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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 701-750 of 838.
    MARSH BELLOFRAM CMO-120-ASE-5

    MARSH BELLOFRAM

    ATC DIVERSIFIED ELECTRONICS

    CMO-120-ASE-5

    OVERCURRENT MONITOR RELAY, AC, W/ MANUAL RESET, CMO MODEL, OUTPUT - 10 AMPS @ 120 V AC - RESISTIVE, DPDT, CONTROL VOLTAGE - 120 V AC/DC, 50/60 HZ, SURFACE MOUNT ENCLOSURE, CURRENT TRIP POINT ...
    ✓ IN STOCK!
    $771.31 Buy New $771.31
    $297.00
    Repair Yours $300.00
    MARSH BELLOFRAM CMO-120-ASE-20

    MARSH BELLOFRAM

    ATC DIVERSIFIED ELECTRONICS

    CMO-120-ASE-20

    OVERCURRENT MONITOR RELAY, AC, W/ MANUAL RESET, CMO MODEL, OUTPUT - 10 AMPS @ 120 V AC - RESISTIVE, DPDT, CONTROL VOLTAGE - 120 V AC/DC, 50/60 HZ, SURFACE MOUNT ENCLOSURE, CURRENT TRIP POINT ...
    ✓ IN STOCK!
    $569.10 Buy New $569.10
    $364.00
    Repair Yours $300.00
    MARSH BELLOFRAM CMO-120-ASA-10

    MARSH BELLOFRAM

    ATC DIVERSIFIED ELECTRONICS

    CMO-120-ASA-10

    OVERCURRENT MONITOR RELAY, AC, W/ MANUAL RESET, CMO MODEL, OUTPUT - 10 AMPS @ 120 V AC - RESISTIVE, DPDT, CONTROL VOLTAGE - 120 V AC/DC, 50/60 HZ, PLUG-IN ENCLOSURE, CURRENT TRIP POINTS - 2- ...
    ✓ IN STOCK!
    $610.98 Buy New $610.98
    $237.82
    Repair Yours $300.00
    ASEA BROWN BOVERI 715330-F80

    ASEA BROWN BOVERI

    715330-F80

    DISCONTINUED BY MANUFACTURER, CURRENT TRANSFORMER POWER SHIELD
    ✓ IN STOCK!
    Buy Surplus As Low As $170.65
    $170.65
    LITTELFUSE PLR380A

    LITTELFUSE

    PLR380A

    LINE MONITOR, 3 PHASE, SERIES: PLR, OCTAL 8-PIN PLUG-IN, 340-450 VAC, 5 AMP, 50/60 HZ, SPDT
    ✓ IN STOCK!
    $181.00 Buy Surplus As Low As $138.00
    $138.00
    Repair Yours $300.00
    GENERAL ELECTRIC IC2820-D300B10

    GENERAL ELECTRIC

    IC2820-D300B10

    DISCONTINUED BY MANUFACTURER, FIELD LOSS RELAY, 600 VAC MAX, 10 AMP
    ✓ IN STOCK!
    Buy Surplus As Low As $217.54
    $217.54
    Repair Yours $300.00
    LITTELFUSE 355400

    LITTELFUSE

    355400

    3-PHASE VOLT MON/ 380-480V/ AD/ BOX
    ✓ IN STOCK!
    $457.42 Buy Surplus As Low As $301.90
    $301.90
    Repair Yours $300.00
    LITTELFUSE 102A2

    LITTELFUSE

    102A2

    PHASE RELAY, SPDT, 190-480V, PANEL; PRODUCT RANGE:102A SERIES; CONTACT CONFIGURATION:SPDT; CONTACT CURRENT:10A; RELAY MOUNTING:PANEL MOUNT; RELAY TERMINALS:SCREW; SWITCHING VOLTAGE MAX:240VA ...
    ✓ IN STOCK!
    $264.18 Buy Surplus As Low As $167.54
    $167.54
    Repair Yours $300.00
    BENDER B91067120

