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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 801-850 of 838.
    ASEA BROWN BOVERI HLMUDNAAN

    ASEA BROWN BOVERI

    SSAC

    HLMUDNAAN

    VOLTAGE MONITOR, HLM SERIES, 3 PHASE
    ✓ IN STOCK!
    CAN$483.51 Buy Surplus As Low As CAN$241.41
    CAN$241.41
    Repair Yours CAN$300.00
    SIEMENS 3UG4511-1BN20

    SIEMENS

    3UG4511-1BN20

    ANALOG MONITORING RELAY, PHASE SEQUENCE MONITORING 3 X 160, 260V, 50/60HZ, DIN RAIL
    ✓ IN STOCK!
    CAN$155.00 Buy Surplus As Low As CAN$103.00
    CAN$103.00
    Repair Yours Contact Us
    SIEMENS 3TX7130-0RF03

    SIEMENS

    3TX7130-0RF03

    OPEN RELAY. DPDT. MAG BLO. 40A. 110VDC, OPEN POWER RELAY HEAVY DUTY DPDT, MAG BLOWOUT 40A, 110VDC OPTIONAL METAL COVER 3TX7144-1M0
    ✓ IN STOCK!
    CAN$113.00 Buy Surplus As Low As CAN$75.00
    CAN$75.00
    Repair Yours Contact Us
    SIEMENS 3RS1800-1BQ00

    SIEMENS

    3RS1800-1BQ00

    DISCONTINUED BY MANUFACTURER 01/10/2018, COUPLING RELAY, 2 CHANGE-OVER CONTACTS, 24 V & 110-120 VAC/DC, INDUSTRIAL ENCLOSURE, SCREW TERMINAL
    ✓ IN STOCK!
    CAN$77.00 Buy Surplus As Low As CAN$47.00
    CAN$47.00
    Repair Yours Contact Us
    SIEMENS 3UG4614-1BR20

    SIEMENS

    3UG4614-1BR20

    MONITORING RELAY 3 PHASE VOLTAGE INSULATION MONITORING 22.5MM WIDTH SCREW TERMINAL, ASM_MONITOR 3UG4614-1BR20-MONITORING_RELAYS_SCREW_TERMINAL
    ✓ IN STOCK!
    CAN$215.00 Buy Surplus As Low As CAN$129.00
    CAN$129.00
    Repair Yours CAN$250.00
    SIEMENS 3UG5514-1BR20

    SIEMENS

    3UG5514-1BR20

    ANALOG ADJUSTMENT MONITORING RELAY, PHASE FAILURE, PHASE SEQUENCE, ASYMMETRY AND UNDER-VOLTAGE MONITORING 3X 160-690 V AC, 15-70 HZ 2 CHANGEOVER CONTACTS SCREW TERMINAL
    ✓ IN STOCK!
    CAN$409.00 Buy Surplus As Low As CAN$246.00
    CAN$246.00
    Repair Yours CAN$250.00
    ICM ICM450A

    ICM

    ICM450A

    PRGRMBL 3-PHASE LINE VOLT MONITOR, 25-FAULT MEMORY STORAGE, NON-VOLATILE, IDENTIFIES FRONT AND BACK SIDE FAULTS, UNIVERSAL VOLTAGE OPERATION: 190-630 VAC
    ✓ IN STOCK!
    CAN$412.96 Buy Surplus As Low As CAN$215.03
    CAN$215.03
    Repair Yours CAN$300.00
    ASEA BROWN BOVERI CM-SRS.22S

    ASEA BROWN BOVERI

    CM-SRS.22S

    CURRENT MONITORING RELAY, 24-240V AC/DC, 50/60 HZ, OVER- OR UNDERCURRENT MONITORING, SCREW TERMINALS, DIN RAIL MOUNT
    ✓ IN STOCK!
    CAN$611.62 Buy Surplus As Low As CAN$328.05
    CAN$328.05
    Repair Yours CAN$300.00
    LITTELFUSE 250A

