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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 827.
    GENERAL ELECTRIC IC2820-D300B3

    GENERAL ELECTRIC

    IC2820-D300B3

    DISCONTINUED BY MANUFACTURER, FIELD LOSS RELAY, 600 VAC MAX, 10 AMP
    ✓ IN STOCK!
    Buy Surplus As Low As $226.76
    $226.76
    Repair Yours $300.00
    ASEA BROWN BOVERI 587C0427-61114

    ASEA BROWN BOVERI

    587C0427-61114

    DISCONTINUED BY MANUFACTURER, RELAY / DISTRIBUTION PROTECTION SYSTEM, INDUSTRIAL CONTROL EQUIPMENT, TYPE / DPU 2000R, PHASE / 0.4-12 AMP, GROUND / 0.4-12 AMP, 38-58 VDC, 60 HZ, 1-12 AMP, 70- ...
    ✓ IN STOCK!
    Buy Surplus As Low As $409.41
    $409.41
    Repair Yours $377.57
    EATON CORPORATION C323PN12C6

    EATON CORPORATION

    CUTLER HAMMER

    C323PN12C6

    DISCONTINUED BY MANUFACTURER, RELAY / PHASE MONITOR, 440 V
    ✓ IN STOCK!
    Buy Surplus As Low As $641.01
    $641.01
    Repair Yours $450.10
    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
    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
    WESTINGHOUSE 1344D82A22C

    WESTINGHOUSE

    1344D82A22C

    DISCONTINUED BY MANUFACTURER, FREQUENCY RELAY, TYPE MDF-2, 110/120 VAC, 50/60 HZ, 125 VDC,
    ✓ IN STOCK!
    Buy Surplus As Low As $1,476.23
    $1,476.23
    Repair Yours $1,225.27
    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
    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
    ASEA BROWN BOVERI 5653138-E

    ASEA BROWN BOVERI

    5653138-E

    DISCONTINUED BY MANUFACTURER, RECTIFIER UNIT RELAY, COMBIFLEX, 19-29/20-30 VAC, 50/60 HZ, SILICONE RECTIFIER BRIDGES, FOR RADHA DIFFERENTIAL RELAY, (RXTLA 1)
    ✓ IN STOCK!
    Buy Surplus As Low As $111.97
    $111.97
    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
    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
    LITTELFUSE 201A-AU-OT

    LITTELFUSE

    201A-AU-OT

    3-PH PLUG-IN VM/190-480V/ADJ./ BOX
    ✓ IN STOCK!
    $218.74 Buy Surplus As Low As $131.24
    $131.24
    Repair Yours $300.00
    LITTELFUSE 355400

    LITTELFUSE

    355400

    3-PHASE VOLT MON/ 380-480V/ AD/ BOX
    ✓ IN STOCK!
    $506.54 Buy Surplus As Low As $334.32
    $334.32
    Repair Yours $300.00
    MARSH BELLOFRAM CMU-24-DSA-1

    MARSH BELLOFRAM

    ATC DIVERSIFIED ELECTRONICS

    CMU-24-DSA-1

    OVERCURRENT MONITOR RELAY, AC, W/ MANUAL RESET, CMU MODEL, OUTPUT - 10 AMPS @ 120 V AC - RESISTIVE, DPDT, CONTROL VOLTAGE - 24 V AC/DC, 50/60 HZ, PLUG-IN ENCLOSURE, CURRENT TRIP POINTS - 0.2 ...
    ✓ IN STOCK!
    $429.00 Buy New $429.00
    $327.00
    Repair Yours $300.00
    MARSH BELLOFRAM CMB-120-AFA-1

    MARSH BELLOFRAM

    ATC DIVERSIFIED ELECTRONICS

    CMB-120-AFA-1

    CURRENT MONITORING RELAY, CMB SERIES, AC GO/NO-GO, 120 V AC, 50/60 HZ, 1 AMPS, SINGLE POLE DOUBLE THROW, 8-PIN OCTAL TERMINATION
    ✓ IN STOCK!
    $196.00 Buy New $196.00
    $114.00
    Repair Yours $300.00
    MARSH BELLOFRAM SLA-120-ALA

    MARSH BELLOFRAM

    ATC DIVERSIFIED ELECTRONICS

    SLA-120-ALA

    PHASE SEQUENCE/LOSS MONITOR, 120V, LOCK SHAFT ADJUSTABLE, 11 PIN CIRCULAR BASE
    ✓ IN STOCK!
    $645.00 Buy New $645.00
    $327.40
    Repair Yours $300.00
    MARSH BELLOFRAM SLA-220-AFN

    MARSH BELLOFRAM

    ATC

    SLA-220-AFN

    DISCONTINUED BY MANUFACTURER, PHASE SEQUENCE, LOSS MONITOR
    ✓ IN STOCK!
    Buy Surplus As Low As $209.43
    $209.43
    Repair Yours $300.00
    MARSH BELLOFRAM SLA-230-ALER

