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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 701-750 of 821.
    WESTINGHOUSE 774B470A12

    WESTINGHOUSE

    774B470A12

    DISCONTINUED BY MANUFACTURER, RELAY AUXILIARY 125VDC
    ✓ IN STOCK!
    Buy Surplus As Low As $442.58
    $442.58
    Repair Yours $367.34
    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 $2,149.29
    $2,149.29
    Repair Yours $1,783.91
    SIEMENS 5TT3401

    SIEMENS

    5TT3401

    VOLTAGE RELAY T5570 AC 230/400V 1CO 0.85/0.95 WITH TRANSPARENT CAP
    ✓ IN STOCK!
    $106.00 Buy Surplus As Low As $81.00
    $81.00
    Repair Yours $300.00
    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 $300.00
    GENERAL ELECTRIC 12NGV13B25A

    GENERAL ELECTRIC

    12NGV13B25A

    RELAY UNDERVOLTAGE .2AMP 120VAC
    ✓ IN STOCK!
    $1,484.00 Buy Surplus As Low As $724.51
    $724.51
    Repair Yours $601.34
    MARSH BELLOFRAM SLA-460-AFE

    MARSH BELLOFRAM

    ATC DIVERSIFIED ELECTRONICS

    SLA-460-AFE

    PHASE MONITOR/RELAY, 460VAC , 3 PHASE
    ✓ IN STOCK!
    $806.00 Buy New $806.00
    $306.37
    Repair Yours $303.32
    MARSH BELLOFRAM SLA-440-ASA

    MARSH BELLOFRAM

    ATC DIVERSIFIED ELECTRONICS

    SLA-440-ASA

    PHASE SEQUENCE AND LOSS MONITOR, RELAY, E-MECH, SPDT, CUR-RTG 10 AMP, CTRL-V 430-480 VAC, VOL-RTG 240 VAC, 8 PIN
    ✓ IN STOCK!
    $253.54 Buy New $253.54
    $152.12
    Repair Yours $300.00
    MARSH BELLOFRAM SLA-440-ALER

    MARSH BELLOFRAM

    ATC DIVERSIFIED ELECTRONICS

    SLA-440-ALER

    PHASE MONITORING RELAY, 430-480 V, SPDT, 3A/600VAC, SCREW TERMINAL, SLA SERIES
    ✓ IN STOCK!
    $721.86 Buy New $721.86
    $422.65
    Repair Yours $318.00
    MARSH BELLOFRAM SLA-230-ALE

    MARSH BELLOFRAM

    ATC DIVERSIFIED ELECTRONICS

    SLA-230-ALE

    RELAY, SLA SERIES, PHASE MONITORING, 190-270 VAC, 5A @ 240 V, 9-PIN, SCREW TERMINAL
    ✓ IN STOCK!
    $393.85 Buy New $393.85
    $236.31
    Repair Yours $300.00
    MARSH BELLOFRAM CBA-120-ALE-10

    MARSH BELLOFRAM

    ATC DIVERSIFIED ELECTRONICS

    CBA-120-ALE-10

    MONITOR / RELAY, AC OVER AND UNDER CURRENT BAND, 2 - 10 AMP ADJUSTABLE UNDER CURRENT RANGE, 2-10 AMP ADJUSTABLE OVER CURRENT RANGE, 120 VAC, 50/60 HZ
    ✓ IN STOCK!
    $566.00 Buy New $566.00
    $324.00
    Repair Yours $300.00
    MARSH BELLOFRAM CMU-120-ASE-20

    MARSH BELLOFRAM

    ATC DIVERSIFIED ELECTRONICS

    CMU-120-ASE-20

    OVERCURRENT MONITOR RELAY, AC, W/ MANUAL RESET, CMU MODEL, OUTPUT - 10 AMPS @ 120 V AC - RESISTIVE, DPDT, CONTROL VOLTAGE - 120 V AC/DC, 50/60 HZ, SURFACE MOUNT ENCLOSURE, CURRENT TRIP POINT ...
    ✓ IN STOCK!
    $566.03 Buy New $566.03
    $234.35
    Repair Yours $300.00
    MARSH BELLOFRAM CMO-120-ASE-20

    MARSH BELLOFRAM

    ATC DIVERSIFIED ELECTRONICS

    CMO-120-ASE-20

    OVERCURRENT MONITOR RELAY, AC, W/ MANUAL RESET, CMO MODEL, OUTPUT - 10 AMPS @ 120 V AC - RESISTIVE, DPDT, CONTROL VOLTAGE - 120 V AC/DC, 50/60 HZ, SURFACE MOUNT ENCLOSURE, CURRENT TRIP POINT ...
    ✓ IN STOCK!
    $579.94 Buy New $579.94
    $348.82
    Repair Yours $300.00
    MARSH BELLOFRAM CMI-120-ASE-5

