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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 401-450 of 849.
    OMRON K8AB-VW3-AC200/230

    OMRON

    K8AB-VW3-AC200/230

    VOLTAGE RELAY 6A 1PH 200/230VAC 5VA 50/60HZ
    ✓ IN STOCK!
    $124.96 Buy Surplus As Low As $70.52
    $70.52
    ENDRESS & HAUSER CM42-IAA101EAE00

    ENDRESS & HAUSER

    CM42-IAA101EAE00

    TRANSMITTER LIQUID ANALYSIS MULTIPARAMETER, LOOP-POWERED. WORLDWIDE APPROVALS, HAZARDOUS AREAS DEVELOPED ACCORDING TO IEC 61508, PH/ORP, CONDUCTIVITY,OXYGEN (DO) DIGITAL SENSORS, MEMOSENS PR ...
    ✓ IN STOCK!
    $5,784.00 Buy Surplus As Low As $3,818.00
    $3,818.00
    Repair Yours $2,798.00
    GIC MJA3BK

    GIC

    MJA3BK

    PTC THERMISTOR RELAY, PD225 SERIES, 24 VAC/DC -20/+10%, 2 C/O CONFIGURATION, 2 VA POWER CONSUMPTION, -15 TO 60 DEGREE, IP20
    ✓ IN STOCK!
    $110.00 Buy Surplus As Low As $84.00
    $84.00
    GIC MA51BC

    GIC

    MA51BC

    VOLTAGE MONITORING RELAY, SPDT, 415VAC, PRODUCT RANGE:SM 301 SERIES, CONTACT CONFIGURATION:SPDT, CONTACT CURRENT:5A, RELAY MOUNTING:DIN RAIL, CONTACT VOLTAGE VAC:250V, RELAY TERMINALS:SCREW, ...
    ✓ IN STOCK!
    $71.00 Buy Surplus As Low As $28.97
    $28.97
    Repair Yours Contact Us
    WESTINGHOUSE 292B714A09

    WESTINGHOUSE

    292B714A09

    DIRECTIONAL OVERCURRENT RELAY, TYPE IRD-81, .5-2.5AMP, 60HZ, 48/125/250VDC
    ✓ IN STOCK!
    $1,383.30 Buy Surplus As Low As $829.98
    $829.98
    Repair Yours $542.53
    HAYASHI WATCH-WORKS LA-150RX-P

    HAYASHI WATCH-WORKS

    LA-150RX-P

    DISCONTINUED BY MANUFACTURER, LIGHT SOURCE TRANSMISSION, WARNING LAMP LED'S
    ✓ IN STOCK!
    Buy Surplus As Low As $600.00
    $600.00
    Repair Yours $500.00
    TITUS D21-TS

    TITUS

    D21-TS

    RELAY THERMISTOR, THERMOSTAT SIGNAL
    $697.00 Buy Surplus As Low As $419.00
    $419.00
    Repair Yours $348.00
    IMO MR-1PVM

    IMO

    MR-1PVM

    DISCONTINUED BY MANUFACTURER, RELAY, VOLTAGE MONITOR, SINGLE PHASE, MODULAR SUPPLY, 0-10 SECOND, 12-400 VAC INPUT, SCREW TERMINAL, DIN RAIL MOUNT
    ✓ IN STOCK!
    Buy Surplus As Low As $164.16
    $164.16
    Repair Yours $200.00
    WESTINGHOUSE 1272173A

    WESTINGHOUSE

    1272173A

    DISCONTINUED BY MANUFACTURER, IMPEDANCE RELAY, HCZ TYPE, 115VAC, 60HZ, 125VDC
    ✓ IN STOCK!
    Buy Surplus As Low As $648.00
    $648.00
    Repair Yours $537.84
    WESTINGHOUSE 289B447A14

