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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 841.
    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!
    CAN$781.00 Buy New CAN$781.00
    CAN$469.00
    Repair Yours CAN$390.00
    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!
    CAN$1,093.00 Buy New CAN$1,093.00
    CAN$831.00
    Repair Yours CAN$545.00
    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$889.00 Buy New CAN$889.00
    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$270.00 Buy New CAN$270.00
    CAN$153.00
    Repair Yours CAN$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!
    CAN$556.00 Buy New CAN$556.00
    CAN$316.00
    Repair Yours CAN$300.00
    GENERAL ELECTRIC 350-E-P5-G5-H-E-E-N-M-1E-D-N

    GENERAL ELECTRIC

    MULTILIN

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

    DISCONTINUED BY MANUFACTURER, FEEDER PROTENCTION SYSTEM, SERIES 3, 125-250VDC, 120-240VAC, 50/60HZ, 36VA
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$4,830.00
    CAN$4,830.00
    Repair Yours CAN$4,050.00
    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 PLM9405

    LITTELFUSE

    PLM9405

    PHASE RELAY, SPDT, 400-480V, SOCKET; PRODUCT RANGE:PLM SERIES; CONTACT CONFIGURATION:SPDT; CONTACT CURRENT:10A; RELAY MOUNTING:SOCKET; RELAY TERMINALS:QUICK CONNECT; SWITCHING VOLTAGE MAX:24 ...
    ✓ IN STOCK!
    CAN$374.65 Buy Surplus As Low As CAN$213.44
    CAN$213.44
    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
    NK TECHNOLOGIES AGT1-420-24L-FL

    NK TECHNOLOGIES

    AGT1-420-24L-FL

    AC GROUND FAULT TRANSDUCER SENSORS,AGT SERIES,SOLID-CORE, 24L - 24 VDC LOOP-POWERED, 0-50 MA RANGE, TOP TERMINALS, 4-20 MA
    ✓ IN STOCK!
    CAN$518.86 Buy Surplus As Low As CAN$313.52
    CAN$313.52
    Repair Yours CAN$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!
    CAN$721.00 Buy New CAN$721.00
    CAN$446.01
    Repair Yours CAN$371.00
    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!
    CAN$677.00 Buy New CAN$677.00
    CAN$407.00
    Repair Yours CAN$338.00
    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!
    CAN$656.00 Buy New CAN$656.00
    CAN$373.01
    Repair Yours CAN$310.00
    INGERSOLL RAND RLY3715

    INGERSOLL RAND

    TRANE

    RLY3715

    START RELAY, SPST 35 AMP, REPLACES RLY1097, HVAC PARTS, SAME AS 3ARR3-J4A4, B100201P06,RLY1097,RLY-01097,RLY3715
    ✓ IN STOCK!
    CAN$92.19 Buy Surplus As Low As CAN$49.63
    CAN$49.63
    Repair Yours CAN$300.00
    SIEMENS 3RQ3118-1AB00

    SIEMENS

    3RQ3118-1AB00

    OUTPUT COUPLER, WITH PLUG-IN RELAY, 1 CHANGE-OVER CONTACT SCREW TERMINAL, 6 AMP, 24 VAC/DC, 50/60 HZ, DIN RAIL MOUNT
    ✓ IN STOCK!
    CAN$77.00 Buy Surplus As Low As CAN$47.00
    CAN$47.00
    Repair Yours Contact Us
    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$653.00 Buy New CAN$653.00
    CAN$497.00
    Repair Yours CAN$326.00
    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$466.00 Buy New CAN$466.00
    CAN$280.00
    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$426.00 Buy New CAN$426.00
    CAN$324.00
    Repair Yours CAN$250.00
    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$285.00 Buy New CAN$285.00
    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$1,014.00 Buy New CAN$1,014.00
    CAN$588.00
    Repair Yours CAN$489.00
    MARSH BELLOFRAM SLD-380-ALE

    MARSH BELLOFRAM

    ATC DIVERSIFIED ELECTRONICS

    SLD-380-ALE

    PHASE MONITOR RELAY,
    ✓ IN STOCK!
    CAN$886.00 Buy New CAN$886.00
    CAN$674.00
    Repair Yours CAN$442.00
    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$512.00 Buy New CAN$512.00
    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$770.00 Buy New CAN$770.00
    CAN$509.00
    Repair Yours CAN$384.00
    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$201.00 Buy New CAN$201.00
    CAN$117.01
    Repair Yours CAN$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!
    CAN$1,086.00 Buy New CAN$1,086.00
    CAN$652.00
    Repair Yours CAN$542.00
    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$560.89 Buy Surplus As Low As CAN$190.60
    CAN$190.60
    Repair Yours CAN$568.05
    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$158.51
    CAN$158.51
    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$1,340.22 Buy Surplus As Low As CAN$687.53
    CAN$687.53
    Repair Yours CAN$575.09
    DOLD BA9065.20 3AC380-440V 0,5-10A