    MARSH BELLOFRAM

    ATC DIVERSIFIED ELECTRONICS

    SLA-230-ALER

    PHASE MONITOR/RELAY, PHASE SEQUENCE/LOSS MONITOR, 230V, LOCK SHAFT ADJ, SURFACE MOUNT, MANUAL RESET
    ✓ IN STOCK!
    $787.00 Buy New $787.00
    $471.43
    Repair Yours $381.00
    MARSH BELLOFRAM SLA-230-ASA

    MARSH BELLOFRAM

    ATC DIVERSIFIED ELECTRONICS

    SLA-230-ASA

    PHASE MONITOR, 190-270 VAC, 50/60 HZ, CONTACTS 10 AMP @ 240 VAC, RESISTIVE 345 VAC
    ✓ IN STOCK!
    $155.00 Buy New $155.00
    $97.59
    Repair Yours $300.00
    MARSH BELLOFRAM SLA-440-AFE

    MARSH BELLOFRAM

    ATC DIVERSIFIED ELECTRONICS

    SLA-440-AFE

    PHASE MONITOR/RELAY
    ✓ IN STOCK!
    $560.00 Buy New $560.00
    $370.00
    Repair Yours $300.00
    MARSH BELLOFRAM SLA-440-ALE

    MARSH BELLOFRAM

    ATC DIVERSIFIED ELECTRONICS

    SLA-440-ALE

    PHASE MONITORING/RELAY, PHASE SEQUENCE/LOSS MONITOR, 430-480 VAC, 3 PHASE SUPPLY
    ✓ IN STOCK!
    $372.00 Buy New $372.00
    $233.26
    Repair Yours $300.00
    MARSH BELLOFRAM SLA-480-AFE

    MARSH BELLOFRAM

    ATC DIVERSIFIED ELECTRONICS

    SLA-480-AFE

    PHASE VOLTAGE MONITOR, RELAY, SLA SERIES, 480 VAC, SURFACE MOUNTED
    ✓ IN STOCK!
    $793.00 Buy New $793.00
    $603.00
    Repair Yours $300.00
    MARSH BELLOFRAM SLD-380-ALE

    MARSH BELLOFRAM

    ATC DIVERSIFIED ELECTRONICS

    SLD-380-ALE

    PHASE MONITOR RELAY,
    ✓ IN STOCK!
    $641.00 Buy New $641.00
    $488.00
    Repair Yours $300.00
    MARSH BELLOFRAM SLD-440-ALE

    MARSH BELLOFRAM

    ATC DIVERSIFIED ELECTRONICS

    SLD-440-ALE

    PHASE MONITORING RELAY, 440-480 VAC, DPDT, 3 AMP, 600 VAC, SCREW TERMINATION
    ✓ IN STOCK!
    $891.73 Buy New $891.73
    $535.04
    Repair Yours $300.00
    MARSH BELLOFRAM SLE-440-ALE

    MARSH BELLOFRAM

    ATC DIVERSIFIED ELECTRONICS

    SLE-440-ALE

    RELAY, PHASE LOSS, UNBALANCE & UNDER VOLTAGE RELAY
    ✓ IN STOCK!
    $730.00 Buy New $730.00
    $297.06
    Repair Yours $300.00
    MARSH BELLOFRAM SLM-120-ASE

    MARSH BELLOFRAM

    ATC DIVERSIFIED ELECTRONICS

    SLM-120-ASE

    PHASE MONITORS MICROPROCESSOR CONTROLLED,
    ✓ IN STOCK!
    $862.00 Buy New $862.00
    $656.00
    Repair Yours $322.91
    MARSH BELLOFRAM SLM-230-ASE

    MARSH BELLOFRAM

    ATC DIVERSIFIED ELECTRONICS

    SLM-230-ASE

    PHASE MONITOR, MICROPROCESSOR CONTROLLED, 200-250 VAC, CONTACTS: 10 AMP @ 240 VAC
    ✓ IN STOCK!
    $648.00 Buy New $648.00
    $363.85
    Repair Yours $308.00
    MARSH BELLOFRAM SLM-440-ASE

    MARSH BELLOFRAM

    ATC DIVERSIFIED ELECTRONICS

    SLM-440-ASE

    PHASE MONITOR, TIME DELAY, 440-490 VAC, 50/60 HZ, 3 AMP
    ✓ IN STOCK!
    $737.00 Buy New $737.00
    $487.00
    Repair Yours $300.00
    MARSH BELLOFRAM SLU-100-ASA