    MARSH BELLOFRAM

    ATC DIVERSIFIED ELECTRONICS

    CMI-120-ASE-5

    OVERCURRENT MONITOR RELAY, AC, W/ MANUAL RESET, CMI MODEL, OUTPUT - 10 AMPS @ 120 V AC - RESISTIVE, DPDT, CONTROL VOLTAGE - 120 V AC, 50/60 HZ, CURRENT TRIP POINTS - 1-5 AMP
    ✓ IN STOCK!
    $564.20 Buy New $564.20
    $266.72
    Repair Yours $300.00
    MARSH BELLOFRAM CMG-0100-28

    MARSH BELLOFRAM

    ATC DIVERSIFIED ELECTRONICS

    CMG-0100-28

    CURRENT MONITORING RELAY, CMG SERIES, 240 V AC, SPST - N.O., 5 AMP, QC TABS, PANEL MOUNT, CURRENT TRIP POINT - 28 AMPS
    ✓ IN STOCK!
    $223.00 Buy New $223.00
    $136.87
    Repair Yours $300.00
    MARSH BELLOFRAM CMD-120-ASE-20

    MARSH BELLOFRAM

    ATC DIVERSIFIED ELECTRONICS

    CMD-120-ASE-20

    CURRENT MONITOR RELAYS, UNIVERSAL, AC, CMD MODEL, 120 V AC, 50/60 HZ, CURRENT TRIP POINTS - 4-20 AMP ADJ. / MAX - 20 AMP, DPDT, AUTOMATIC RESET
    ✓ IN STOCK!
    $548.68 Buy New $548.68
    $211.93
    Repair Yours $300.00
    MARSH BELLOFRAM AC-2020

    MARSH BELLOFRAM

    ATC DIVERSIFIED ELECTRONICS

    AC-2020

    COMPRESSOR PROTECTOR, 3 PHASE MONITOR
    ✓ IN STOCK!
    $432.18 Buy New $432.18
    $384.00
    Repair Yours $300.00
    TELE CONTROLS G2UM300VL20

    TELE CONTROLS

    G2UM300VL20

    VOLTAGE PROTECTION MONITORING RELAY, 1-PH, 30V - 60V - 300V AC/DC RANGES, MULTIFUNCTION, 2 CO, DPDT RELAY OUTPUT, LED INDICATORS, ADJUSTABLE THRESHOLDS, POWER SUPPLY PROTECTOR, IDEAL FOR BAT ...
    ✓ IN STOCK!
    $338.00 Buy New $338.00
    $203.00
    Repair Yours $300.00
    BENDER RCM465Y-13

    BENDER

    RCM465Y-13

    DISCONTINUED BY MANUFACTURER,GROUND FAULT RELAY, 30-300MA ,RESPONSE 0-1S, 90-132V
    ✓ IN STOCK!
    Buy Surplus As Low As $536.79
    $536.79
    Repair Yours $424.00
    FW MURPHY UVR505

    FW MURPHY

    UVR505

    DISCONTINUED BY MANUFACTURER, RELAY UNDER VOLTAGE, FRONT STATUS LEDS, 12 PORTS
    ✓ IN STOCK!
    Buy Surplus As Low As $311.00
    $311.00
    Repair Yours $300.00
    SCHNEIDER ELECTRIC RM4TR32

    SCHNEIDER ELECTRIC

    TELEMECANIQUE

    RM4TR32

    DISCONTINUED BY MANUFACTURER, PHASE FAILURE RELAY, 300V, 5A, RM4,50/60HZ, REPLACED BY RM22TR33
    ✓ IN STOCK!
    Buy Surplus As Low As $358.18
    $358.18
    SCHNEIDER ELECTRIC GC-200D

    SCHNEIDER ELECTRIC

    SQUARE D

    GC-200D

    DISCONTINUED BY MANUFACTURER, GROUND FAULT RELAY, 120 VAC, 24 VDC, DIN RAIL MOUNT, 5A/10A TRIP ALARM
    ✓ IN STOCK!
    Buy Surplus As Low As $1,505.11
    $1,505.11
    Repair Yours $1,249.24
    SCHNEIDER ELECTRIC 56327

    SCHNEIDER ELECTRIC

    SQUARE D

    56327

    CURRENT PROTECTION RELAY, VIGIREX RH10M, 1 AMP, 120 VAC, DIN RIAL MOUNT
    ✓ IN STOCK!
    $2,996.00 Buy Surplus As Low As $1,449.95
    $1,449.95
    Repair Yours $811.67
    BENDER B91067010