    WESTINGHOUSE

    289B447A14

    RELAY, 2-6AMPS, 208VAC 60HZ
    ✓ IN STOCK!
    $4,202.93 Buy Surplus As Low As $2,521.76
    $2,521.76
    Repair Yours $2,093.06
    SCHWEITZER ENGINEERING SEL-311C-0311C01H232122X

    SCHWEITZER ENGINEERING

    SEL-311C-0311C01H232122X

    DISCONTINUED BY MANUFACTURER, TRANSMISSION PROTECTION SYSTEM, 1 AMP PHASE AND 1 AMP POLARIZING CURRENT INPUT, 25 W, 48-125 V POWER SUPPLY, 48 V LOGIC INPUT, 120 VAC, 50/60 HZ, ADDITIONAL 12 ...
    ✓ IN STOCK!
    Buy Surplus As Low As $6,000.00
    $6,000.00
    Repair Yours $2,500.00
    WESTINGHOUSE 1545336-A

    WESTINGHOUSE

    1545336-A

    DISCONTINUED BY MANUFACTURER, RELAY, 120 VAC, 125 VDC, 60 CYCLE
    ✓ IN STOCK!
    Buy Surplus As Low As $2,592.00
    $2,592.00
    Repair Yours $2,151.36
    GENERAL ELECTRIC 3ARR8E2

    GENERAL ELECTRIC

    3ARR8E2

    MAGNETIC RELAY, AC SWITCHING, 240 COIL VOLTS, 50/60 HZ, DPST
    ✓ IN STOCK!
    $6.43 Buy Surplus As Low As $4.89
    $4.89
    H HORSTMANN 22010-04-600-A/4H

    H HORSTMANN

    22010-04-600-A/4H

    DISCONTINUED BY MANUFACTURER, FAULT INDICATOR CRAB, 600 AMP
    ✓ IN STOCK!
    Buy Surplus As Low As $43.93
    $43.93
    GENERAL ELECTRIC NGV19A2A

    GENERAL ELECTRIC

    NGV19A2A

    UNDER VOLTAGE RELAY, 125VDC, 208VAC 50/60HZ, 100-140VDC DROPOUT
    ✓ IN STOCK!
    $1,838.27 Buy Surplus As Low As $1,102.96
    $1,102.96
    Repair Yours $915.46
    YOKOGAWA YE/50-152111FASJ

    YOKOGAWA

    YE/50-152111FASJ

    DISCONTINUED BY MANUFACTURER, VOLTAGE GAUGE, 0-600 VDC, 3-1/3 INCH DIAL
    ✓ IN STOCK!
    Buy Surplus As Low As $196.99
    $196.99
    WESTINGHOUSE 1875269A

    WESTINGHOUSE

    1875269A

    UNDER VOLTAGE RELAY, 0.5-2.5A, 60HZ, 4-16AMP TRIP, TYPE C0-8
    ✓ IN STOCK!
    $325.44 Buy Surplus As Low As $195.26
    $195.26
    RHEINTACHO 5333.001

    RHEINTACHO

    5333.001

    SPEED MONITOR RELAY
    ✓ IN STOCK!
    $451.00 Buy Surplus As Low As $226.00
    $226.00
    Repair Yours $214.00
    SCHWEITZER ENGINEERING SEL-287V-287V02-45X6XHGB

    SCHWEITZER ENGINEERING

    SEL-287V-287V02-45X6XHGB

    RELAY, DIFFERENTIAL LEVEL, VOLTAGE CONTROLLER, FOR GROUNDED SHUNT CAPACITOR BANK PROTECTION
    ✓ IN STOCK!
    $2,135.52 Buy Surplus As Low As $1,281.31
    $1,281.31
    Repair Yours $1,063.49
    SCHWEITZER ENGINEERING SEL-279-279000-47X6XHGX

