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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 351-400 of 843.
    RADWELL RAD-PM-002

    RADWELL

    RAD-PM-002

    PHASE MONITOR RELAY, 3-PHASE , 190-500 VAC, DIN RAIL, 10 AMP DPDT RELAYS, PHASE LOSS, REVERSAL - FIXED, UNBALANCE, OVER/UNDER VOLTAGE - ADJUSTABLE
    ✓ IN STOCK!
    $180.00 Buy New $180.00
    $91.50
    Repair Yours $300.00
    GIC MAC04D0100

    GIC

    MAC04D0100

    VOLTAGE MONITORING RELAY, DPDT, 415VAC; PRODUCT RANGE:SM 500 SERIES; CONTACT CONFIGURATION:DPDT; CONTACT CURRENT:5A; RELAY MOUNTING:DIN RAIL; CONTACT VOLTAGE VAC:250V; RELAY TERMINALS:SCREW; ...
    ✓ IN STOCK!
    $97.00 Buy Surplus As Low As $59.00
    $59.00
    Repair Yours Contact Us
    GOTRONIC 585109

    GOTRONIC

    585109

    POWER LINE MONITOR,480VAC,50/60HZ
    ✓ IN STOCK!
    $372.84 Buy Surplus As Low As $173.24
    $173.24
    Repair Yours $300.00
    OMRON SDV-B-6

    OMRON

    SDV-B-6

    VOLTAGE SENSOR, 110VAC, 8PIN, 4-10V PICK UP, 70-95% OF PICK UP DROP OUT
    ✓ IN STOCK!
    $234.72 Buy Surplus As Low As $87.78
    $87.78
    Repair Yours $300.00
    EATON CORPORATION C323PN12B

    EATON CORPORATION

    CUTLER HAMMER

    C323PN12B

    OBSOLETE, PHASE MONITOR RELAY, 208-240V, 50/60HZ
    ✓ IN STOCK!
    Buy Surplus As Low As $91.19
    $91.19
    Repair Yours $300.00
    MOTOR PROTECTION ELEC. INC 002-480-123

    MOTOR PROTECTION ELEC. INC

    002-480-123

    DISCONTINUED BY MANUFACTURER, PHASE MONITOR , SUGGESTED REPLACEMENT IS 001-DVM-DR
    ✓ IN STOCK!
    Buy Surplus As Low As $88.00
    $88.00
    Repair Yours $300.00
    ASEA BROWN BOVERI 1SVR550824R9100

    ASEA BROWN BOVERI

    1SVR550824R9100

    PHASE MONITORING RELAY, SINGLE FUNCTION, CM-PFE SERIES, 3 PHASE,4 AMP, 28-440 VAC, 50/60 HZ, 1 C/O (SPDT) OUTPUT, SCREW TYPE TERMINALS, -20 TO +85 DEGREES C, IP20/50, (CM-PFE)
    ✓ IN STOCK!
    $142.00 Buy Surplus As Low As $56.40
    $56.40
    Repair Yours $300.00
    ASEA BROWN BOVERI CM-ESS.1S

    ASEA BROWN BOVERI

    CM-ESS.1S

    VOLTAGE MONITORING RELAY, SPDT, 4 AMP, 250 VAC, 750 MW, 81-12 AWG, SCREW TYPE TERMINALS, DIN RAIL MOUNT, -40 TO +85 DEGREE C, (1SVR730830R0300)
    ✓ IN STOCK!
    $708.35 Buy Surplus As Low As $425.01
    $425.01
    Repair Yours $300.00
    KEARNEY NATIONAL INC 22.017-04-600-A/4H

    KEARNEY NATIONAL INC

    22.017-04-600-A/4H

    DISCONTINUED BY MANUFACTURER, FAULT INDICATOR CRAB, 600AMP
    ✓ IN STOCK!
    Buy Surplus As Low As $13.79
    $13.79
    TELE CONTROLS G2PM400VSY20 24-240VAC/DC

