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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 151-200 of 838.
    ENDRESS & HAUSER CM42-IAA101EAE00

    ENDRESS & HAUSER

    CM42-IAA101EAE00

    TRANSMITTER LIQUID ANALYSIS MULTIPARAMETER, LOOP-POWERED. WORLDWIDE APPROVALS, HAZARDOUS AREAS DEVELOPED ACCORDING TO IEC 61508, PH/ORP, CONDUCTIVITY,OXYGEN (DO) DIGITAL SENSORS, MEMOSENS PR ...
    ✓ IN STOCK!
    $5,841.84 Buy Surplus As Low As $3,856.18
    $3,856.18
    Repair Yours $2,798.00
    ASEA BROWN BOVERI RK-626-430-AB

    ASEA BROWN BOVERI

    RK-626-430-AB

    DIFFERENTIAL RELAY TRANSFORMER, 5AMP,
    ✓ IN STOCK!
    Buy Surplus As Low As $950.00
    $950.00
    SIEMENS 3UF7111-1AA01-0

    SIEMENS

    3UF7111-1AA01-0

    CURRENT/VOLTAGE MEASURING MODULE, 3-40 AMP, 690 VAC, 50/60 HZ, 6KV, STRAIGHT THROUGH TRANSFORMER, SCREW TYPE TERMINAL, IP20
    ✓ IN STOCK!
    $784.00 Buy Surplus As Low As $596.00
    $596.00
    Repair Yours $439.00
    GENERAL ELECTRIC 12SFC151D3A

    GENERAL ELECTRIC

    12SFC151D3A

    OBSOLETE, RELAY STATIC TIME OVERCURRENT 50/60HZ
    ✓ IN STOCK!
    Buy Surplus As Low As $775.48
    $775.48
    Repair Yours $752.80
    GENERAL ELECTRIC 12IFC77AD1A

    GENERAL ELECTRIC

    12IFC77AD1A

    DISCONTINUED BY MANUFACTURER, OBSOLETE, RELAY OVERCURRENT EXTREMELY INVERSE
    ✓ IN STOCK!
    Buy Surplus As Low As $864.99
    $864.99
    Repair Yours $839.70
    SCHWEITZER ENGINEERING SEL-221G-221G05-4256MHGB

    SCHWEITZER ENGINEERING

    SEL-221G-221G05-4256MHGB

    DISCONTINUED BY MANUFACTURER, PHASE/GROUND DISTANCE RELAY, POWER SUPPY 125VAC/DC 14W, LOGIC INPUT 125VDC
    ✓ IN STOCK!
    Buy Surplus As Low As $1,616.24
    $1,616.24
    Repair Yours $1,524.41
    WESTRONICS INC SBAG-202

    WESTRONICS INC

    SBAG-202

    DISCONTINUED BY MANUFACTURER, GROUNDING RESISTANCE MONITOR, LOW INSULATION, W/ ALARM, 220VAC, 50/60HZ, REPLACEMENT: SBAG-202(N)
    ✓ IN STOCK!
    Buy Surplus As Low As $858.31
    $858.31
    Repair Yours $698.43
    EATON CORPORATION GFR60EI

    EATON CORPORATION

    CUTLER HAMMER

    GFR60EI

    (PRICE/EA) TYPE GFR RELAY, 5-60A RATING, ELECTRICAL RESET, WITH ZONE
    ✓ IN STOCK!
    $6,082.00 Buy Surplus As Low As $3,650.00
    $3,650.00
    Repair Yours $3,030.00
    EATON CORPORATION GFR60E

    EATON CORPORATION

    CUTLER HAMMER

    GFR60E

    (PRICE/EA) TYPE GFR RELAY, 5-60A RATING, ELECTRICAL RESET, NO ZONE
    ✓ IN STOCK!
    $5,436.00 Buy Surplus As Low As $3,305.60
    $3,305.60
    Repair Yours $1,914.65
    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 $1,154.01
    $1,154.01
    Repair Yours $550.00
    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 $2,937.68
    $2,937.68
    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
    GENERAL ELECTRIC 12JBC53L3A

