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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 846.
    AUTOMATION DIRECT GFS30-E1C-24-F

    AUTOMATION DIRECT

    ACUAMP

    GFS30-E1C-24-F

    ACUAMP GROUND FAULT SENSOR, FIXED CORE, 5, 10, OR 30 MA SELECTABLE TRIP POINT, RELAY, SPDT NORMALLY ENERGIZED, AUTOMATIC RESET OUTPUT, 24 VAC/VDC OPERATING VOLTAGE.
    CAN$484.10 Buy Surplus As Low As CAN$273.21
    CAN$273.21
    Repair Yours CAN$362.15
    R-K ELECTRONICS TVM-400-20-2002

    R-K ELECTRONICS

    TVM-400-20-2002

    UNDER & OVER VOLTAGE 3 PHASE VOLTAGE MONITOR, UNDERVOLTAGE - OVER VOLTAGE - PHASE LOSS - PHASE ROTATION, ADJUSTABLE 410 TO 490VAC 3Ø, 10PCT, 2 SECOND PICK-UP & DROP-OUT DELAY, BASE KEY POSIT ...
    CAN$220.08 Buy Surplus As Low As CAN$124.06
    CAN$124.06
    Repair Yours CAN$300.00
    R-K ELECTRONICS PVC-200-AR

    R-K ELECTRONICS

    PVC-200-AR

    PHASE LOSS & PHASE REVERSAL RELAY, LOW VOLTAGE, 208 TO 240VAC 3, 50/60 HZ, DPDT 600VAC CONTACTS, SCREW TERMINALS, SURFACE MOUNTING
    CAN$377.54 Buy Surplus As Low As CAN$210.18
    CAN$210.18
    Repair Yours CAN$362.15
    SCHWEITZER ENGINEERING 0501003X5625XB

    SCHWEITZER ENGINEERING

    0501003X5625XB

    RELAY DUAL OVERCURRENT SEL-501 5PH 125V 5.5W 60HZ
    CAN$1,026.32 Buy Surplus As Low As CAN$684.23
    CAN$684.23
    Repair Yours CAN$466.79
    ASEA BROWN BOVERI 1876048

    ASEA BROWN BOVERI

    1876048

    RELAY PROTCTV-DEV LB TYPE-SC 2-8AMP 25-60HZ
    Buy Surplus As Low As CAN$253.35
    CAN$253.35
    Repair Yours CAN$369.98
    SIEMENS 3UG4822-1AA40

    SIEMENS

    3UG4822-1AA40

    DIGITAL MONITORING RELAY CURRENT MONITORING, 22.5 MM FOR IO-LINK 0.05...10.0 A AC/DC OVERCURRENT AND UNDERCURRENT TRANSFORMER SCALING FACTOR HYSTERESIS 0.01 TO 5.0 A ON-DELAY TIME TRIPPING D ...
    CAN$319.00 Buy Surplus As Low As CAN$192.00
    CAN$192.00
    Repair Yours CAN$250.00
    MACROMATIC PMPU-FA8

    MACROMATIC

    PMPU-FA8

    MONITOR RELAY, 3-PHASE, 190-500 VAC, 8 PIN PLUG-IN, 10 AMP, SPDT, PHASE LOSS, REVERSAL, UNBALANCE, OVER/UNDER VOLTAGE - FIXED
    CAN$251.20 Buy New CAN$251.20
    CAN$151.01
    SIEMENS 47VA32D

    SIEMENS

    FURNAS ELECTRIC CO

    47VA32D

    DISCONTINUED BY MANUFACTURER, VOLTAGE MONITOR, CONTROL MODULE, A/B/C PHASES, N/O, 3 PH, 208 VAC, 60 HZ
    Buy Surplus As Low As CAN$331.85
    CAN$331.85
    Repair Yours CAN$367.93
    AUTOMATION DIRECT GFS30-D1C-24-F