    MARSH BELLOFRAM

    ATC DIVERSIFIED ELECTRONICS

    SLU-100-ASA

    PHASE MONITORING RELAY, SLU-100 SERIES, UNIVERSAL, SPDT CONTACT FORM, 10 AMP, 8 PIN, 550 VAC SUPPLY, 240 V RATING
    ✓ IN STOCK!
    $207.00 Buy New $207.00
    $109.00
    Repair Yours $300.00
    MARSH BELLOFRAM SLU-100-ASD

    MARSH BELLOFRAM

    ATC DIVERSIFIED ELECTRONICS

    SLU-100-ASD

    PHASE MONITOR RELAY, SLU-100 SERIES, 3-PHASE, DIN RAIL MOUNT, UNIVERSAL, SPDT CONTACT FORM, 10 AMP, 550 VAC SUPPLY, 240 V RATING
    ✓ IN STOCK!
    $669.00 Buy New $669.00
    $509.00
    Repair Yours $306.00
    MARSH BELLOFRAM PBD-440-ALE

    MARSH BELLOFRAM

    ATC DIVERSIFIED ELECTRONICS

    PBD-440-ALE

    3 PHASE SEQUENCE & VOLTAGE BAND MONITOR/RELAYS, MAX VOLTAGE 550 VAC, ADJUSTABLE RANGES 390-480 UNDER/440-540 OVER, DPDT, CONTACT RATING 600 VAC, AUTOMATIC RESET
    ✓ IN STOCK!
    $592.00 Buy New $592.00
    $339.00
    Repair Yours $300.00
    MARSH BELLOFRAM PBD-480-ALE

    MARSH BELLOFRAM

    ATC DIVERSIFIED ELECTRONICS

    PBD-480-ALE

    PHASE SEQUENCE AND VOLTAGE BAND MONITOR,480VAC 50/60HZ,CONTACTS 10AMP 240VAC RES,360VA 600VAC IND
    ✓ IN STOCK!
    $592.00 Buy New $592.00
    $225.89
    Repair Yours $300.00
    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
    GENERAL ELECTRIC 12JBC53L3A

    GENERAL ELECTRIC

    12JBC53L3A

    DISCONTINUED BY MANUFACTURER, RELAY / PHASE DIRECTIONAL OVERCURRENT, TYPE JBC, 120 V, 60 CYCLES, INVERSE TIME OVERCURRENT 1.5/6 AMP, INSTANTANEOUS OVERCURRENT 4-16 AMP, DIRECTIONAL PICK-UP 2 ...
    ✓ IN STOCK!
    Buy Surplus As Low As $866.05
    $866.05
    Repair Yours $718.82
    LITTELFUSE PLR380A

    LITTELFUSE

    PLR380A

    LINE MONITOR, 3 PHASE, SERIES: PLR, OCTAL 8-PIN PLUG-IN, 340-450 VAC, 5 AMP, 50/60 HZ, SPDT
    ✓ IN STOCK!
    $173.00 Buy Surplus As Low As $132.00
    $132.00
    Repair Yours $300.00
    ASEA BROWN BOVERI 715330-F80

    ASEA BROWN BOVERI

    715330-F80

    DISCONTINUED BY MANUFACTURER, CURRENT TRANSFORMER POWER SHIELD
    ✓ IN STOCK!
    Buy Surplus As Low As $236.20
    $236.20
    PUNEET INDUSTRIAL CONTROLS 1P10S

    PUNEET INDUSTRIAL CONTROLS

    1P10S

    DISCONTINUED BY MANUFACTURER, EARTH FAULT RELAY, ON DELAY TIMER, 1-5 AMP, 240 V, NO / NC
    ✓ IN STOCK!
    Buy Surplus As Low As $196.83
    $196.83
    Repair Yours $300.00
    ITI SPVRB-208

    ITI

    SPVRB-208

    PHASE VOLTAGE RELAY, MODEL SPVRB, 3-PHASE, 208 VAC, 60 HZ, 1-10 SECOND TIME DELAY TRIP, LED STATUS INDICATOR, 8% PHASE UNBALANCE, 1-10 SEC. ADJUSTABLE TRIP DELAY, DOOR OR PANEL MOUNTING, BI- ...
    ✓ IN STOCK!
    $2,303.17 Buy Surplus As Low As $831.67
    $831.67
    Repair Yours $690.29
    GENERAL ELECTRIC 350-E-P5-G5-H-E-S-C-P-1E-D-N

    GENERAL ELECTRIC

    MULTILIN

    350-E-P5-G5-H-E-S-C-P-1E-D-N

    DISCONTINUED BY MANUFACTURER, FEEDER PROTECTION, LCD, 5 AMP, 3 PHASE, 120-240 VAC / 125-250 VDC, STANDARD FACEPLATE, VOLTAGE PROTECTION, ENGLISH
    ✓ IN STOCK!
    Buy Surplus As Low As $2,405.70
    $2,405.70
    Repair Yours $2,218.59
    AREVA VAJS23ZG8323ACH