    GENERAL ELECTRIC

    12JBC53L3A

    DISCONTINUED BY MANUFACTURER, RELAY / PHASE DIRECTIONAL OVERCURRENT, TYPE JBC, 120 V, 60 CYCLES, INVERSE TIME OVERCURRENT 1.5/6 AMP, INSTANTANEOUS OVERCURRENT 4-16 AMP, DIRECTIONAL PICK-UP 2 ...
    ✓ IN STOCK!
    Buy Surplus As Low As $736.14
    $736.14
    Repair Yours $718.82
    SCHWEITZER ENGINEERING SEL-710-071001A0X0X0X850001

    SCHWEITZER ENGINEERING

    SEL-710-071001A0X0X0X850001

    MOTOR PROTECTION RELAY, SEL-710 SERIES, PROGRAMMABLE, 32 CUSTOM DISPLAY LABELS, 2 16 CHARACTER LCD, PROTECTION FOR OVERCURRENT / THERMAL OVERLOAD / UNDERCURRENT CURRENT UNBALANCE / CURRENT D ...
    ✓ IN STOCK!
    $6,013.70 Buy Surplus As Low As $2,456.38
    $2,456.38
    Repair Yours $2,316.81
    BENDER IRDH275B-427

    BENDER

    IRDH275B-427

    DISCONTINUED BY MANUFACTURER, INSULATION MONITORING DEVICE
    ✓ IN STOCK!
    Buy Surplus As Low As $3,090.60
    $3,090.60
    Repair Yours $2,490.00
    WESTINGHOUSE 1344D82A22C

    WESTINGHOUSE

    1344D82A22C

    DISCONTINUED BY MANUFACTURER, FREQUENCY RELAY, TYPE MDF-2, 110/120 VAC, 50/60 HZ, 125 VDC,
    ✓ IN STOCK!
    Buy Surplus As Low As $1,254.80
    $1,254.80
    Repair Yours $1,225.27
    MEGACON KCG598E 380-415V/220-240V/150-300V/3R/6O

    MEGACON

    KCG598E 380-415V/220-240V/150-300V/3R/6O

    LOSS OF MAINS PROTECTION RELAY, THREE PHASE, 4-WIRE, AUXILIARY VOLTAGE: 380-415 VAC (50/60 HZ), INPUT 1: 220-240 V, RANGE: 150-300 V, OUTPUT 1: 3 RELAY, OUTPUT 2: 6 OPTO, IP21
    ✓ IN STOCK!
    $1,621.00 Buy Surplus As Low As $1,232.00
    $1,232.00
    Repair Yours $808.00
    EATON CORPORATION C323PN12C6

    EATON CORPORATION

    CUTLER HAMMER

    C323PN12C6

    DISCONTINUED BY MANUFACTURER, RELAY / PHASE MONITOR, 440 V
    ✓ IN STOCK!
    Buy Surplus As Low As $544.86
    $544.86
    Repair Yours $450.10
    GENERAL ELECTRIC 12CEY51A2D

    GENERAL ELECTRIC

    12CEY51A2D

    DISCONTINUED BY MANUFACTURER, DISTANCE RELAY, CEY TYPE, MHO, 5 AMP, 120 V, 0.2 / 2.0 TARGET SEAL IN AMP, 0.75-30 UNIT, 60 ANGLE SETTING
    ✓ IN STOCK!
    Buy Surplus As Low As $772.00
    $772.00
    Repair Yours $752.80
    BASLER ELECTRIC BE1-59-A4E-E1C-A0N0F

    BASLER ELECTRIC

    BE1-59-A4E-E1C-A0N0F

    DISCONTINUED BY MANUFACTURER, OVER VOLTAGE RELAY, INTERNALLY OPERATED, DEFINITE, SINGLE PHASE, 110-320 VAC PICKUP, SEMI-FLUSH MOUNTING
    ✓ IN STOCK!
    Buy Surplus As Low As $540.42
    $540.42
    Repair Yours $566.34
    GMC INSTRUMENTS U1389-V016

    GMC INSTRUMENTS

    GOSSEN METRAWATT

    U1389-V016

    ENERGY METER, FOR 4 WIRE SYSTEM, 0.01-1 (6) AMP, 3 X 230/400 V, PROGRAMMABLE PULSE RATE: 1-10000 KWH'S/PULSES (V2), LON BUS CONNECTION (W1), CURRENT/VOLTAGE PROGRAMMABLE (Q1)
    ✓ IN STOCK!
    $852.00 Buy Surplus As Low As $512.00
    $512.00
    Repair Yours $425.00
    ENDRESS & HAUSER TMT142-C2131JBKA1