    BENDER

    B91067010

    INSULATION MONITORING DEVICE, INTEGRATED DISPLAY, NOMINAL SYSTEM VOLTAGE RANGE: 0-690 VAC (1-460 HZ) / 0-1000 VDC, SUPPLY: 24-240 VAC (50-400 HZ) / 24-240 VDC, (ISO685-D)
    ✓ IN STOCK!
    $5,313.00 Buy Surplus As Low As $2,927.00
    $2,927.00
    Repair Yours $2,430.00
    BOLTSWITCH INC GFR-1

    BOLTSWITCH INC

    GFR-1

    GROUND FAULT RELAY, 100-1200AMP, 120VAC
    ✓ IN STOCK!
    $1,279.26 Buy Surplus As Low As $742.35
    $742.35
    Repair Yours $592.00
    ASEA BROWN BOVERI 202T3004-UL

    ASEA BROWN BOVERI

    202T3004-UL

    DISCONTINUED BY MANUFACTURER, MONITOR, GROUND FAULT, 24/32VDC
    ✓ IN STOCK!
    Buy Surplus As Low As $145.82
    $145.82
    Repair Yours $300.00
    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 $1,781.13
    $1,781.13
    Repair Yours $1,182.67
    WESTINGHOUSE 293B285A11

    WESTINGHOUSE

    293B285A11

    DISCONTINUED BY MANUFACTURER, RELAY, SYNCHRO-VERIFIED, TYPE CVE, 120 V, 60 HZ
    ✓ IN STOCK!
    Buy Surplus As Low As $718.03
    $718.03
    Repair Yours $482.73
    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!
    $83.72 Buy Surplus As Low As $50.23
    $50.23
    GENERAL ELECTRIC 12HGA14AX1A

    GENERAL ELECTRIC

    12HGA14AX1A

    DISCONTINUED BY MANUFACTURER, AUXILIARY RELAY, 125 VDC
    ✓ IN STOCK!
    Buy Surplus As Low As $161.40
    $161.40
    Repair Yours $300.00
    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 $182.84
    $182.84
    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
    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 $27.39
    $27.39
    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 $3.56
    $3.56
    WESTINGHOUSE 1545336-A

    WESTINGHOUSE

    1545336-A

    DISCONTINUED BY MANUFACTURER, RELAY, 120 VAC, 125 VDC, 60 CYCLE
    ✓ IN STOCK!
    Buy Surplus As Low As $1,700.61
    $1,700.61
    Repair Yours $1,411.51
    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
    REGAL REXNORD 2 1/2F SB SLEEVE

    REGAL REXNORD

    KOP FLEX

    2 1/2F SB SLEEVE

    COMPLETE GEAR COUPLING, SIZE 2-1/2 INCH SOLID, SHROUDED BOLT, FULL FLEX, 8-3/8 INCH OUTER DIAMETER, 6-3/16 INCH LENGTH , 2 1/2F SB SLEEVE
    ✓ IN STOCK!
    $1,695.00 Buy Surplus As Low As $854.99
    $854.99
    Repair Yours $602.00
    GENERAL ELECTRIC IC2820-D300B10

    GENERAL ELECTRIC

    IC2820-D300B10

    DISCONTINUED BY MANUFACTURER, FIELD LOSS RELAY, 600 VAC MAX, 10 AMP
    ✓ IN STOCK!
    Buy Surplus As Low As $280.91
    $280.91
    Repair Yours $300.00
    LITTELFUSE 355400

    LITTELFUSE

    355400

    3-PHASE VOLT MON/ 380-480V/ AD/ BOX
    ✓ IN STOCK!
    $410.00 Buy Surplus As Low As $271.00
    $271.00
    Repair Yours $300.00
    LITTELFUSE 201A-AU-OT

    LITTELFUSE

    201A-AU-OT

    3-PH PLUG-IN VM/190-480V/ADJ./ BOX
    ✓ IN STOCK!
    $179.00 Buy Surplus As Low As $119.00
    $119.00
    Repair Yours $300.00
    GIC MG53BI

    GIC

    MG53BI

    VOLTAGE MONITORING RELAY, SM 501 SERIES, 2 C/O, 3 W, 3 PHASE, 415 V, 65 V ASYMMETRY, 50/60 HZ, 5 SECOND RELEASE / OPERATE TIME, OV / SINGLE PHASING PREVENTOR / SPP
    ✓ IN STOCK!
    $41.00 Buy Surplus As Low As $18.23
    $18.23
    Repair Yours $300.00
    SCHWEITZER ENGINEERING SEL-710-071001A0X0X0X850001