    SCHWEITZER ENGINEERING

    SEL-279-279000-47X6XHGX

    RELAY, RECLOSING / VOLTAGE / SYNCHRONISM CHECK, SPECIAL SPEC-35, POWER SUPPLY / 15 W MAX / 85-264 VAC / 58-350 VDC / 50/60 HZ, LOGIC INPUT / 0-270 VAC / 125 VDC
    ✓ IN STOCK!
    $928.42 Buy Surplus As Low As $705.60
    $705.60
    Repair Yours $462.35
    RADWELL VERIFIED SUBSTITUTE SLA-230-ASA-SUB

    RADWELL VERIFIED SUBSTITUTE

    SLA-230-ASA-SUB

    SUBSTITUTE FOR ATC DIVERSIFIED SLA-230-ASA, PHASE MONITOR RELAY, 3-PHASE , PHASE LOSS, PHASE REVERSAL, UNDERVOLTAGE, 240VAC, 10A, SPDT
    ✓ IN STOCK!
    $92.00 Buy New $92.00
    RADWELL RAD-PM-004

    RADWELL

    RAD-PM-004

    PHASE MONITOR RELAY, 3-PHASE , PHASE LOSS, PHASE REVERSAL, UNDERVOLTAGE, 480VAC, 10A, SPDT
    ✓ IN STOCK!
    $131.00 Buy New $131.00
    $63.00
    RADWELL VERIFIED SUBSTITUTE 252B-SUB

    RADWELL VERIFIED SUBSTITUTE

    252B-SUB

    SUBSTITUTE FOR TIME MARK CORP 252B, PHASE MONITOR RELAY, 3-PHASE , PHASE LOSS, PHASE REVERSAL, UNDERVOLTAGE, 240VAC, 10A, SPDT
    ✓ IN STOCK!
    $94.00 Buy New $94.00
    RADWELL VERIFIED SUBSTITUTE A252B-SUB

    RADWELL VERIFIED SUBSTITUTE

    A252B-SUB

    SUBSTITUTE FOR TIME MARK CORP A252B, PHASE MONITOR RELAY, 3-PHASE , PHASE LOSS, PHASE REVERSAL, UNDERVOLTAGE, 480VAC, 10A, SPDT
    ✓ IN STOCK!
    $97.00 Buy New $97.00
    RADWELL VERIFIED SUBSTITUTE PLM6805-SUB

    RADWELL VERIFIED SUBSTITUTE

    PLM6805-SUB

    SUBSTITUTE FOR ASEA BROWN BOVERI SYMCOM PLM6805, PHASE MONITOR RELAY, 3-PHASE , PHASE LOSS, PHASE REVERSAL, UNDERVOLTAGE, 240VAC, 10A, SPDT
    ✓ IN STOCK!
    $114.00 Buy New $114.00
    RADWELL VERIFIED SUBSTITUTE PLM9502-SUB

    RADWELL VERIFIED SUBSTITUTE

    PLM9502-SUB

    SUBSTITUTE FOR ASEA BROWN BOVERI SSAC PLM9502, PHASE MONITOR RELAY, 3-PHASE , PHASE LOSS, PHASE REVERSAL, UNDERVOLTAGE, 480VAC, 10A, SPDT
    ✓ IN STOCK!
    $119.00 Buy New $119.00
    RADWELL VERIFIED SUBSTITUTE SLA-440-ASA-SUB

    RADWELL VERIFIED SUBSTITUTE

    SLA-440-ASA-SUB

    SUBSTITUTE FOR DIVERSIFIED ELECTRONICS SLA-440-ASA, PHASE MONITOR RELAY, 3-PHASE , PHASE LOSS, PHASE REVERSAL, UNDERVOLTAGE, 480VAC, 10A, SPDT
    ✓ IN STOCK!
    $97.00 Buy New $97.00
    EATON CORPORATION 13535H111-2

    EATON CORPORATION

    CUTLER HAMMER

    13535H111-2

    AC TRANSFORMER RELAY, OPEN TYPE, 20/240 VAC, 50/60 HZ
    ✓ IN STOCK!
    $488.88 Buy Surplus As Low As $293.33
    $293.33
    SIEMENS 3UG5461-1AA40