    ENDRESS & HAUSER

    TMT142-C2131JBKA1

    DISCONTINUED BY MANUFACTURER, VOLTAGE/ PHASE MONITOR, 11-30 VDC, 4-20 MA
    ✓ IN STOCK!
    Buy Surplus As Low As $506.82
    $506.82
    Repair Yours $503.18
    SCHNEIDER ELECTRIC P122A00Z112EB0

    SCHNEIDER ELECTRIC

    P122A00Z112EB0

    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 $924.00
    $924.00
    Repair Yours $698.00
    WESTINGHOUSE 671B366A11A

    WESTINGHOUSE

    671B366A11A

    DISCONTINUED BY MANUFACTURER, MECHANICAL PROTECTIVE RELAY, INDICATOR-0.2-2AMPS, 120-VOLTS, 48-250-VOLTS, 60-HERTZ
    ✓ IN STOCK!
    Buy Surplus As Low As $678.14
    $678.14
    Repair Yours $536.38
    WESTINGHOUSE 718B784A25

    WESTINGHOUSE

    718B784A25

    DISCONTINUED BY MANUFACTURER, MECHANICAL PROTECTIVE RELAY, VOLTS-125, LOCKOUT INDICATOR, 20 INCHES X 7 INCHES X 8 INCHES
    ✓ IN STOCK!
    Buy Surplus As Low As $740.88
    $740.88
    Repair Yours $616.83
    ASEA BROWN BOVERI FCX-103B/1

    ASEA BROWN BOVERI

    BBC METRAWATT

    FCX-103B/1

    RELAY FREQUENCY 110/110/200/220V 65/391HZ
    ✓ IN STOCK!
    Buy Surplus As Low As $810.00
    $810.00
    Repair Yours $680.00
    GENERAL ELECTRIC 12SBC23B1D

    GENERAL ELECTRIC

    12SBC23B1D

    DISCONTINUED BY MANUFACTURER, STATIC BREAKER BACKUP RELAY, SBC TYPE, 125 VDC, 10 AMPS, 60 HZ
    ✓ IN STOCK!
    Buy Surplus As Low As $1,640.00
    $1,640.00
    Repair Yours $1,361.20
    GENERAL ELECTRIC 12CEY52A1D

    GENERAL ELECTRIC

    12CEY52A1D

    DISCONTINUED BY MANUFACTURER, DISTANCE RELAY, 120 V, 5 AMP, 60 CYCLE, 1.3 OHM
    ✓ IN STOCK!
    Buy Surplus As Low As $820.00
    $820.00
    Repair Yours $680.60
    SIEMENS 3UG49831A

    SIEMENS

    3UG49831A

    COUPLING UNIT F. 3UG4583 690VAC/1000VDC, UPSTREAM MODULE FOR INSULATION MONITORING RELAY 3UG4583 TO EXPAND THE SUPPLY VOLTAGE RANGE TO 690 V AC AND 1000 V DC SCREW TERMINAL
    ✓ IN STOCK!
    Buy Surplus As Low As $665.28
    $665.28
    Repair Yours $503.00
    SIEMENS 3UG45831CW30

    SIEMENS

    3UG45831CW30

    (PRICE/PC) MON. RELAY, INSULATION, 24-240 VAC/DC, CONTROLS - MONITORING 3UG3 , 3UG45831CW30
    ✓ IN STOCK!
    Buy Surplus As Low As $1,221.00
    $1,221.00
    Repair Yours $922.00
    SCHWEITZER ENGINEERING SEL-311C-0311C01H242542X

    SCHWEITZER ENGINEERING

    SEL-311C-0311C01H242542X

    DISCONTINUED BY MANUFACTURER, PROTECTION AND AUTOMATION SYSTEM, SEL-311C, LOGIC INPUT / 5 PHASE / 5 POLE / 125 VDC / 150 VAC WYE, POWER SUPPLY / 25 W / 85-350 VDC / 85-364 VAC / 125-250 VDC ...
    ✓ IN STOCK!
    Buy Surplus As Low As $828.00
    $828.00
    Repair Yours $1,981.81
    ASEA BROWN BOVERI 289B423A11