    TELE CONTROLS

    G2PM400VSY20 24-240VAC/DC

    VOLTAGE MONITORING RELAY, GAMMA SERIES, DPDT, 3 AMP, ZOOM VOLTAGE 24 TO 240 VAC/DC, SCREW TERMINALS, DIN RAIL MOUNT
    ✓ IN STOCK!
    $298.70 Buy New $298.70
    $221.00
    Repair Yours $200.00
    GENERAL ELECTRIC 350-E-P5-G5-H-E-S-N-N-1E-D-N

    GENERAL ELECTRIC

    MULTILIN

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

    DISCONTINUED BY MANUFACTURER, FEEDER PROTECTION RELAY, PHASE CURRENTS - 5 AMP / 3 PHASE, GROUND CURRENTS - 5 AMP STANDARD, 110-250 V DC, 110-230 V AC, 50/60HZ
    ✓ IN STOCK!
    Buy Surplus As Low As $1,608.00
    $1,608.00
    Repair Yours $1,334.64
    ASEA BROWN BOVERI 69326-2R

    ASEA BROWN BOVERI

    BALDOR RELIANCE

    69326-2R

    RELAY, POWER TYPE, 24VDC COIL
    ✓ IN STOCK!
    Buy Surplus As Low As $19.80
    $19.80
    ASEA BROWN BOVERI 419904051AB

    ASEA BROWN BOVERI

    BALDOR RELIANCE

    419904051AB

    BRUSH EXTRUDER DUTY C
    ✓ IN STOCK!
    $86.89 Buy New $86.89
    $55.55
    Repair Yours $300.00
    MARSH BELLOFRAM VBA-208-ALA

    MARSH BELLOFRAM

    ATC DIVERSIFIED ELECTRONICS

    VBA-208-ALA

    SINGLE PHASE VOLTAGE BAND MONITOR/RELAYS
    ✓ IN STOCK!
    $554.60 Buy New $554.60
    $421.50
    Repair Yours $300.00
    MARSH BELLOFRAM VBA-208-AFN

    MARSH BELLOFRAM

    ATC DIVERSIFIED ELECTRONICS

    VBA-208-AFN

    SINGLE PHASE VOLTAGE BAND MONITOR/RELAYS
    ✓ IN STOCK!
    $901.67 Buy New $901.67
    $541.00
    Repair Yours $327.00
    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!
    $368.95 Buy New $368.95
    $221.37
    Repair Yours $300.00
    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 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
    $196.34
    Repair Yours $300.00
    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 SLD-380-ALE

    MARSH BELLOFRAM

    ATC DIVERSIFIED ELECTRONICS

    SLD-380-ALE

    PHASE MONITOR RELAY,
    ✓ IN STOCK!
    $646.62 Buy New $646.62
    $408.88
    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-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-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-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!
    $793.50 Buy New $793.50
    $471.43
    Repair Yours $381.00
    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 CMO-120-ASA-1

    MARSH BELLOFRAM

    ATC DIVERSIFIED ELECTRONICS

    CMO-120-ASA-1

    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, PLUG-IN ENCLOSURE, CURRENT TRIP POINTS - 0. ...
    ✓ IN STOCK!
    $757.50 Buy New $757.50
    $261.47
    Repair Yours $300.00
    GENERAL ELECTRIC 12CLPG12B3A

    GENERAL ELECTRIC

    12CLPG12B3A

    DISCONTINUED BY MANUFACTURER, CARRIER GROUND DIRECTIONAL RELAY, 120VAC, 5AMP, 60HZ, 125VDC, 1AMP, 1-4/2-8 OVERCURRENT AMP, TYPE CLPG12C
    ✓ IN STOCK!
    Buy Surplus As Low As $1,004.43
    $1,004.43
    Repair Yours $833.68
    REGAL REXNORD 3 1/2F SB SLEEVE

    REGAL REXNORD

    KOP FLEX

    3 1/2F SB SLEEVE

    3 1/2F SB SLEEVE, FAST COUPLING-500 , 3 1/2F SB SLEEVE
    ✓ IN STOCK!
    $2,802.00 Buy Surplus As Low As $1,616.89
    $1,616.89
    Repair Yours $895.00
    CR MAGNETICS CR7310-EH-24D-110-X-CD-ELR-R CRGFS-100