    LITTELFUSE

    250A

    PHASE RELAY, DPDT, 190-480V, PANEL, PRODUCT RANGE:250A SERIES, PANEL MOUNT, SCREW TERMINATION, ROHS COMPLIANT
    ✓ IN STOCK!
    CAN$468.89 Buy Surplus As Low As CAN$235.70
    CAN$235.70
    Repair Yours CAN$300.00
    CR MAGNETICS CR4395-EH-120-110-A-CD-ELR-I

    CR MAGNETICS

    CR4395-EH-120-110-A-CD-ELR-I

    AC CURRENT SENSING RELAY, SOLID CORE INTERNAL CT, 50 - 400 HZ FREQ RANGE, 120 VAC +/- 10% POWER SUPPLY, OVERCURRENT DETECTION, NON-LATCHING, 0.5 - 6 SECOND ADJUSTABLE TIME DELAY, 1 - 10 AAC ...
    ✓ IN STOCK!
    CAN$180.38 Buy Surplus As Low As CAN$98.77
    CAN$98.77
    Repair Yours CAN$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!
    CAN$202.11 Buy Surplus As Low As CAN$78.07
    CAN$78.07
    Repair Yours CAN$300.00
    TIME MARK CORP 20

    TIME MARK CORP

    20

    3-PHASE-MONITORS,WITH TRIP AND RESTART DELAYS, 190-480VAC, SIZE 3.91IN X 2.2IN X 2.3IN
    ✓ IN STOCK!
    CAN$188.87 Buy Surplus As Low As CAN$104.76
    CAN$104.76
    Repair Yours CAN$300.00
    ASEA BROWN BOVERI 419904051AB

    ASEA BROWN BOVERI

    BALDOR RELIANCE

    419904051AB

    BRUSH EXTRUDER DUTY C
    ✓ IN STOCK!
    CAN$126.42 Buy Surplus As Low As CAN$75.82
    CAN$75.82
    Repair Yours CAN$300.00
    MARSH BELLOFRAM VBA-208-ALA

    MARSH BELLOFRAM

    ATC DIVERSIFIED ELECTRONICS

    VBA-208-ALA

    SINGLE PHASE VOLTAGE BAND MONITOR/RELAYS
    ✓ IN STOCK!
    CAN$659.00 Buy New CAN$659.00
    CAN$501.00
    Repair Yours CAN$329.00
    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!
    CAN$472.00 Buy New CAN$472.00
    CAN$284.00
    Repair Yours CAN$250.00
    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!
    CAN$430.00 Buy New CAN$430.00
    CAN$327.00
    Repair Yours CAN$250.00
    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!
    CAN$823.00 Buy New CAN$823.00
    CAN$494.00
    Repair Yours CAN$411.00
    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!
    CAN$823.00 Buy New CAN$823.00
    CAN$461.99
    Repair Yours CAN$384.00
    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!
    CAN$288.00 Buy New CAN$288.00
    CAN$146.00
    Repair Yours CAN$250.00
    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!
    CAN$1,025.00 Buy New CAN$1,025.00
    CAN$588.00
    Repair Yours CAN$489.00
    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!
    CAN$903.00 Buy New CAN$903.00
    CAN$517.99
    Repair Yours CAN$430.00
    MARSH BELLOFRAM SLE-440-ALE

    MARSH BELLOFRAM

    ATC DIVERSIFIED ELECTRONICS

    SLE-440-ALE

    RELAY, PHASE LOSS, UNBALANCE & UNDER VOLTAGE RELAY
    ✓ IN STOCK!
    CAN$1,017.00 Buy New CAN$1,017.00
    CAN$611.00
    Repair Yours CAN$508.00
    MARSH BELLOFRAM SLD-380-ALE

    MARSH BELLOFRAM

    ATC DIVERSIFIED ELECTRONICS

    SLD-380-ALE

    PHASE MONITOR RELAY,
    ✓ IN STOCK!
    CAN$894.00 Buy New CAN$894.00
    CAN$680.00
    Repair Yours CAN$446.00
    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!
    CAN$518.00 Buy New CAN$518.00
    CAN$297.00
    Repair Yours CAN$250.00
    MARSH BELLOFRAM SLA-440-AFE