    SIEMENS

    3UG5461-1AA40

    DC LOAD MONITORING RELAY FOR PROFINET, MAX. 2X8 A / 1X16 A DC, MAX. 800 V WIDTH: 22.5 MM MONITORING FOR VIOLATION OF UPPER AND LOWER LIMIT OF CURRENT, VOLTAGE AND POWER; ENERGY CONSUMPTION C ...
    ✓ IN STOCK!
    $1,148.00 Buy Surplus As Low As $688.80
    $688.80
    Repair Yours $571.70
    CONVERTEAM MVTU11K1CD0501G

    CONVERTEAM

    ALSTOM

    MVTU11K1CD0501G

    DISCONTINUED BY MANUFACTURER, VOLTAGE RELAY, UNDERVOLTAGE, DEFINITE TIME DELAY, 100-120 VAC RATED, 50/60 HZ RATED, 30-70 HZ OPERATING RANGE, 252 CONTINUOUS
    ✓ IN STOCK!
    Buy Surplus As Low As $604.80
    $604.80
    Repair Yours $501.98
    GENERAL ELECTRIC 12HGA14AX1A

    GENERAL ELECTRIC

    12HGA14AX1A

    DISCONTINUED BY MANUFACTURER, AUXILIARY RELAY, 125 VDC
    ✓ IN STOCK!
    Buy Surplus As Low As $246.00
    $246.00
    Repair Yours $210.00
    ELKO PRI-51/5A

    ELKO

    PRI-51/5A

    CURRENT MONITORING RELAY, 0.5-5 AMP, 24-240 VAC, 24 VDC, 50/60 HZ, 25 VA, 1.6 WATT, DIN RAIL MOUNT, IP40
    ✓ IN STOCK!
    $69.00 Buy Surplus As Low As $42.00
    $42.00
    WESTINGHOUSE 293B285A11

    WESTINGHOUSE

    293B285A11

    DISCONTINUED BY MANUFACTURER, RELAY, SYNCHRO-VERIFIED, TYPE CVE, 120 V, 60 HZ
    ✓ IN STOCK!
    Buy Surplus As Low As $984.96
    $984.96
    Repair Yours $645.41
    ASEA BROWN BOVERI 289B423A11

    ASEA BROWN BOVERI

    289B423A11

    DISCONTINUED BY MANUFACTURER, RELAY, DIRECTIONAL OVERCURRENT, CR-2 TYPE, 4-12 AMP-OVERCURRENT UNIT / 0.2-2 AMP-INDICATOR, 120 V
    ✓ IN STOCK!
    Buy Surplus As Low As $2,571.84
    $2,571.84
    Repair Yours $1,685.23
    ASEA BROWN BOVERI 443T2341

    ASEA BROWN BOVERI

    443T2341

    DISCONTINUED BY MANUFACTURER, RELAY, TIME OVERCURRENT, CIRCUIT SHEILD, 51Y TYPE, 125 VDC, 4-12 AMP TOC, 2-20 AMP IOC
    ✓ IN STOCK!
    Buy Surplus As Low As $2,894.40
    $2,894.40
    Repair Yours $2,402.35
    CR MAGNETICS CR4395-EH-24D-0.04-X-T-FP

    CR MAGNETICS

    CR4395-EH-24D-0.04-X-T-FP

    DISCONTINUED BY MANUFACTURER, CURRENT SENSING RELAY, SUPPLY: 24+/-10%VDC, TRIP POINT: 0.04AMPS, LOAD: NPN SINKING, 100MA MAX
    ✓ IN STOCK!
    Buy Surplus As Low As $133.06
    $133.06
    CR MAGNETICS CR4395-EH-24D-.04-X-FP-T PNP

