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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 501-550 of 838.
    RADWELL VERIFIED SUBSTITUTE DMLUBRAAA-SUB

    RADWELL VERIFIED SUBSTITUTE

    DMLUBRAAA-SUB

    SUBSTITUTE FOR SSAC DMLUBRAAA, 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!
    CAN$205.57 Buy New CAN$205.57
    Repair Yours CAN$359.24
    WESTINGHOUSE 1272173A

    WESTINGHOUSE

    1272173A

    DISCONTINUED BY MANUFACTURER, IMPEDANCE RELAY, HCZ TYPE, 115VAC, 60HZ, 125VDC
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$414.99
    CAN$414.99
    Repair Yours CAN$360.00
    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 CAN$144.21
    CAN$144.21
    Repair Yours CAN$357.16
    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!
    CAN$97.73 Buy Surplus As Low As CAN$33.26
    CAN$33.26
    Repair Yours CAN$355.50
    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!
    CAN$151.41 Buy Surplus As Low As CAN$119.09
    CAN$119.09
    CARLO GAVAZZI SJ-185-230-500V

    CARLO GAVAZZI

    ELECTROMATIC

    SJ-185-230-500V

    DISCONTINUED BY MANUFACTURER, VOLTAGE CONTROL, 230 VAC, 50/60 HZ, RANGE 100-500 VAC
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$215.50
    CAN$215.50
    OMRON SDV-A-200V

    OMRON

    SDV-A-200V

    VOLTAGE SENSOR, 2 AMPS, 200 VOLTS (AC), 8 PIN CONNECTION
    ✓ IN STOCK!
    CAN$363.24 Buy Surplus As Low As CAN$163.01
    CAN$163.01
    Repair Yours CAN$362.13
    DOLD BD9080.12 3AC400V 50/60HZ AC230V 50/60HZ

    DOLD

    BD9080.12 3AC400V 50/60HZ AC230V 50/60HZ

    DISCONTINUED BY MANUFACTURER, PHASE MONITOR, VARIMIETER PRO, L1/L2/L3: 3AC 400 V 50/60 HZ, A1/A2: AC 230 V 50/60 HZ, ADJUSTABLE TIME DELAY BETWEEN 1.1-5 S, 0045382
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$230.25
    CAN$230.25
    Repair Yours CAN$350.17
    RHOMBERG SP430/380VAC-SP

    RHOMBERG

    SP430/380VAC-SP

    PHASE SEQUENCE/FAILURE/ASYMMETRY RELAY, 11PIN, 10AMP, SPDT, 380VAC, 5-15PERCENT NPS SENSITIVITY, LED INDICATING
    ✓ IN STOCK!
    CAN$202.11 Buy Surplus As Low As CAN$72.13
    CAN$72.13
    RHOMBERG SP430/400VAC-SP

    RHOMBERG

    SP430/400VAC-SP

    PHASE SEQUENCE/FAILURE/ASYMMETRY RELAY, 11PIN, 10AMP, SPDT, 400/415VAC, 5-15PERCENT NPS SENSITIVITY, LED INDICATING
    ✓ IN STOCK!
    CAN$201.09 Buy Surplus As Low As CAN$63.93
    CAN$63.93
    CR MAGNETICS CR5395-LH-ACV-101-B-CD-ELR-R

    CR MAGNETICS

    CR5395-LH-ACV-101-B-CD-ELR-R

    DC CURRENT SENSING RELAY, SUPPLY VOLTAGE 85-265VAC, TRIP RANGE 10-100AMPS, TIME DELAY 2-25 SEC, CALIBRATED DIAL, CRDCS-050 REMOTE DC SENSOR
    ✓ IN STOCK!
    CAN$462.18 Buy Surplus As Low As CAN$163.15
    CAN$163.15
    Repair Yours CAN$357.16
    ASHCROFT 351005PH02LXUL300

