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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.

    Rockwell Disclaimer: The product is used surplus. Radwell is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because Radwell is not an authorized distributor of this product, the Original Manufacturer’s warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, Radwell makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. Radwell also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. Radwell also makes no representations as to your right to install any such firmware on the product. Radwell will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.

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    Results 801-850 of 845.
    TELE CONTROLS E1PF480Y/277VSY01

    TELE CONTROLS

    E1PF480Y/277VSY01

    PHASE LOSS MONITOR, PHASE BALANCE, PHASE ROTATION, PHASE SEQUENCE 3-PH, 208-380V AC, 1 CO, SPDT RELAY OUTPUT, LED INDICATORS, ADJUSTABLE PHASE BALANCE
    ✓ IN STOCK!
    $84.74 Buy New $84.74
    $50.85
    Repair Yours $300.00
    DEIF RMV-112D-DELTA-220VAC-ND+ND-220VAC

    DEIF

    RMV-112D-DELTA-220VAC-ND+ND-220VAC

    PROTECTIVE VOLTAGE RELAY, RMV-112D, COUPLING: DELTA, MEASURING VOLTAGE: 220/127V, MODULE: 220V, SUPPLY: 220VAC, RELAY B: NORM. DEENERGIZED, RELAY C: NORM. DEENERGIZED, UNDERVOLTAGE: 80-100%, ...
    ✓ IN STOCK!
    $754.41 Buy Surplus As Low As $267.16
    $267.16
    Repair Yours $300.00
    ASCO 214B69-120VAC

    ASCO

    214B69-120VAC

    DISCONTINUED BY MANUFACTURER, UNDER VOLTAGE MONITOR, 120 V AC, 50/60 HZ, 114 V PICK UP, 102 V DROP OUT
    ✓ IN STOCK!
    Buy Surplus As Low As $92.75
    $92.75
    Repair Yours $300.00
    ASEA BROWN BOVERI CM-PVE

    ASEA BROWN BOVERI

    CM-PVE

    PHASE MONITORING RELAY, 4 AMP, 400 V, 3 KV, 1 NO, WITH NEUTRAL CONNECTION, POWERED BY MEASURING CIRCUIT, FOR MONITORING OF 1-3 PHASE OVER- AND UNDERVOLTAGE, (1SVR550870R9400)
    ✓ IN STOCK!
    $119.00 Buy Surplus As Low As $72.00
    $72.00
    SCHWEITZER ENGINEERING SEL-751A-751A51A0X0X71850000

    SCHWEITZER ENGINEERING

    SEL-751A-751A51A0X0X71850000

    DISCONTINUED BY MANUFACTURER, FEEDER PROTECTION RELAY, MODEL SEL-751A, 20 W / 40 VA, 110-250 V, 50/60 HZ
    ✓ IN STOCK!
    Buy Surplus As Low As $2,055.63
    $2,055.63
    Repair Yours $1,706.17
    ASEA BROWN BOVERI 411T4175-HF

    ASEA BROWN BOVERI

    411T4175-HF

    DISCONTINUED BY MANUFACTURER, RELAY, UNDERVOLTAGE PHASE SEQUENCE, 27N TYPE, CIRCUIT SHIELD, DEFINITE CURVE, 0-10 SECOND, 2-C, SINGLE PHASE, 60-110V TAP RANGE, 150V MAX, 50/60 HZ, CONTROL 48/ ...
    ✓ IN STOCK!
    Buy Surplus As Low As $385.00
    $385.00
    Repair Yours $319.55
    AREVA VAJHM53SF147D/M

    AREVA

    VAJHM53SF147D/M

    DISCONTINUED BY MANUFACTURER, TRIPPING RELAY, TYPE VAJ, 110 VDC
    ✓ IN STOCK!
    Buy Surplus As Low As $100.02
    $100.02
    MARSH BELLOFRAM SAL-575-ALE

    MARSH BELLOFRAM

    ATC DIVERSIFIED ELECTRONICS

    SAL-575-ALE

    DISCONTINUED BY MANUFACTURER, PHASE MONITOR, 575 V AC, 50/60 HZ, 3 A, 600 V AC RES. RATED CONTACTS, LED INDICATOR, SCREW CLAMP TERMINALS
    ✓ IN STOCK!
    Buy Surplus As Low As $161.56
    $161.56
    Repair Yours $300.00
    GENERAL ELECTRIC 12GCXG51A12A

    GENERAL ELECTRIC

    12GCXG51A12A

    DISCONTINUED BY MANUFACTURER, DISTANCE RELAY, 5 AMP, 60 CYCLE, 120 V
    ✓ IN STOCK!
    Buy Surplus As Low As $950.29
    $950.29
    Repair Yours $788.74
    GENERAL ELECTRIC 12HGA18L2A

    GENERAL ELECTRIC

    12HGA18L2A

    DISCONTINUED BY MANUFACTURER, VOLTAGE RELAY, 125 VDC
    ✓ IN STOCK!
    Buy Surplus As Low As $283.44
    $283.44
    Repair Yours $300.00
    TELE CONTROLS G2JM5AL20