    AUTOMATION DIRECT

    ACUAMP

    GFS30-D1C-24-F

    ACUAMP GROUND FAULT SENSOR, FIXED CORE, 5, 10, OR 30 MA SELECTABLE TRIP POINT, RELAY, SPDT NORMALLY DE-ENERGIZED, AUTOMATIC RESET OUTPUT, 24 VAC/VDC OPERATING VOLTAGE.
    CAN$528.31 Buy Surplus As Low As CAN$260.52
    CAN$260.52
    Repair Yours CAN$300.00
    BARD 8201-126

    BARD

    8201-126

    DISCONTINUED BY MANUFACTURER, LINE MONITOR, UNIVERSAL 3 PHASE INPUT, 190-600VAC, 18-30VAC CONTROL, RELAY / SPST OUTPUT, 10AMP, 50/60HZ, REPLACED BY 8201-174BX
    Buy Surplus As Low As CAN$193.35
    CAN$193.35
    ASEA BROWN BOVERI 1SVR730830R0400

    ASEA BROWN BOVERI

    1SVR730830R0400

    VOLTAGE MONITORING RELAY, 4 AMP, 24-240 VAC/DC, SCREW TYPE TERMINALS, 2 C/O SPDT CONTACTS, 10 MA / 24 V MINIMUM SWITCHING CAPACITY, -20 TO +60 DEGREE C, IP20/50, (CM-ESS.2S)
    CAN$996.68 Buy Surplus As Low As CAN$615.95
    CAN$615.95
    ASEA BROWN BOVERI 1SVR730840R0700

    ASEA BROWN BOVERI

    ABB ROBOTICS

    1SVR730840R0700

    (PRICE/EA) CM-SRS.M2S CURRENT MON. RELAY , 1SVR730840R0700
    CAN$649.82 Buy Surplus As Low As CAN$292.73
    CAN$292.73
    Repair Yours CAN$362.15
    ASEA BROWN BOVERI 1SVR730830R0500

    ASEA BROWN BOVERI

    1SVR730830R0500

    VOLTAGE MON. RELAY, ROHS COMPLIANT, CM-ESS.MS
    CAN$618.87 Buy Surplus As Low As CAN$307.98
    CAN$307.98
    Repair Yours CAN$362.15
    REER AU SX

    REER

    AU SX

    RELAIS TYPE 2 FOR ILION, ULISSE (RR400685)
    CAN$508.21 Buy Surplus As Low As CAN$304.93
    CAN$304.93
    Repair Yours CAN$362.15
    TIME MARK CORP 257BM

    TIME MARK CORP

    257BM

    RELAY, 3-PHASE MONITOR, 208/240VAC, SIZE 3.52IN X 2.44IN X 1.75IN, 8 PIN
    CAN$180.66 Buy Surplus As Low As CAN$84.09
    CAN$84.09
    Repair Yours CAN$300.00
    TIME MARK CORP 2601-120VAC

    TIME MARK CORP

    2601-120VAC

    UNDER-VOLTAGE MONITOR, 2601 SERIES, 120VAC VOLTAGE, FREQUENCY MONITOR, VOLTAGE SENSOR,
    CAN$238.13 Buy Surplus As Low As CAN$115.16
    CAN$115.16
    Repair Yours CAN$360.00
    SIEMENS 3RR2143-1AW30

    SIEMENS

    3RR2143-1AW30

    MONITORING RELAY, CAN BE MOUNTED TO CONTACTOR 3RT2, SIZE S2 BASIC, ANALOG ADJUSTMENT APPARENT CURRENT MONITORING 8...80 A, 50...60 HZ, 2-PHASE SUPPLY 24-240 V AC/DC 1 CHANGE-OVER CONTACT MON ...
    CAN$764.08 Buy Surplus As Low As CAN$351.28
    CAN$351.28
    Repair Yours CAN$360.00
    BEL FUSE YVD.V1C01.1

    BEL FUSE

    BEL POWER SOLUTION

    YVD.V1C01.1

    ARC FAULT DETECTOR
    Buy Surplus As Low As CAN$43.81
    CAN$43.81
    ASEA BROWN BOVERI 302B1017UL