    CR MAGNETICS

    CR4395-EH-24D-.04-X-FP-T PNP

    DISCONTINUED BY MANUFACTURER, SUPPLY: 24+/-10%VDC, TRIP POINT: 0.04AMPS, ENERGIZE: HI CURRENT (EH), LOAD: PNP - SOURCING, 100MA MAX
    ✓ IN STOCK!
    Buy Surplus As Low As $114.24
    $114.24
    MACROMATIC PBDU

    MACROMATIC

    PBDU

    PHASE MONITOR RELAY, SPDT, 5A, 250VAC; PRODUCT RANGE:-; CONTACT CONFIGURATION:SPDT; CONTACT CURRENT:5A; RELAY MOUNTING:DIN RAIL; RELAY TERMINALS:SCREW; SWITCHING VOLTAGE MAX:250VAC; SUPPLY V ...
    ✓ IN STOCK!
    $169.00 Buy New $169.00
    $102.00
    Repair Yours Contact Us
    DEIF RMV-112D-DELTA-440VAC-ND+ND-440VAC

    DEIF

    RMV-112D-DELTA-440VAC-ND+ND-440VAC

    PROTECTIVE VOLTAGE RELAY, RMV-112D, 440VAC, NORM. DEENERGIZED, UNDERVOLTAGE 80 TO 100%, OVERVOLTAGE 100 TO 120%, 0 TO 10S
    ✓ IN STOCK!
    $673.67 Buy Surplus As Low As $404.20
    $404.20
    Repair Yours $335.49
    DEIF RMV-112D-DELTA-415VAC-ND+ND-24VDC

    DEIF

    RMV-112D-DELTA-415VAC-ND+ND-24VDC

    PROTECTIVE VOLTAGE RELAY, RMV-112D, COUPLING: DELTA, MEASURING VOLTAGE: 415/240V, MODULE: 415V, SUPPLY: 24VDC, RELAY B: NORM. DEENERGIZED, RELAY C: NORM. DEENERGIZED, UNDERVOLTAGE: 80-100%, ...
    ✓ IN STOCK!
    $721.36 Buy Surplus As Low As $432.82
    $432.82
    Repair Yours $359.24
    DEIF RMV-112D-STAR-240VAC-NE+NE-24VDC

    DEIF

    RMV-112D-STAR-240VAC-NE+NE-24VDC

    PROTECTIVE VOLTAGE RELAY, RMV-112D, COUPLING: STAR, MEASURING VOLTAGE: 415/240VAC, MODULE: 240V, SUPPLY: 24VDC, RELAY B: NORM. ENERGIZED, RELAY C: NORM. ENERGIZED, UNDERVOLTAGE: 80-100%, OVE ...
    ✓ IN STOCK!
    $852.57 Buy Surplus As Low As $512.08
    $512.08
    Repair Yours $426.29
    DEIF RMV-112D-DELTA-415VAC-NDL+NDL-24VDC

    DEIF

    RMV-112D-DELTA-415VAC-NDL+NDL-24VDC

    VOLTAGE RELAY, UNI-LINE, TYPE RMV-112D, COUPLING: DELTA, MEASURING VOLTAGE: 240/415VAC, MODULE: 415V, SUPPLY: 24VDC, RELAY B: NORM. DEENERGIZED W/LATCH, RELAY C: NORM. DEENERGIZED W/LATCH
    ✓ IN STOCK!
    $584.62 Buy Surplus As Low As $444.31
    $444.31
    Repair Yours $291.14
    V INFINITY PTK25-D48-S12-T

    V INFINITY

    PTK25-D48-S12-T

    DISCONTINUED BY MANUFACTURER, VOLTAGE CONVERTER, DC-DC, AC-DC, SCREW CLAMP TERMINALS, 48 V INPUT @ 0.85 AMP, 12 V OUTPUT @ 2 AMP
    ✓ IN STOCK!
    Buy Surplus As Low As $56.85
    $56.85
    DEIF RMF-112D-110VAC-60HZ-ND-ND-110VDC