    ASEA BROWN BOVERI

    289B423A11

    DISCONTINUED BY MANUFACTURER, RELAY, DIRECTIONAL OVERCURRENT, CR-2 TYPE, 4-12 AMP-OVERCURRENT UNIT / 0.2-2 AMP-INDICATOR, 120 V
    ✓ IN STOCK!
    Buy Surplus As Low As $1,513.96
    $1,513.96
    Repair Yours $1,182.67
    WESTINGHOUSE 293B285A11

    WESTINGHOUSE

    293B285A11

    DISCONTINUED BY MANUFACTURER, RELAY, SYNCHRO-VERIFIED, TYPE CVE, 120 V, 60 HZ
    ✓ IN STOCK!
    Buy Surplus As Low As $610.33
    $610.33
    Repair Yours $482.73
    SIEMENS 3UG5461-1AA40

    SIEMENS

    3UG5461-1AA40

    DC LOAD MONITORING RELAY FOR PROFINET, MAX. 2X8 A / 1X16 A DC, MAX. 800 V WIDTH: 22.5 MM MONITORING FOR VIOLATION OF UPPER AND LOWER LIMIT OF CURRENT, VOLTAGE AND POWER; ENERGY CONSUMPTION C ...
    ✓ IN STOCK!
    $1,460.00 Buy Surplus As Low As $619.92
    $619.92
    Repair Yours $571.70
    SCHWEITZER ENGINEERING SEL-311C-0311C00H24254X1

    SCHWEITZER ENGINEERING

    SEL-311C-0311C00H24254X1

    DISCONTINUED BY MANUFACTURER, TRANSMISSION PROTECTION SYSTEM, LOGIC INPUT: 150 WYE / 125 VAC / 5 PHASE / 5N, POWER SUPPLY: 25 W / 125-250 / 120-230 V / 50/60 HZ
    ✓ IN STOCK!
    Buy Surplus As Low As $6,336.00
    $6,336.00
    Repair Yours $5,259.00
    BENDER B91067210W

    BENDER

    B91067210W

    DISCONTINUED BY MANUFACTURER, INSULATION MONITORING DEVICE, HIGH-PERFORMANCE, ISOMETER AND DISPLAY BUNDLE, 24-240 V, 50-400 HZ, SHOCK RESISTANT, 0-20 MA OUTPUTS
    ✓ IN STOCK!
    Buy Surplus As Low As $3,800.00
    $3,800.00
    Repair Yours $2,490.00
    SCHWEITZER ENGINEERING SEL-710-071050E1ADD9XDD85A2C1

    SCHWEITZER ENGINEERING

    SEL-710-071050E1ADD9XDD85A2C1

    DISCONTINUED BY MANUFACTURER, MOTOR PROTECTION RELAY, SUPPLY RANGE:, 110-250 VDC, 110-240 VAC, 50/60HZ, POWER CONSUMPTION:, 50VA/25W
    ✓ IN STOCK!
    Buy Surplus As Low As $7,200.00
    $7,200.00
    Repair Yours $5,976.00
    CEE TTGB 7031

    CEE

    TTGB 7031

    RELAY, 110-120 V
    ✓ IN STOCK!
    $7,717.00 Buy Surplus As Low As $4,631.00
    $4,631.00
    Repair Yours $3,844.00
    EATON CORPORATION 6A00160140

    EATON CORPORATION

    COOPER POWER

    6A00160140

    DISCONTINUED BY MANUFACTURER, RECLOSER CONTROL UNIT, SERIES KYLE F6/FORM 6
    ✓ IN STOCK!
    Buy Surplus As Low As $2,400.00
    $2,400.00
    Repair Yours $1,992.00
    CEE DTM 7031

    CEE

    DTM 7031

    DISCONTINUED BY MANUFACTURER, PROTECTION RELAY, 7000 SERIES, 5 AMP, 110 V, 50/60 HZ, SUGGESTED REPLACEMENT DTM 7033
    ✓ IN STOCK!
    Buy Surplus As Low As $730.76
    $730.76
    Repair Yours $606.53
    SCHWEITZER ENGINEERING SEL-351A-0351A00324554X1

    SCHWEITZER ENGINEERING

    SEL-351A-0351A00324554X1

    DISCONTINED BY MANUFACTURER, PROTECTION SYSTEM, SEL-351, DIRECTIONAL OVERCURRENT RELAY, RECLOSING RELAY, FAULT LOCATOR, SELOGIC CONTROL EQUATIONS, POWER SUPPLY RATING:38-200 VDC, 85-140 VAC, ...
    ✓ IN STOCK!
    Buy Surplus As Low As $1,817.53
    $1,817.53
    Repair Yours $1,418.04
    GENERAL ELECTRIC 350-E-P5-G5-H-E-S-C-P-1E-D-N