    ASEA BROWN BOVERI

    302B1017UL

    GROUND FAULT SENSOR 10IN 17IN 600V
    CAN$465.23 Buy Surplus As Low As CAN$176.49
    CAN$176.49
    Repair Yours CAN$365.41
    STEVECO 90-3

    STEVECO

    90-3

    RELAY POTENTIALS
    Buy Surplus As Low As CAN$19.37
    CAN$19.37
    R-K ELECTRONICS TVM-400-20-0002

    R-K ELECTRONICS

    TVM-400-20-0002

    UNDER & OVER VOLTAGE 3 PHASE VOLTAGE MONITOR, UNDERVOLTAGE - OVER VOLTAGE - PHASE LOSS - PHASE ROTATION, ADJUSTABLE 410 TO 490VAC 3Ø, 10PCT, 2 SECOND PICK-UP & DROP-OUT DELAY, 8-PIN BASE, SO ...
    CAN$229.94 Buy Surplus As Low As CAN$123.45
    CAN$123.45
    Repair Yours CAN$300.00
    TE CONNECTIVITY 256-TTVU-MAHG-C6

    TE CONNECTIVITY

    CROMPTON INSTRUMENTS

    256-TTVU-MAHG-C6

    TRANSDUCER 4-20MA 5VDC 120V AUX
    CAN$318.87 Buy Surplus As Low As CAN$135.56
    CAN$135.56
    Repair Yours CAN$369.98
    THYTRONIC RMT/3

    THYTRONIC

    RMT/3

    DISCONTINUED BY MANUFACTURER, EARTH FAULT RELAY, 96X96MM, PANEL MOUNT
    Buy Surplus As Low As CAN$158.78
    CAN$158.78
    Repair Yours CAN$362.15
    ASEA BROWN BOVERI CM-PFS

    ASEA BROWN BOVERI

    CM-PFS

    DISCONTINUED BY MANUFACTURER, ASEA BROWN BOVERI, CM-PFS, CMPFS, MONITORING RELAY, 4AMP, 3PHASE, 50/60HZ, 200-500V
    Buy Surplus As Low As CAN$130.03
    CAN$130.03
    SCHNEIDER ELECTRIC GP-200BW

    SCHNEIDER ELECTRIC

    SQUARE D

    GP-200BW

    DISCONTINUED BY MANUFACTURER, RELAY, 600VAC, B-CURVE
    Buy Surplus As Low As CAN$383.48
    CAN$383.48
    Repair Yours CAN$369.66
    ASEA BROWN BOVERI 412N0195

    ASEA BROWN BOVERI

    412N0195

    ABB ABB CIRCUIT SHIELD RELAY TYPE 47H UNDERVOLTAGE PHASE SEQUENCE RELAY 24VDC
    CAN$1,329.83 Buy Surplus As Low As CAN$581.67
    CAN$581.67
    Repair Yours CAN$459.10
    MARSH BELLOFRAM CMU-120-ASE-5

    MARSH BELLOFRAM

    ATC DIVERSIFIED ELECTRONICS

    CMU-120-ASE-5

    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 ...
    CAN$713.00 Buy New CAN$713.00
    CAN$428.00
    Repair Yours CAN$356.00
    MARSH BELLOFRAM SLA-380-ASA

    MARSH BELLOFRAM

    ATC DIVERSIFIED ELECTRONICS

    SLA-380-ASA

    PHASE, MONITOR, RELAY, 5AMPS, 120VAC
    CAN$792.00 Buy New CAN$792.00
    CAN$476.00
    Repair Yours CAN$396.00
    MARSH BELLOFRAM SLA-120-ALE

    MARSH BELLOFRAM

    ATC DIVERSIFIED ELECTRONICS

    SLA-120-ALE

    PHASE MONITORING RELAY, 95-130 VAC, 10A, DPDT, SCREW TERMINAL, SLA SERIES
    CAN$903.00 Buy New CAN$903.00
    CAN$542.00
    Repair Yours CAN$450.00
    CR MAGNETICS CR4395-EL-24D-330-X-CD-ELR-I