    SCHWEITZER ENGINEERING

    SEL-710-071001A0X0X0X850001

    MOTOR PROTECTION RELAY, SEL-710 SERIES, PROGRAMMABLE, 32 CUSTOM DISPLAY LABELS, 2 16 CHARACTER LCD, PROTECTION FOR OVERCURRENT / THERMAL OVERLOAD / UNDERCURRENT CURRENT UNBALANCE / CURRENT D ...
    ✓ IN STOCK!
    $6,013.70 Buy Surplus As Low As $2,791.34
    $2,791.34
    Repair Yours $2,316.81
    ITI SPVRB240

    ITI

    SPVRB240

    VOLTAGE SENSING RELAY, PHASE VOLTAGE RELAY, TRIP DELAY: 1-10 SEC, 240 VAC +/- 10%, 3 PHASE, 60 HZ, BI-COLORED LED STATUS INDICATOR, AUTOMATIC OR MANUAL MODE
    ✓ IN STOCK!
    $1,774.03 Buy Surplus As Low As $958.50
    $958.50
    Repair Yours $804.00
    BENDER B91067120

    BENDER

    B91067120

    ISOMETER, ISO685-S-B, AC 0-690V; 1-460HZ / DC 0-1000V NOMINAL SYSTEM VOLTAGE, C 24-240 V; 50-400 HZ /DC 24-240V SUPPLY VOLTAGE
    ✓ IN STOCK!
    $4,856.00 Buy Surplus As Low As $2,400.08
    $2,400.08
    Repair Yours $1,982.69
    MEGACON KCG598E 380-415V/220-240V/150-300V/3R/6O

    MEGACON

    KCG598E 380-415V/220-240V/150-300V/3R/6O

    LOSS OF MAINS PROTECTION RELAY, THREE PHASE, 4-WIRE, AUXILIARY VOLTAGE: 380-415 VAC (50/60 HZ), INPUT 1: 220-240 V, RANGE: 150-300 V, OUTPUT 1: 3 RELAY, OUTPUT 2: 6 OPTO, IP21
    ✓ IN STOCK!
    $1,621.00 Buy Surplus As Low As $1,232.00
    $1,232.00
    Repair Yours $808.00
    EATON CORPORATION D64RPB6

    EATON CORPORATION

    CUTLER HAMMER

    D64RPB6

    RELAY, GROUND FAULT, 10MA-6.4 AMP RANGE, 24-250 AC/DC
    ✓ IN STOCK!
    $33.16 Buy Surplus As Low As $6.91
    $6.91
    MINILEC VSP-1

    MINILEC

    VSP-1

    DISCONTINUED BY MANUFACTURER, PREVENTER, SINGLE PHASE, 415 V
    ✓ IN STOCK!
    Buy Surplus As Low As $164.85
    $164.85
    Repair Yours $300.00
    WESTINGHOUSE 1256C13H01

    WESTINGHOUSE

    1256C13H01

    DISCONTINUED BY MANUFACTURER, CURRENT MONITOR, 5-1/2 INCH ID
    ✓ IN STOCK!
    Buy Surplus As Low As $63.83
    $63.83
    Repair Yours $300.00
    SCHWEITZER ENGINEERING SEL-TPR-3TPR31000IRJ6

    SCHWEITZER ENGINEERING

    SEL-TPR-3TPR31000IRJ6

    DISCONTINUED BY MANUFACTURER, UNDERGROUND TEST POINT RESET FAULT INDICATOR, DIRECT REPLACEMENT SEL-TPR-TPR#8BMJ
    ✓ IN STOCK!
    Buy Surplus As Low As $107.12
    $107.12
    Repair Yours Contact Us
    NORTHERN DESIGN ELECTRONICS KWH CUBE

    NORTHERN DESIGN ELECTRONICS

    KWH CUBE

    ACTIVE ENERGY MONITOR, PANEL MOUNTED, 3 PHASE, 3/4 WIRE, 230V AC, 45-65 HZ, 5W, 1 PULSE OUTPUT, 8-DIGIT LCD WITH LED BACKLIGHT,
    ✓ IN STOCK!
    $313.00 Buy Surplus As Low As $207.00
    $207.00
    Repair Yours $300.00
    INGERSOLL RAND RLY01869

    INGERSOLL RAND

    TRANE

    RLY01869

    DISCONTINUED BY MANUFACTURER, RELAY, START, SPST, 50 AMP COIL, 239 V PICK UP, 135 V DROP OUT, SUGGESTED REPLACEMENT RLY3210
    ✓ IN STOCK!
    Buy Surplus As Low As $24.15
    $24.15
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