    AREVA

    VAJS23ZG8323ACH

    DISCONTINUED BY MANUFACTURER, TRIPPING RELAY, TYPE VAJ, 110 V
    ✓ IN STOCK!
    Buy Surplus As Low As $105.90
    $105.90
    Repair Yours $300.00
    HARTLAND CONTROLS HCR-12CT1AA

    HARTLAND CONTROLS

    HCR-12CT1AA

    DISCONTINUED BY MANUFACTURER, RELAY, COIL, 30AMP, 1HP/120VAC, 2.5HP/240VAC, NC 3AMP 227VAC
    ✓ IN STOCK!
    Buy Surplus As Low As $13.12
    $13.12
    Repair Yours $300.00
    TIME MARK CORP A258B-440

    TIME MARK CORP

    A258B-440

    DISCONTINUED BY MANUFACTURER, POWER MONITOR RELAY, 3-PHASE MONITOR, 440-480 VAC, 50/60 HZ, 8-PIN, LED INDICATOR, MODEL 258
    ✓ IN STOCK!
    Buy Surplus As Low As $49.86
    $49.86
    Repair Yours $300.00
    TIME MARK CORP A258B-208

    TIME MARK CORP

    A258B-208

    DISCONTINUED BY MANUFACTURER, POWER MONITOR RELAY, 3-PHASE MONITOR, 208-250 VAC, 50/60HZ, 8 PIN, LED INDICATOR, MODEL 258
    ✓ IN STOCK!
    Buy Surplus As Low As $55.40
    $55.40
    Repair Yours $300.00
    MARS 32585

    MARS

    32585

    DISCONTINUED BY MANUFACTURER, AC CURRENT MONITOR, 24-240 VAC, RELAY AMP RATING 8 A, 5-20 AMP TRIP POINT ADJUSTABLE, TRIP DELAY ADJUSTABLE TO 50 SEC
    ✓ IN STOCK!
    Buy Surplus As Low As $137.00
    $137.00
    Repair Yours Contact Us
    MINILEC D1VCR2-AC-220-240V

    MINILEC

    D1VCR2-AC-220-240V

    DISCONTINUED BY MANUFACTURER, UNDER/OVER VOLTAGE RELAY, SINGLE PHASE, 220-240 V, LED INDICATOR
    ✓ IN STOCK!
    Buy Surplus As Low As $21.00
    $21.00
    MARSH BELLOFRAM PBE-440-ASE

    MARSH BELLOFRAM

    ATC DIVERSIFIED ELECTRONICS

    PBE-440-ASE

    THREE PHASE VOLTAGE BAND MONITOR RELAY
    ✓ IN STOCK!
    $1,238.17 Buy New $1,238.17
    $742.90
    Repair Yours $541.00
    MARSH BELLOFRAM PRA-100-AFA

    MARSH BELLOFRAM

    ATC DIVERSIFIED ELECTRONICS

    PRA-100-AFA

    PHASE SEQUENCE MONITOR, 208-480VAC SUPPLY, CONTACTS 10A AT 240VAC, 8PIN SOCKET
    ✓ IN STOCK!
    $309.00 Buy New $309.00
    $235.00
    Repair Yours $300.00
    MARSH BELLOFRAM GFD-100

    MARSH BELLOFRAM

    ATC DIVERSIFIED ELECTRONICS

    GFD-100

    THREE PHASE GROUND FAULT DISPLAY, 208 - 600 VAC, TERMINAL STYLE - WIRE LEADS, 0 C - 55 C
    ✓ IN STOCK!
    $1,144.70 Buy New $1,144.70
    $686.82
    Repair Yours $304.00
    MARSH BELLOFRAM SUA-230-ALA

    MARSH BELLOFRAM

    ATC DIVERSIFIED ELECTRONICS

    SUA-230-ALA

    PHASE MONITOR RELAY, SPDT, 10 AMP AT 240 VAC, 190-270 V ADJUSTABLE, LOCK SHAFT, OCTAL PLUG IN
    ✓ IN STOCK!
    $339.00 Buy New $339.00
    $164.75
    Repair Yours $300.00
    MARSH BELLOFRAM UOA-110-DKA

    MARSH BELLOFRAM

    ATC DIVERSIFIED ELECTRONICS

    UOA-110-DKA

    SINGLE PHASE UNDER VOLTAGE MONITOR/RELAY, 110 VDC, 92-130 VDC TRIP RANGE, 0.05 SEC TO 0.5 SEC, DPDT (2 FORM C), 5 A @ 240 VAC
    ✓ IN STOCK!
    $311.90 Buy New $311.90
    $187.14
    Repair Yours $300.00
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