    TELE CONTROLS

    G2JM5AL20

    CURRENT MONITORING RELAY, OVERLOAD, 3-PH, 5A AC/DC RANGE, MULTIFUNCTION, 2 CO, DPDT, LED INDICATORS, SUPPLY VOLTAGE VIA TR2 MODULES, FOR USE WITH 5A CURRENT TRANSFORMERS
    ✓ IN STOCK!
    $385.00 Buy New $385.00
    $255.00
    Repair Yours $300.00
    RADWELL VERIFIED SUBSTITUTE PLM6502-SUB

    RADWELL VERIFIED SUBSTITUTE

    PLM6502-SUB

    SUBSTITUTE FOR ASEA BROWN BOVERI SSAC PLM6502, PHASE MONITOR RELAY, 3-PHASE , PHASE LOSS, PHASE REVERSAL, UNDERVOLTAGE, 240VAC, 10A, SPDT
    ✓ IN STOCK!
    $114.00 Buy New $114.00
    ALLEN BRADLEY 809-B24

    ALLEN BRADLEY

    809-B24

    DISCONTINUED BY MANUFACTURER, CURRENT RELAY, INSTANTANEOUS TRIP, 210 AMP, 600 VAC, MOUNTABLE
    ✓ IN STOCK!
    Buy Surplus As Low As $2,124.19
    $2,124.19
    Repair Yours $1,855.87
    ALLEN BRADLEY 809-A20

    ALLEN BRADLEY

    809-A20

    INSTANTANEOUS TRIP CURRENT RELAY, 130AMP, NEMA OPEN, 1RP,
    ✓ IN STOCK!
    Buy Surplus As Low As $2,199.43
    $2,199.43
    SCHWEITZER ENGINEERING SEL-321-321124256HGB354

    SCHWEITZER ENGINEERING

    SEL-321-321124256HGB354

    RELAY, PHASE AND GROUND DISTANCE, DIRECTION OVERCURRENT RELAY, FAULT LOCATOR, ELECTROMECHANICAL, 4 ZONE
    ✓ IN STOCK!
    $4,006.80 Buy Surplus As Low As $1,266.24
    $1,266.24
    Repair Yours $1,167.75
    INVENSYS P0927AG

    INVENSYS

    FOXBORO

    P0927AG

    DISCONTINUED BY MANUFACTURER, CONTROL VOLTAGE MONITOR, I/O MONITOR, 32 X CHANNELS, 16 X DIGITAL INPUTS, 16 X DIGITAL OUTPUTS, OPERATING TEMPERATURE: -20 TO 70 C, RELATIVE HUMIDITY: 5 TO 95% ...
    ✓ IN STOCK!
    Buy Surplus As Low As $1,576.05
    $1,576.05
    Repair Yours $1,245.00
    BENDER RCM470LY

    BENDER

    RCM470LY

    DISCONTINUED BY MANUFACTURER, RESIDUAL CURRENT MONITOR, 230 VAC SUPPLY, 40-400 HZ, 0-10 SECOND RESPONSE DELAY +/- 20%, 180 OHM CIRCUIT RESISTANCE, -10 TO +55 DEGREE C OPERATING TEMPERATURE, ...
    ✓ IN STOCK!
    Buy Surplus As Low As $599.21
    $599.21
    Repair Yours $474.00
    SYMCOM 201-200-DPDT-60MS

    SYMCOM

    201-200-DPDT-60MS

    VOLTAGE MONIOR, 3-PHASE MOTOR PROTECTION, USED ON 120V OR 240V, 50/60HZ MOTORS TO PROTECT FROM DAMAGE CAUSED BY SINGLE PHASING, LOW VOLTAGE, PHASE REVERSAL, AND VOLTAGE UNBALANCE,
    ✓ IN STOCK!
    $93.79 Buy Surplus As Low As $51.97
    $51.97
    REGAL REXNORD 4 1/2F EB SLEEVE

    REGAL REXNORD

    KOP FLEX

    4 1/2F EB SLEEVE

    COUPLING SLEEVE, 4-1/2IN, 10BOLT, 505HP AT 100RPM, 318K IN LB TORQUE, FLANGE OD 13-5/8IN, , 4 1/2F EB SLEEVE
    ✓ IN STOCK!
    $4,083.00 Buy Surplus As Low As $2,058.07
    $2,058.07
    Repair Yours $1,304.00
    GENERAL ELECTRIC 12NLR21U1A

    GENERAL ELECTRIC

    12NLR21U1A

    DISCONTINUED BY MANUFACTURER, RECLOSING RELAY, 48-125 VDC
    ✓ IN STOCK!
    Buy Surplus As Low As $830.53
    $830.53
    Repair Yours $682.52
    MATSUSHITA ELECTRIC CM1A-R-12V

    MATSUSHITA ELECTRIC

    AROMAT

    CM1A-R-12V

    AUTOMOTIVE RELAY,CM RELAY(AUTOMO
    ✓ IN STOCK!
    $5.12 Buy Surplus As Low As $3.07
    $3.07
    Repair Yours $300.00
    OMRON K8AB-VW3-AC200/230