    ASHCROFT

    351005PH02LXUL300

    COMMERCIAL PRESSURE GAUGE 3-1/2IN. DIAL 1/4IN. LOWER CONN ABS CASE BRASS SOCKET 0-300 PSI RANGE
    ✓ IN STOCK!
    CAN$42.12 Buy Surplus As Low As CAN$26.03
    CAN$26.03
    GENERAL ELECTRIC 12IFC66AD1A

    GENERAL ELECTRIC

    12IFC66AD1A

    DISCONTINUED BY MANUFACTURER, PROT RELAY, LONG TIME OVERCURRENT, 50/60HZ
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$245.52
    CAN$245.52
    MATSUSHITA ELECTRIC CM1F-D-12V

    MATSUSHITA ELECTRIC

    AROMAT

    CM1F-D-12V

    RELAY, 35A, 12V, 5 PIN
    ✓ IN STOCK!
    CAN$20.42 Buy Surplus As Low As CAN$8.01
    CAN$8.01
    Repair Yours CAN$357.16
    EZ DIGITAL FG7005C

    EZ DIGITAL

    FG7005C

    SWEEP FUNCTION GENERATOR, LED DISPLAY, BUILT-IN FREQUENCY COUNTER, 0.05 HZ TO 5 MHZ IN 7 RANGE, 2% OF FULL SCALE ACCURACY, 115-230 V, 15 WATT
    ✓ IN STOCK!
    CAN$815.20 Buy Surplus As Low As CAN$216.91
    CAN$216.91
    Repair Yours CAN$357.16
    ASEA BROWN BOVERI DDA802A-63/0.03

    ASEA BROWN BOVERI

    DDA802A-63/0.03

    TYPE A RCD BLOCK,2P, 63A, 30MA
    ✓ IN STOCK!
    CAN$331.04 Buy Surplus As Low As CAN$134.36
    CAN$134.36
    Repair Yours CAN$360.23
    ASEA BROWN BOVERI DDA204A-63/0.03

    ASEA BROWN BOVERI

    DDA204A-63/0.03

    SENSOR, 63A, 7.6W, 4POLE, 230/400V, 30MA
    ✓ IN STOCK!
    CAN$660.69 Buy Surplus As Low As CAN$517.47
    CAN$517.47
    CR MAGNETICS CR7310-EH-120-.11-C-CD-ELR-R2

    CR MAGNETICS

    CR7310-EH-120-.11-C-CD-ELR-R2

    CR7310 - GROUND FAULT SENSING RELAY, SUPPLY VOLTAGE - 120 VAC, TRIP RANGE - 0.1 TO 1.0 AAC , TRIP ON DELAY - .1 TO 1 SEC, CALIBRATED DIAL, CRGFS-200 REMOTE CURRENT TRANSFORMER
    ✓ IN STOCK!
    CAN$370.10 Buy Surplus As Low As CAN$192.34
    CAN$192.34
    Repair Yours CAN$360.00
    CR MAGNETICS CR5395-LH-24D-110-C-CD-ELR-I

    CR MAGNETICS

    CR5395-LH-24D-110-C-CD-ELR-I

    CR5395 - DC CURRENT SENSING RELAY, SUPPLY VOLTAGE 24 VDC, TRIP RANGE - 1.0 TO 10 AAC, TRIP ON DELAY - .1 TO 1 SEC, CALIBRATED DIAL, INTERNAL TRANSFORMER
    ✓ IN STOCK!
    CAN$227.67 Buy Surplus As Low As CAN$135.68
    CAN$135.68
    Repair Yours CAN$353.59
    DOLD BA9041

    DOLD

    BA9041

    DISCONTINUED BY MANUFACTURER, PHASE MONITORING RELAY, DPDT CONTACTS, 3PHASE, 400VAC
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$184.52
    CAN$184.52
    Repair Yours CAN$360.00
    ASEA BROWN BOVERI WLM945A5S