    DEIF

    RMF-112D-110VAC-60HZ-ND-ND-110VDC

    DISCONTINUED BY MANUFACTURER, FREQUENCY RELAY, UNI-LINE, TYPE: RMF-112D, MEAS VOLTAGE: 110V, MODULE: 110V, 60HZ, SUPPLY: 110VDC, RELAY B: NORM. DEENERGIZED, RELAY C: NORM. DEENERGIZED, UNDER ...
    ✓ IN STOCK!
    Buy Surplus As Low As $233.28
    $233.28
    Repair Yours $200.00
    DEIF TAS-331DG 2W3 -200-0-1500KW/440V(L-L) 3000A/5A -333-0-2500W 4-20MA -24-24MA 500OHM 24VDC

    DEIF

    TAS-331DG 2W3 -200-0-1500KW/440V(L-L) 3000A/5A -333-0-2500W 4-20MA -24-24MA 500OHM 24VDC

    DISCONTINUED BY MANUFACTURER, SELECTABLE AC-TRANSDUCER, TYPE: TAS-331DG, ORDER NO: 100018271.10, COUPLING: 2W3, RANGE: -200-0-1500KW, RATIO VT: 440V(L-L), RATIO CT: 3000A/5A, INPUT: -333-0-2 ...
    ✓ IN STOCK!
    Buy Surplus As Low As $210.60
    $210.60
    Repair Yours $200.00
    DEIF RMP121D

    DEIF

    RMP121D

    DISCONTINUED BY MANUFACTURER, REVERSE POWER RELAY, TYPE: RMP-121D, MEAS VOLTAGE: 110 VAC, MEAS POWER: 537W, SUPPLY: 110 VAC, COUPLING: 1W3, MODULE: 63.3V, MODULE: 3A, SCALE: 0.94, INVERSE TI ...
    ✓ IN STOCK!
    Buy Surplus As Low As $172.80
    $172.80
    Repair Yours $200.00
    TELE CONTROLS E1IM10AACL10 230V AC

    TELE CONTROLS

    E1IM10AACL10 230V AC

    CURRENT MONITORING RELAY, 1-PH, 10A AC, MULTIFUNCTION, 1 CO, SPDT, LED INDICATORS, 230V AC SUPPLY VOLTAGE
    ✓ IN STOCK!
    $242.00 Buy New $242.00
    $184.00
    Repair Yours Contact Us
    TELE CONTROLS G2TF02 24-240VAC/DC

    TELE CONTROLS

    G2TF02 24-240VAC/DC

    PTC MOTOR MONITORING RELAY, TEMPERATURE MONITORING, LED INDICATORS, 2 CO, DPDT RELAY OUTPUT, 24-240V AC/DC SUPPLY
    ✓ IN STOCK!
    $305.00 Buy New $305.00
    $183.00
    Repair Yours $200.00
    TELE CONTROLS V2PF480Y/277VSY01

    TELE CONTROLS

    V2PF480Y/277VSY01

    PHASE LOSS MONITOR, PHASE BALANCE, PHASE ROTATION, PHASE SEQUENCE 3-PH, 208-380V AC, 1 CO, SPDT RELAY OUTPUT, LED INDICATORS, ADJUSTABLE PHASE BALANCE
    ✓ IN STOCK!
    $170.00 Buy New $170.00
    $113.00
    Repair Yours Contact Us
    SCHWEITZER ENGINEERING SEL-251D-251D00-4356UHGB

    SCHWEITZER ENGINEERING

    SEL-251D-251D00-4356UHGB

    DISCONTINUED BY MANUFACTURER, DISTRIBUTION RELAY, SEL-251D, PHASE OVERCURRENT RELAY W/ VOLTAGE CONTROL, GROUND OVERCURRENT, FAULT LOCATOR, SELOGIC CONTROL INPUT / 125 VD, POWER SUPPLY / 15 W ...
    ✓ IN STOCK!
    Buy Surplus As Low As $1,060.80 $780.00
    $1,060.80 $780.00
    Repair Yours $880.46
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