    OMRON

    K8AB-VW3-AC200/230

    VOLTAGE RELAY 6A 1PH 200/230VAC 5VA 50/60HZ
    ✓ IN STOCK!
    $125.43 Buy Surplus As Low As $33.56
    $33.56
    WESTINGHOUSE 289B432A15

    WESTINGHOUSE

    289B432A15

    DISCONTINUED BY MANUFACTURER, OVERCURRENT RELAY, 2-6 AMP, 1 PHASE, 60 HZ
    ✓ IN STOCK!
    Buy Surplus As Low As $190.81
    $190.81
    Repair Yours $300.00
    MEGACON KCG594A

    MEGACON

    KCG594A

    SYNCRONISATION CONTROLLER 24VDC 380/415VAC
    ✓ IN STOCK!
    Buy Surplus As Low As $132.45
    $132.45
    SAMWHA FKV-03

    SAMWHA

    FKV-03

    DISCONTINUED BY MANUFACTURER, PHASE FAILURE RELAY, 3 PHASE, 380 VAC, 50/60 HZ, CONTACT: 5 AMP 250 VAC (RESISTIVE)
    ✓ IN STOCK!
    $104.65 Buy Surplus As Low As $84.32
    $84.32
    NORTONICS FOXTAM LIMITED YWRPTC/400V

    NORTONICS FOXTAM LIMITED

    YWRPTC/400V

    DISCONTINUED BY MANUFACTURER, PHASE AND THERMISTOR RELAY, MONITORS LOSS OF PHASE, MONITORS PHASE SEQUENCE, MONITORS UP TO 6 THERMISTORS, 3 PHASE, 400 VAC, 50/60 HZ, 3 WIRE, SPCO+1NO, 10AMP/2 ...
    ✓ IN STOCK!
    Buy Surplus As Low As $62.75
    $62.75
    BENDER SUD487

    BENDER

    SUD487

    VOLTAGE RELAY, 230-400VAC, 50/60HZ, 12 VA, 10 KA, 3 LED'S (GREEN), IP00/IP30
    ✓ IN STOCK!
    $68.32 Buy Surplus As Low As $15.90
    $15.90
    MEGACON KCV234E

    MEGACON

    KCV234E

    SYNCRONISATION CONTROLLER 380/415VAC 50/60HZ
    ✓ IN STOCK!
    Buy Surplus As Low As $132.45
    $132.45
    DOLD IK9065.11*

    DOLD

    IK9065.11*

    MEASURING RELAYS - UNDERLOAD - 1 PHASE / 3 PHASE AUTO RESET
    ✓ IN STOCK!
    $142.00 Buy Surplus As Low As $34.55
    $34.55
    GENERIC KH/U-..-H BV923

    GENERIC

    KH/U-..-H BV923

    RELAY
    ✓ IN STOCK!
    $56.87 Buy Surplus As Low As $30.54
    $30.54
    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 $1,409.65
    $1,409.65
    Repair Yours $1,170.02
    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!
    $396.83 Buy Surplus As Low As $134.85
    $134.85
    Repair Yours $401.90
    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 $112.14
    $112.14
    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!
    $948.21 Buy Surplus As Low As $486.43
    $486.43
    Repair Yours $406.88
    DOLD BA9065.20 3AC380-440V 0,5-10A

    DOLD

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

    0039727, UNDERLOAD MONITOR (COS-PHI)
    ✓ IN STOCK!
    $301.42 Buy Surplus As Low As $144.21
    $144.21
    Repair Yours $401.90
    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!
    $852.02 Buy Surplus As Low As $324.06
    $324.06
    Repair Yours $401.90
    CEE RAD7004

    CEE

    RAD7004

    DISCONTINUED BY MANUFACTURER, VOLTAGE RELAY, 110V
    ✓ IN STOCK!
    Buy Surplus As Low As $86.65
    $86.65
    Repair Yours $401.90
    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!
    $470.22 Buy Surplus As Low As $275.97
    $275.97
    Repair Yours $267.93
    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!
    $155.40 Buy Surplus As Low As $87.31
    $87.31
    Repair Yours $401.90
    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!
    $1,597.22 Buy Surplus As Low As $1,213.91
    $1,213.91
    Repair Yours $795.43
    SIEMENS 5TT3075

    SIEMENS

    5TT3075

    DISCONTINUED BY MANUFACTURER, RELAY, N-TYPE AC 230V, 16A, 2CO
    ✓ IN STOCK!
    Buy Surplus As Low As $43.11
    $43.11
    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 $3,413.20
    $3,413.20
    Repair Yours $2,862.00
    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 $203.04
    $203.04
    Repair Yours $267.93
    MEGACON KSQ331NA

    MEGACON

    KSQ331NA

    CHECK SYNCHRONISING RELAY, VOLTAGE DIFFERENTIAL MONITORING, 380-415V AC, 50/60HZ
    ✓ IN STOCK!
    $466.13 Buy Surplus As Low As $271.97
    $271.97
    Repair Yours $342.45
    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!
    $2,107.36 Buy Surplus As Low As $1,264.43
    $1,264.43
    Repair Yours $1,049.47
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