ELECTRIC

    RL4RA022TW

    RL4RA022TW GE RELAY 2N/O 2N/C AC COIL 415V
    ✓ IN STOCK!
    $54.96 Buy Surplus As Low As $36.46
    $36.46
    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!
    $456.00 Buy New $456.00
    $347.00
    Repair Yours $200.00
    ASEA BROWN BOVERI 1SVR730840R0600

    ASEA BROWN BOVERI

    1SVR730840R0600

    (PRICE/EA) CM-SRS.M1S CURRENT MON. RELAY
    ✓ IN STOCK!
    $302.05 Buy Surplus As Low As $181.23
    $181.23
    Repair Yours $200.00
    ASEA BROWN BOVERI 1SVR730774R3300

    ASEA BROWN BOVERI

    1SVR730774R3300

    (PRICE/EA) CM-PAS.41S THREE-PHASE MON.
    ✓ IN STOCK!
    $276.00 Buy Surplus As Low As $165.60
    $165.60
    Repair Yours $200.00
    ASEA BROWN BOVERI 1SVR730831R1400

    ASEA BROWN BOVERI

    1SVR730831R1400

    VOLTAGE MONITORING RELAY, CM-ESS.2S, SINGLE PHASE, 220-240 VAC, 3-600 VRMS, 2 C/O, TIME RANGE: 0 S OR 0.1-30 S TRIPPING DELAY (ON), SCREW TERMINALS, DIN RAIL MOUNTABLE
    ✓ IN STOCK!
    $487.00 Buy Surplus As Low As $293.00
    $293.00
    Repair Yours $244.00
    ASEA BROWN BOVERI 1SVR730830R0400

    ASEA BROWN BOVERI

    1SVR730830R0400

    VOLTAGE MONITORING RELAY, 4 AMP, 24-240 VAC/DC, SCREW TYPE TERMINALS, 2 C/O SPDT CONTACTS, 10 MA / 24 V MINIMUM SWITCHING CAPACITY, -20 TO +60 DEGREE C, IP20/50, (CM-ESS.2S)
    ✓ IN STOCK!
    $252.32 Buy Surplus As Low As $191.76
    $191.76
    ASEA BROWN BOVERI 1SVR630736R1300

    ASEA BROWN BOVERI

    1SVR630736R1300

    CM-UFS.2 THREE-PH MONITOR RELAY
    ✓ IN STOCK!
    $391.50 Buy Surplus As Low As $297.90
    $297.90
    Repair Yours $217.00
    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!
    $440.00 Buy Surplus As Low As $264.00
    $264.00
    Repair Yours $200.00
    ASEA BROWN BOVERI 1SVR730885R3300

    ASEA BROWN BOVERI

    1SVR730885R3300

    RMS MONITORING RELAY, MULTIFUNCTION, 3 PHASE, (CM-MPS.21S)
    ✓ IN STOCK!
    $245.89 Buy Surplus As Low As $186.88
    $186.88
    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
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