    CR MAGNETICS

    CR7310-EH-24D-110-X-CD-ELR-R CRGFS-100

    DISCONTINUED BY MANUFACTURER, GROUND FAULT SENSOR WITH CRGFS-100, SUPPLY: 24+/-10% VDC, TRIP RANGE: 1.0-10A, TIME DELAY: NONE, TRIP STATUS: ENER. HIGH, OUTPUT TYPE: RELAY, N.O. 20A N.C. 10A
    ✓ IN STOCK!
    Buy Surplus As Low As $80.79
    $80.79
    WESTINGHOUSE 1529F93A02

    WESTINGHOUSE

    1529F93A02

    DISCONTINUED BY MANUFACTURER, RELAY, BREAKER FAILURE RELAY, 125 VDC, 0.5-13.5 AMP, 50/60 HZ, IND 0.2-2 AMP, TRIP VOLTS 48/125/250 VDC, BF TIMER 25-175 MS
    ✓ IN STOCK!
    Buy Surplus As Low As $3,456.09
    $3,456.09
    Repair Yours $300.00
    ASEA BROWN BOVERI WVM911AL

    ASEA BROWN BOVERI

    SSAC

    WVM911AL

    DISCONTINUED BY MANUFACTURER, VOLTAGE MONITOR, 3 PHASE, 400-480 VAC, 0.25-30 SEC TRIP DELAY, 0.25-64 SEC AUTO RESTART DELAY, 2-10% UNBALANCE, SELECTABLE AUTO/MANUAL RESET
    ✓ IN STOCK!
    Buy Surplus As Low As $1,120.40
    $1,120.40
    Repair Yours $550.00
    ASEA BROWN BOVERI DLM811

    ASEA BROWN BOVERI

    DLM811

    DISCONTINUED BY MANUFACTURER, VOLTAGE MONITOR, 3-PHASE, DIN RAIL MOUNT, 380-415 VAC, 2-20 SECONDS
    ✓ IN STOCK!
    Buy Surplus As Low As $225.00
    $225.00
    Repair Yours $300.00
    WESTINGHOUSE 293B004A13

    WESTINGHOUSE

    293B004A13

    DISCONTINUED BY MANUFACTURER, RELAY, 2-8 AMPS @ 60 HZ, 48-125 VDC, 0.2-2 AMPS INDICATOR UNIT
    ✓ IN STOCK!
    Buy Surplus As Low As $695.99
    $695.99
    Repair Yours $577.67
    SIEMENS RCC5P1

    SIEMENS

    RCC5P1

    CONTROL RELAY 5POLE 5NO/5NC 110/120VAC COIL
    ✓ IN STOCK!
    $111.00 Buy Surplus As Low As $40.70
    $40.70
    Repair Yours $300.00
    GOTRONIC 585100

    GOTRONIC

    585100

    POWER LINE MONITOR 480VAC
    ✓ IN STOCK!
    Buy Surplus As Low As $231.87
    $231.87
    Repair Yours $300.00
    SIEMENS 3UF7113-1BA00-0

    SIEMENS

    3UF7113-1BA00-0

    DISCONTINUED BY MANUFACTURER 04/01/2022, CURRENT/VOLTAGE MEASURING MODULE, 20-200 AMP SET CURRENT, 690 V, 120 MM WIDTH, BUSBAR CONNECTION, REPLACED BY 3UF7113-1BA01-0
    ✓ IN STOCK!
    $1,243.00 Buy Surplus As Low As $945.00
    $945.00
    Repair Yours $620.00
    SIEMENS 3TX7130-0RD03

    SIEMENS

    3TX7130-0RD03

    OPEN POWER RELAY, HEAVY DUTY DPST, MAGNETIC BLOWOUT 40A, 48VDC, OPTIONAL METAL COVER 3TX7144-1M0
    ✓ IN STOCK!
    $162.00 Buy Surplus As Low As $107.00
    $107.00
    Repair Yours $300.00
    SIEMENS 3RH1131-1BA40

    SIEMENS

    FURNAS ELECTRIC CO

    3RH1131-1BA40

    CONTACTOR RELAY, 3 N/0 + 1 N/C, 12 VDC, SCREW TERMINAL
    ✓ IN STOCK!
    Buy Surplus As Low As $74.03
    $74.03
    SIEMENS 3RS1800-1HW00