    ASEA BROWN BOVERI

    SSAC

    WLM945A5S

    SSAC, ASEA BROWN BOVERI, WLM945A5S, VOLTAGE MONITOR THREE PHASE, 400-480VAC, 5SEC TRIP DELAY, 5SEC RESTART DELAY,
    ✓ IN STOCK!
    CAN$230.61 Buy Surplus As Low As CAN$103.17
    CAN$103.17
    Repair Yours CAN$357.16
    ASEA BROWN BOVERI 1SVR550881R9400

    ASEA BROWN BOVERI

    1SVR550881R9400

    (PRICE/EA) CM-PBE PHASE LOSS MONI. 3PH.+ N , 1SVR550881R9400
    ✓ IN STOCK!
    CAN$180.31 Buy Surplus As Low As CAN$141.77
    CAN$141.77
    Repair Yours CAN$357.16
    NK TECHNOLOGIES AGL3-SDT1-24U-ENE-TR3

    NK TECHNOLOGIES

    AGL3-SDT1-24U-ENE-TR3

    AC GROUND FAULT SENSORS, AGL SERIES,RELAY OUTPUT,SOLID-CORE,24U - 24 VAC/VDC POWERED, JUMPER SELECT 5, 10 OR 30 MA SETPOINT, NORMALLY ENERGIZED, BASE TERMINALS, SPDT 1 A @ 120 VAC, 2 A @ 30 ...
    ✓ IN STOCK!
    CAN$819.45 Buy Surplus As Low As CAN$623.80
    CAN$623.80
    Repair Yours CAN$281.38
    NK TECHNOLOGIES AG3-NOAC-24U-NF-TR3

    NK TECHNOLOGIES

    AG3-NOAC-24U-NF-TR3

    AC GROUND FAULT SENSORS, AG SERIES, SOLID STATE OUTPUT,SOLID-CORE,24U - 24 VAC/VDC POWERED, JUMPER SELECT 5, 10 OR 30 MA SETPOINT, NORMALLY DE-ENERGIZED, TOP TERMINALS, N.O. 1 A @ 240 VAC
    ✓ IN STOCK!
    CAN$586.94 Buy Surplus As Low As CAN$309.07
    CAN$309.07
    Repair Yours CAN$357.16
    OMRON K8DT-AW1TD

    OMRON

    K8DT-AW1TD

    MEASURING AND MONITORING, CURRENT RELAY, 1-PHASE, 24VAC, DIN RAIL, 50/60HZ
    ✓ IN STOCK!
    CAN$360.63 Buy Surplus As Low As CAN$201.60
    CAN$201.60
    Repair Yours CAN$353.54
    OMRON K8DT-AS3CD

    OMRON

    K8DT-AS3CD

    CURRENT MONITORING RLY, SPDT, 24V, DIN, PRODUCT RANGE:K8DT-AS SERIES, CONTACT CONFIGURATION:SPDT, CONTACT CURRENT:-, RELAY MOUNTING:DIN RAIL, CONTACT VOLTAGE VAC:-, RELAY TERMINALS:SCREW, CO ...
    ✓ IN STOCK!
    CAN$600.13 Buy Surplus As Low As CAN$230.57
    CAN$230.57
    Repair Yours CAN$353.54
    OMRON K8DT-AW3TA

    OMRON

    K8DT-AW3TA

    CURRENT MONITORING RLY, SPST, 240V, DIN, PRODUCT RANGE:K8DT-AW SERIES, CONTACT CONFIGURATION:SPST-NO, CONTACT CURRENT:5A, RELAY MOUNTING:DIN RAIL, CONTACT VOLTAGE VAC:250V, RELAY TERMINALS:S ...
    ✓ IN STOCK!
    CAN$659.32 Buy Surplus As Low As CAN$408.31
    CAN$408.31
    Repair Yours CAN$353.54
    MACROMATIC VMP480A