    MARSH BELLOFRAM

    ATC DIVERSIFIED ELECTRONICS

    SLA-440-AFE

    PHASE MONITOR/RELAY
    ✓ IN STOCK!
    CAN$780.00 Buy New CAN$780.00
    CAN$515.00
    Repair Yours CAN$389.00
    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!
    CAN$202.00 Buy New CAN$202.00
    CAN$117.01
    Repair Yours CAN$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!
    CAN$898.00 Buy New CAN$898.00
    CAN$462.00
    Repair Yours CAN$384.00
    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!
    CAN$272.00 Buy New CAN$272.00
    CAN$153.00
    Repair Yours CAN$300.00
    DOLD AD5999 AC50/60HZ 230V

    DOLD

    AD5999 AC50/60HZ 230V

    FAULT ANNUNCIATOR SYSTEM, 230 VAC, 3 ALARM INPUTS, ALARM INPUTS EXTENDABLE UP TO 203, ENERGIZED ON TRIP, (0032370)
    ✓ IN STOCK!
    CAN$547.74 Buy Surplus As Low As CAN$179.67
    CAN$179.67
    Repair Yours CAN$563.63
    MEGACON KCG592

    MEGACON

    KCG592

    DISCONTINUED BY MANUFACTURER, LOSS OF MAINS PROTECTION RELAY, INPUT: 100-120/200-240/380-415/440-460 VAC 40-70 HZ, SCREW CLAMP TERMINALS, OPERATING TEMPERATURE -20 TO 70 ºC, DIN-RAIL/SCREW M ...
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$284.75
    CAN$284.75
    Repair Yours CAN$375.76
    DOLD BD9080.12 3AC230V UH AC230V 0,1-5S

    DOLD

    BD9080.12 3AC230V UH AC230V 0,1-5S

    PHASE MONITOR, ARTICLE NUMBER: 0045763, VARIMETER PRO SERIES, BD 9080, 2 CHANGEOVER CONTACTS, 3AC 230V NOMINAL, 230VAC AUX, 0.1-5SEC RELEASE DELAY, DE-ENERGIZED ON TRIP
    ✓ IN STOCK!
    CAN$648.18 Buy Surplus As Low As CAN$387.03
    CAN$387.03
    Repair Yours CAN$375.76
    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 CAN$141.55
    CAN$141.55
    DOLD IP5883.83 AC/DC80-230V

    DOLD

    IP5883.83 AC/DC80-230V

    RESIDUAL CURRENT MONITOR, 2 NO/NC, 80-230 VAC/DC, DIN RAIL MOUNTING, (0058463)
    ✓ IN STOCK!
    CAN$1,329.80 Buy Surplus As Low As CAN$613.97
    CAN$613.97
    Repair Yours CAN$563.63
    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!
    CAN$1,194.90 Buy Surplus As Low As CAN$418.12
    CAN$418.12
    Repair Yours CAN$563.63
    CEE RAD7004

    CEE

    RAD7004

    DISCONTINUED BY MANUFACTURER, VOLTAGE RELAY, 110V
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$103.30
    CAN$103.30
    Repair Yours CAN$563.63
    GRAINGER 6X555

    GRAINGER

    GRAINGER APPROVED VENDOR

    6X555

    RELAY 35AMP 1POLE N/C POTENTIAL RELAY
    ✓ IN STOCK!
    CAN$36.75 Buy Surplus As Low As CAN$13.96
    CAN$13.96
    Repair Yours CAN$357.16
    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!
    CAN$597.00 Buy New CAN$597.00
    CAN$454.00
    Repair Yours CAN$298.00
    MEGACON KSQ331NA

    MEGACON

    KSQ331NA

    CHECK SYNCHRONISING RELAY, VOLTAGE DIFFERENTIAL MONITORING, 380-415V AC, 50/60HZ
    ✓ IN STOCK!
    CAN$636.86 Buy Surplus As Low As CAN$363.93
    CAN$363.93
    Repair Yours CAN$482.35
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