    DOLD

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

    0039727, UNDERLOAD MONITOR (COS-PHI)
    ✓ IN STOCK!
    CAN$426.04 Buy Surplus As Low As CAN$203.84
    CAN$203.84
    Repair Yours CAN$568.05
    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$1,204.27 Buy Surplus As Low As CAN$458.04
    CAN$458.04
    Repair Yours CAN$568.05
    CEE RAD7004

    CEE

    RAD7004

    DISCONTINUED BY MANUFACTURER, VOLTAGE RELAY, 110V
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$122.47
    CAN$122.47
    Repair Yours CAN$568.05
    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$286.98
    CAN$286.98
    Repair Yours CAN$378.70
    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$664.62 Buy Surplus As Low As CAN$390.06
    CAN$390.06
    Repair Yours CAN$378.70
    DOLD IK9173.11/030 DC24V 0,7-1,0UN4%

    DOLD

    IK9173.11/030 DC24V 0,7-1,0UN4%

    UNDERVOLTAGE RELAY, 1 PHASE, NOMINAL VOLTAGE: 24 VDC, TIME DELAY: 0.5-20 S, RESPONSE VALUE: 0.7 - 1 UN 4%
    ✓ IN STOCK!
    CAN$219.65 Buy Surplus As Low As CAN$123.40
    CAN$123.40
    Repair Yours CAN$568.05
    SIEMENS 3UG4983-2AA01

    SIEMENS

    3UG4983-2AA01

    VOLTAGE REDUCER MODULE FOR INSULATION MONITORING RELAY 3UG4583 FOR EXPANDING THE SUPPLY VOLTAGE RANGE TO 690 V AC AND 1000 V DC SPRING-LOADED TERMINAL (PUSH-IN)
    ✓ IN STOCK!
    CAN$3,097.80 Buy Surplus As Low As CAN$1,858.70
    CAN$1,858.70
    Repair Yours CAN$21,977.81
    SCHNEIDER ELECTRIC P122A00Z112CF0

    SCHNEIDER ELECTRIC

    P122A00Z112CF0

    DISCONTINUED BY MANUFACTURER, FAULT PROTECTION RELAY, 3 PHASE, 0.1-40 ION, OVERCURRENT AND EARTH, DIGITAL INPUT VOLTAGE: 24-250 VDC/24-240 VAC, AUXILIARY VOLTAGE: 24-250 VDC/48-240 VAC, COMM ...
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$1,554.39
    CAN$1,554.39
    Repair Yours CAN$863.66
    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$591.00 Buy New CAN$591.00
    CAN$450.00
    Repair Yours CAN$295.00
    BENDER CMS460-D-2

    BENDER

    CMS460-D-2

    DISCONTINUED BY MANUFACTURER, MULTI-CHANNEL GROUND FAULT MONITOR, UP TO 12 SEPARATE CHANNELS, TRIP VALUE IS ADJUSTABLE FROM 6 MA TO 20 A, 70-276 VAC (42-460 HZ), 70-276 VDC, FOR DC AND MIXED ...
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$1,992.44
    CAN$1,992.44
    Repair Yours CAN$1,653.73
    MEGACON KSQ331NA

    MEGACON

    KSQ331NA

    CHECK SYNCHRONISING RELAY, VOLTAGE DIFFERENTIAL MONITORING, 380-415V AC, 50/60HZ
    ✓ IN STOCK!
    CAN$662.29 Buy Surplus As Low As CAN$386.43
    CAN$386.43
    Repair Yours CAN$486.56
    SIEMENS 5SM6024-2

    SIEMENS

    5SM6024-2

    ARC FAULT DETECTION DEVICE BLOCK AFDD, 1-40 A 230 V FOR CB AND RCBO 1+N 2MW
    ✓ IN STOCK!
    CAN$2,347.91 Buy Surplus As Low As CAN$1,784.45
    CAN$1,784.45
    Repair Yours CAN$16,657.68
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