    CR MAGNETICS

    CR4395-EL-24D-330-X-CD-ELR-I

    AC CURRENT SENSING RELAY, SOLID CORE INTERNAL CT, 50 - 400 HZ FREQ RANGE, 24 VDC +/- 10% POWER SUPPLY, UNDERCURRENT DETECTION, NON-LATCHING, NO TIME DELAY, 3 - 30 AAC ADJUSTABLE TRIP RANGE, ...
    CAN$139.79 Buy Surplus As Low As CAN$61.91
    CAN$61.91
    Repair Yours CAN$358.05
    CR MAGNETICS CR5395-EH-ACV-110-B-CD-ELR-I

    CR MAGNETICS

    CR5395-EH-ACV-110-B-CD-ELR-I

    DIRECT CURRENT SENSING RELAY, 85 - 265 VAC, 1.0 - 10 AMP, 1 N.O. / 1 N.C., 2 - 25 SECOND TIME DELAY, ENERGY HIGH TRIP STATUS, LED INDICATOR LIGHT
    CAN$247.61 Buy Surplus As Low As CAN$112.90
    CAN$112.90
    Repair Yours Contact Us
    ICM ICM492-LF

    ICM

    ICM492-LF

    SINGLE PHASE MONITOR, 80-300V
    CAN$197.91 Buy Surplus As Low As CAN$127.48
    CAN$127.48
    Repair Yours CAN$300.00
    NK TECHNOLOGIES AGL1-SDT1-120-DEN-005

    NK TECHNOLOGIES

    AGL1-SDT1-120-DEN-005

    AC GROUND FAULT SENSORS, AGL SERIES,RELAY OUTPUT,SOLID-CORE,120 - 120 VAC POWERED, FACTORY ADJUSTED SETPOINT, 5-100 MA, NORMALLY DE-ENERGIZED, BASE TERMINALS, SPDT 1 A @ 120 VAC, 2 A @ 30 VD ...
    CAN$841.77 Buy Surplus As Low As CAN$485.19
    CAN$485.19
    Repair Yours CAN$402.41
    NK TECHNOLOGIES AGL3-SDT1-24U-ENE-TR3-N

    NK TECHNOLOGIES

    AGL3-SDT1-24U-ENE-TR3-N

    GROUND FAULT SENSOR, JUMPER SELECT 5, 10 OR 30 MA SETPOINT, NORMALLY ENERGIZED, BASE TERMINALS, SPDT 1 A @ 120 VAC, 2 A @ 30 VDC, 24 VAC/VDC, BASE, SOLID-CORE
    CAN$899.75 Buy Surplus As Low As CAN$420.35
    CAN$420.35
    Repair Yours CAN$362.15
    ASEA BROWN BOVERI 424K2105

    ASEA BROWN BOVERI

    424K2105

    DISCONTINUED BY MANUFACTURER, SYNCHRONISM CHECK RELAY, 120 VAC, 50 / 60 HZ
    Buy Surplus As Low As CAN$94.95
    CAN$94.95
    Repair Yours CAN$369.66
    DOLD BA9055/140 AC230V 50-500IPM 1-20S

    DOLD

    BA9055/140 AC230V 50-500IPM 1-20S

    DISCONTINUED BY MANUFACTURER, SPEED MONITOR, 230VAC, 50-500 IPM, 1-20S STARTUP DELAY
    CAN$530.32 Buy Surplus As Low As CAN$127.02
    CAN$127.02
    Repair Yours CAN$362.15
    WESTINGHOUSE SVM2AC

    WESTINGHOUSE

    SVM2AC

    DISCONTINUED BY MANUFACTURER, VOLTAGE MONITOR, SVM SERIES, 2PHASE SYSTEM
    Buy Surplus As Low As CAN$411.56
    CAN$411.56
    Repair Yours CAN$369.98
    RHOMBERG AP430-525V-AC-S