    MACROMATIC

    VMP480A

    VOLTAGE MONITOR RELAY FOR 480 VAC, 10 AMP RELAY, DPDT, ADJ PICK UP, FIXED DROP OUT AND TRIP DELAY, PLUG-IN
    ✓ IN STOCK!
    CAN$198.48 Buy New CAN$198.48
    CAN$151.70
    Repair Yours CAN$362.13
    MACROMATIC PCPU

    MACROMATIC

    PCPU

    MONITOR RELAY, 3-PHASE, 190-500VAC, 8 PIN SPDT, 10AMP, PHASE REVERSAL - FIXED TRIP
    ✓ IN STOCK!
    CAN$165.88 Buy New CAN$165.88
    CAN$60.96
    BENDER RCMA420-D-1

    BENDER

    RCMA420-D-1

    GROUND-FAULT MONITOR, FOR GROUNDED AND HIGH-RESISTANCE, 10MA-500MA, RMS MEASURMENT VALUES
    ✓ IN STOCK!
    CAN$2,157.04 Buy Surplus As Low As CAN$626.38
    CAN$626.38
    GAST MANUFACTURING AJ135G

    GAST MANUFACTURING

    AJ135G

    FILTER
    ✓ IN STOCK!
    CAN$229.67 Buy Surplus As Low As CAN$151.70
    CAN$151.70
    MARSH BELLOFRAM PRA-100-AFN-400

    MARSH BELLOFRAM

    ATC DIVERSIFIED ELECTRONICS

    PRA-100-AFN-400

    PHASE SEQUENCE MONITOR RELAY 10AMP 208-480VAC
    ✓ IN STOCK!
    CAN$72.40 Buy New CAN$72.40
    CAN$47.35
    Repair Yours CAN$357.16
    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!
    CAN$479.19 Buy New CAN$479.19
    CAN$287.80
    Repair Yours CAN$353.54
    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 CAN$190.36
    CAN$190.36
    Repair Yours CAN$355.50
    ASEA BROWN BOVERI DS201TK32A30

    ASEA BROWN BOVERI

    DS201TK32A30

    RCBO, 1P+N, 32A, 30MA SENSITIVITY
    ✓ IN STOCK!
    CAN$1,360.42 Buy Surplus As Low As CAN$640.89
    CAN$640.89
    Repair Yours CAN$397.29
    TE CONNECTIVITY 252-PVRU-PQBX-C6

    TE CONNECTIVITY

    CROMPTON INSTRUMENTS

    252-PVRU-PQBX-C6

    PHASE LOSS RELAY, 5 AMP, 120 VAC, 60 HZ, DIN RAIL MOUNT
    ✓ IN STOCK!
    CAN$446.59 Buy Surplus As Low As CAN$267.95
    CAN$267.95
    Repair Yours CAN$360.00
    MACROMATIC PMD575

    MACROMATIC

    PMD575

    PHASE MONITOR RELAY, 3 PHASE, 460-600V AC, 10A DPDT OUTPUT, PHASE LOSS / REVERSAL / UNBALANCE, OVERVOLTAGE / UNDERVOLTAGE, DIN RAIL MOUNT
    ✓ IN STOCK!
    CAN$375.70 Buy New CAN$375.70
    CAN$225.42
    FW MURPHY UVR505

    FW MURPHY

    UVR505

    DISCONTINUED BY MANUFACTURER, RELAY UNDER VOLTAGE, FRONT STATUS LEDS, 12 PORTS
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$440.92
    CAN$440.92
    Repair Yours CAN$354.47
    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 CAN$533.20
    CAN$533.20
    EATON CORPORATION ARD4L