    SIEMENS

    3RS1800-1HW00

    (PRICE/PC) RELAY, 24 - 240VUC, 3CO,SCREW, CONTROLS - INTERFACE 3RS , 3RS1800-1HW00
    ✓ IN STOCK!
    $175.00 Buy Surplus As Low As $68.22
    $68.22
    Repair Yours $300.00
    SIEMENS 3RS1800-2BQ00

    SIEMENS

    3RS1800-2BQ00

    (PRICE/PC) RELAY, 24VUC & 110 - 120VAC, 2CO,SPRING, CONTROLS - INTERFACE 3RS , 3RS1800-2BQ00
    ✓ IN STOCK!
    $133.00 Buy Surplus As Low As $88.00
    $88.00
    Repair Yours $300.00
    SIEMENS 3TX7014-1AM00

    SIEMENS

    FURNAS ELECTRIC CO

    3TX7014-1AM00

    DISCONTINUED BY MANUFACTURER, OUTPUT COUPLER , WITH PLUG-IN RELAY, 1 NO CONTACT, SCREW TERMINAL, 24 V DC, ENCLOSURE WIDTH 6.2 MM
    ✓ IN STOCK!
    $23.45 Buy Surplus As Low As $15.11
    $15.11
    SIEMENS 3UG4621-1AW30

    SIEMENS

    3UG4621-1AW30

    DIGITAL MONITORING RELAY, CURRENT MONITORING, 2-500 MA AC/DC, 24-240 VAC/DC (50-60 HZ), ON DELAY AND NOISE PULSES DELAY 0.1 TO 20 S, HYSTERESIS 0.1 TO 250 MA, 1 CHANGE-OVER CONTACT
    ✓ IN STOCK!
    $427.00 Buy Surplus As Low As $98.71
    $98.71
    Repair Yours $300.00
    SIEMENS 3TX7116-5NC03

    SIEMENS

    3TX7116-5NC03

    RELAY, PREMIUM LED, MECHANICAL FLAG, 11-PIN, 3-POLE DOUBLE THROW, 15 A, 24 VDC, SOCKET MOUNT, SQUARE BASE, USES SOCKET 3TX7144-4E8 , 3TX7116-5NC03
    ✓ IN STOCK!
    $62.00 Buy Surplus As Low As $48.00
    $48.00
    Repair Yours $300.00
    AUTOMATION DIRECT GFS30-E1C-120A-F

    AUTOMATION DIRECT

    ACUAMP

    GFS30-E1C-120A-F

    ACUAMP GROUND FAULT SENSOR, FIXED CORE, 5, 10, OR 30 MA SELECTABLE TRIP POINT, RELAY, SPDT NORMALLY ENERGIZED, AUTOMATIC RESET OUTPUT, 120 VAC OPERATING VOLTAGE.
    ✓ IN STOCK!
    $343.40 Buy Surplus As Low As $136.99
    $136.99
    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 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 CMU-120-ASA-5

    MARSH BELLOFRAM

    ATC DIVERSIFIED ELECTRONICS

    CMU-120-ASA-5

    UNDER CURRENT MONITOR, CMU SERIES, 120 VAC, PLUG-IN, 1 TO 5 AMP ADJUSTABLE CURRENT TRIP POINTS, 11 PIN
    ✓ IN STOCK!
    $403.00 Buy New $403.00
    $253.63
    Repair Yours $300.00
    MARSH BELLOFRAM CMO-120-ASE-10

    MARSH BELLOFRAM

    ATC DIVERSIFIED ELECTRONICS

    CMO-120-ASE-10

    OVERCURRENT MONITOR RELAY, CMO SERIES, 24-120 V AC/DC, 50/60 HZ, SURFACE MOUNT, 2-10 AMP ADJUSTABLE TRIP POINTS
    ✓ IN STOCK!
    $534.96 Buy New $534.96
    $250.37
    Repair Yours $300.00
    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!
    $491.00 Buy New $491.00
    $236.23
    Repair Yours $300.00
    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!
    $476.00 Buy New $476.00
    $288.04
    Repair Yours $300.00
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