    RHOMBERG

    AP430-525V-AC-S

    PHASE SEQUENCE/FAILURE/ASYMMETRY RELAY, 3 PHASE, 525 VAC, 50/60 HZ, A-LINE, SINGLE POLE
    CAN$336.87 Buy Surplus As Low As CAN$203.28
    CAN$203.28
    Repair Yours CAN$368.95
    NK TECHNOLOGIES AG3-NOR-120-NF-TR3

    NK TECHNOLOGIES

    AG3-NOR-120-NF-TR3

    GROUND FAULT SENSOR, 10MA, 30MA, 5MA, 120VAC, 30VDC, 2.0A, 120VAC, 0.5A
    CAN$311.55 Buy Surplus As Low As CAN$116.51
    CAN$116.51
    SCHNEIDER ELECTRIC LE5512TRVF

    SCHNEIDER ELECTRIC

    CLIPSAL

    LE5512TRVF

    RELAY,CLIPSAL, VOLTAGE FREE RELAY,C-BUS 2, 12 CHANNEL, 110VAC
    CAN$1,043.37 Buy Surplus As Low As CAN$456.37
    CAN$456.37
    Repair Yours CAN$358.81
    RADWELL VERIFIED SUBSTITUTE 201A-AU-SUB

    RADWELL VERIFIED SUBSTITUTE

    201A-AU-SUB

    SUBSTITUTE FOR SYCOM INC 201A-AU, PHASE MONITOR RELAY, 3-PHASE, 190-500 VAC, 8 PIN PLUG-IN 10 AMP SPDT RELAY, PHASE LOSS, REVERSAL - FIXED, UNBALANCE, OVER/UNDER VOLTAGE - ADJUSTABLE
    CAN$203.28 Buy New CAN$203.28
    Repair Yours CAN$370.89
    RADWELL VERIFIED SUBSTITUTE MODEL 21-SUB

    RADWELL VERIFIED SUBSTITUTE

    MODEL 21-SUB

    SUBSTITUTE FOR TIME MARK CORP MODEL 21, PHASE MONITOR RELAY, 3-PHASE, 190-500 VAC, 8 PIN PLUG-IN 10 AMP SPDT RELAY, PHASE LOSS, REVERSAL - FIXED, UNBALANCE, OVER/UNDER VOLTAGE - ADJUSTABLE
    CAN$188.76 Buy New CAN$188.76
    Repair Yours Contact Us
    RADWELL VERIFIED SUBSTITUTE SLU-0201-SUB

    RADWELL VERIFIED SUBSTITUTE

    SLU-0201-SUB

    SUBSTITUTE FOR MARSH BELLOFRAM SLU0201, PHASE MONITOR RELAY, 3-PHASE, 190-500 VAC, 8 PIN PLUG-IN 10 AMP SPDT RELAY, PHASE LOSS, REVERSAL - FIXED, UNBALANCE, OVER/UNDER VOLTAGE - ADJUSTABLE
    CAN$159.72 Buy New CAN$159.72
    Repair Yours Contact Us
    WESTINGHOUSE 1875269A

    WESTINGHOUSE

    1875269A

    UNDER VOLTAGE RELAY, 0.5-2.5A, 60HZ, 4-16AMP TRIP, TYPE C0-8
    CAN$472.55 Buy Surplus As Low As CAN$186.03
    CAN$186.03
    CONVERTEAM MVTU11K1CD0501G

    CONVERTEAM

    ALSTOM

    MVTU11K1CD0501G

    DISCONTINUED BY MANUFACTURER, VOLTAGE RELAY, UNDERVOLTAGE, DEFINITE TIME DELAY, 100-120 VAC RATED, 50/60 HZ RATED, 30-70 HZ OPERATING RANGE, 252 CONTINUOUS
    Buy Surplus As Low As CAN$547.37
    CAN$547.37
    Repair Yours CAN$398.56
    DOLD BA9065.20 3AC380-440V 0,5-10A

    DOLD

    BA9065.20 3AC380-440V 0,5-10A

    0039727, UNDERLOAD MONITOR (COS-PHI)
    CAN$413.28 Buy Surplus As Low As CAN$197.21
    CAN$197.21
    Repair Yours CAN$563.56
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