    EATON CORPORATION

    CUTLER HAMMER

    ARD4L

    MACHINE TOOL RELAY, AR/ARD CONVERTIBLE CONTACT INDUSTRIAL CONTROL DC RELAY, FOUR-POLE, 24 VDC COIL VOLTAGE, 4 BLANK CAVITIES
    ✓ IN STOCK!
    CAN$1,110.09 Buy Surplus As Low As CAN$463.95
    CAN$463.95
    Repair Yours CAN$317.48
    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 CAN$92.15
    CAN$92.15
    SIEMENS 3RH1244-1BB40

    SIEMENS

    FURNAS ELECTRIC CO

    3RH1244-1BB40

    DISCONTINUED BY MANUFACTURER, CONTROL RELAY, SCREW TERMINALS, 4NO, 4NC, 24VDC COIL
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$127.60
    CAN$127.60
    Repair Yours CAN$360.00
    GENERAL ELECTRIC 12IFC53A1A

    GENERAL ELECTRIC

    12IFC53A1A

    DISCONTINUED BY MANUFACTURER, INVERSE TIME OVERCURRENT RELAY, IFC TYPE, NON-DIRECTIONAL SINGLE-PHASE, 50/60HZ RATING, 14 INPUT POINTS, TIME RELAY TEST BUTTON
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$507.00
    CAN$507.00
    Repair Yours CAN$354.47
    DOLD IK9046 DC24V

    DOLD

    IK9046 DC24V

    VOLTAGE MONITOR W/LED 1NC/NO 1-3AMP 230VAC 24VDC
    ✓ IN STOCK!
    CAN$181.47 Buy Surplus As Low As CAN$138.94
    CAN$138.94
    Repair Yours CAN$353.54
    NORTONICS FOXTAM LIMITED YWRUP-S-400V-3W

    NORTONICS FOXTAM LIMITED

    FOXTAM CONTROLS

    YWRUP-S-400V-3W

    DISCONTINUED BY MANUFACTURER, VOLTAGE MONITORING RELAY, 10AMP, 400V, 3W
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$153.12
    CAN$153.12
    ASEA BROWN BOVERI 1SVR760669R9400

    ASEA BROWN BOVERI

    1SVR760669R9400

    COUPLING UNIT, VOLTAGE RANGE EXPANSION FOR CM-IWN.1, 690VAC, 1000VDC
    ✓ IN STOCK!
    CAN$648.63 Buy Surplus As Low As CAN$218.20
    CAN$218.20
    Repair Yours CAN$357.16
    ASEA BROWN BOVERI 1SVR740824R9300

    ASEA BROWN BOVERI

    1SVR740824R9300

    MONITOR RELAY, 3 PHASE, 4 AMP, 2230-500 VAC, 2 CO (SPDT CONTACTS), SCREW TYPE TERMINAL, DIN RAIL MOUNT, -25 T0+60 DEGREES C, (CM-PFS.P)
    ✓ IN STOCK!
    CAN$271.16 Buy Surplus As Low As CAN$212.66
    CAN$212.66
    Repair Yours CAN$360.00
    HONGFA HFD23/012-1ZS

    HONGFA

    HFD23/012-1ZS

    SIGNAL RELAY, SPDT, SENSITIVE, 12V/2A/TH ROHS COMPLIANT: YES
    ✓ IN STOCK!
    CAN$2.29 Buy Surplus As Low As CAN$1.47
    CAN$1.47
    Repair Yours CAN$355.50
    SYMCOM 201A

    SYMCOM

    201A

    DISCONTINUED BY MANUFACTURER, PROTECTION RELAY, MOTORSAVER, PHASE LOSS DETECTION, REVERSE PHASE, 3 PHASE, 190/480 VAC, 50/60 HZ, 8-PIN PLUG-IN, SPDT OUTPUT, (REPLACED BY LITTELFUSE 201A)
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$133.98
    CAN$133.98
    SIEMENS 3RH11222JC40

    SIEMENS

    3RH11222JC40

    CONTROL RELAY. 2NO+2NC
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$229.67
    CAN$229.67
    Repair Yours CAN$357.97
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