    GENERAL ELECTRIC

    MULTILIN

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

    DISCONTINUED BY MANUFACTURER, FEEDER PROTECTION, LCD, 5 AMP, 3 PHASE, 120-240 VAC / 125-250 VDC, STANDARD FACEPLATE, VOLTAGE PROTECTION, ENGLISH
    ✓ IN STOCK!
    Buy Surplus As Low As $2,117.02
    $2,117.02
    Repair Yours $2,218.59
    CONVERTEAM MVAJ13D1GB0780A

    CONVERTEAM

    ALSTOM

    MVAJ13D1GB0780A

    DISCONTINUED BY MANUFACTURER, TRIPPING AND CONTROL RELAYS, AC/DC OPERATION, LOW BURDEN, CONTACT MECHANISM: HR, CUTT-OFF: INSTANTANEOUS
    ✓ IN STOCK!
    Buy Surplus As Low As $600.00
    $600.00
    Repair Yours $498.00
    BENDER RCMS460-D-2

    BENDER

    RCMS460-D-2

    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 AC/DC SYSTEMS, B94053002
    ✓ IN STOCK!
    $4,070.00 Buy Surplus As Low As $965.00
    $965.00
    Repair Yours $836.01
    ASEA BROWN BOVERI 64418ZA

    ASEA BROWN BOVERI

    BALDOR RELIANCE

    64418ZA

    RELAY 300VDC/1AMP
    ✓ IN STOCK!
    $2,836.80 Buy New $2,836.80
    $1,001.95
    Repair Yours $1,029.87
    ASEA BROWN BOVERI 64418-1X

    ASEA BROWN BOVERI

    BALDOR RELIANCE

    64418-1X

    RELAY, 1 AMP, 300 VDC
    ✓ IN STOCK!
    $1,558.00 Buy New $1,558.00
    $630.91
    Repair Yours $612.47
    MARSH BELLOFRAM PBD-120-ALE

    MARSH BELLOFRAM

    ATC DIVERSIFIED ELECTRONICS

    PBD-120-ALE

    PHASE SEQUENCE AND VOLTAGE MONITOR, SERIES PBD, NO OF PHASES3, VOLTAGE SUPPORTED 120 VOLTS, HI PWR (OVER VLTG) TRIP , LO PWR (UNDER VLTG) TRIP, TYPE OF DISPLAY LED STATUS INDICATOR
    ✓ IN STOCK!
    $873.12 Buy New $873.12
    $576.30
    Repair Yours $427.00
    GENERAL ELECTRIC NGV13B29A

    GENERAL ELECTRIC

    NGV13B29A

    AC UNDER VOLTAGE RELAY, TYPE NGV, 120V/50-60HZ, 80-120V DROPOUT CALIBRATION, 2.0 AMP
    ✓ IN STOCK!
    $2,317.50 Buy Surplus As Low As $861.63
    $861.63
    Repair Yours $841.35
    CEE TTG 7114

    CEE

    TTG 7114

    DISPLACEMENT RELAY / NEUTRAL VOLTAGE, 7000 SERIES, DEFINITE TIME, TIME DELAY RANGE / 1-10 SECOND, AUXILIARY SUPPLY / 220 V MAX, 1-5 AMP, SINGLE PHASE ONLY, 100-110 V, 50/60 HZ, ANSI CODE 59N ...
    ✓ IN STOCK!
    $1,994.27 Buy Surplus As Low As $529.08
    $529.08
    Repair Yours $607.80
    SIEMENS 7XT3400-0CA00

    SIEMENS

    7XT3400-0CA00

    20 HZ BANDPASS FOR STATOR EARTH FAULT 100% PROTECTION THE 20HZ BANDPASS FILTERS THE SQUARE-WAVE VOLTAGE AND TRANS- FORMS IT TO SINUS CURVES WITH FREQUENCIES OF APPROX. 20HZ. THE INTERNAL RES ...
    ✓ IN STOCK!
    $7,038.88 Buy Surplus As Low As $3,576.67
    $3,576.67
    Repair Yours $3,473.30
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