    BENDER

    B91067120

    ISOMETER, ISO685-S-B, AC 0-690V; 1-460HZ / DC 0-1000V NOMINAL SYSTEM VOLTAGE, C 24-240 V; 50-400 HZ /DC 24-240V SUPPLY VOLTAGE
    ✓ IN STOCK!
    $293.33 Buy Surplus As Low As $275.00
    $275.00
    Repair Yours $300.00
    EATON CORPORATION D64RPB6

    EATON CORPORATION

    CUTLER HAMMER

    D64RPB6

    RELAY, GROUND FAULT, 10MA-6.4 AMP RANGE, 24-250 AC/DC
    ✓ IN STOCK!
    $33.16 Buy Surplus As Low As $5.35
    $5.35
    EATON CORPORATION C323PN12C6

    EATON CORPORATION

    CUTLER HAMMER

    C323PN12C6

    DISCONTINUED BY MANUFACTURER, RELAY / PHASE MONITOR, 440 V
    ✓ IN STOCK!
    Buy Surplus As Low As $463.13
    $463.13
    Repair Yours $450.10
    ASEA BROWN BOVERI 587C0427-61114

    ASEA BROWN BOVERI

    587C0427-61114

    DISCONTINUED BY MANUFACTURER, RELAY / DISTRIBUTION PROTECTION SYSTEM, INDUSTRIAL CONTROL EQUIPMENT, TYPE / DPU 2000R, PHASE / 0.4-12 AMP, GROUND / 0.4-12 AMP, 38-58 VDC, 60 HZ, 1-12 AMP, 70- ...
    ✓ IN STOCK!
    Buy Surplus As Low As $317.05
    $317.05
    Repair Yours $377.57
    GENERAL ELECTRIC IC2820-D300B3

    GENERAL ELECTRIC

    IC2820-D300B3

    DISCONTINUED BY MANUFACTURER, FIELD LOSS RELAY, 600 VAC MAX, 10 AMP
    ✓ IN STOCK!
    Buy Surplus As Low As $175.60
    $175.60
    Repair Yours $300.00
    MINILEC VSP-1

    MINILEC

    VSP-1

    DISCONTINUED BY MANUFACTURER, PREVENTER, SINGLE PHASE, 415 V
    ✓ IN STOCK!
    Buy Surplus As Low As $119.10
    $119.10
    Repair Yours $300.00
    WESTINGHOUSE 1256C13H01

    WESTINGHOUSE

    1256C13H01

    DISCONTINUED BY MANUFACTURER, CURRENT MONITOR, 5-1/2 INCH ID
    ✓ IN STOCK!
    Buy Surplus As Low As $46.12
    $46.12
    Repair Yours $300.00
    SCHWEITZER ENGINEERING SEL-TPR-3TPR31000IRJ6

    SCHWEITZER ENGINEERING

    SEL-TPR-3TPR31000IRJ6

    DISCONTINUED BY MANUFACTURER, UNDERGROUND TEST POINT RESET FAULT INDICATOR, DIRECT REPLACEMENT SEL-TPR-TPR#8BMJ
    ✓ IN STOCK!
    Buy Surplus As Low As $109.26
    $109.26
    Repair Yours $300.00
    EATON CORPORATION GFTCB245

    EATON CORPORATION

    GFTCB245

    BR TWO-POLE GROUND FAULT, 10KAIC, 45A, 60/75C WIRE, 120/240VAC, 60HZ, 5MA SENSITIVITY
    ✓ IN STOCK!
    $319.60 Buy Surplus As Low As $266.33
    $266.33
    ASCO 214B83-600VAC

    ASCO

    214B83-600VAC

    DISCONTINUED BY MANUFACTURER, OVER VOLTAGE MONITOR, AUTOMATIC SWITCH COMPANY, 3 V TRIP, 660 PHASE, 600 VAC, 50/60 HZ
    ✓ IN STOCK!
    Buy Surplus As Low As $357.08
    $357.08
    Repair Yours $455.77
    MOTOR PROTECTION ELEC. INC 004-120-118

    MOTOR PROTECTION ELEC. INC

    004-120-118

    STANDARD PLUG-IN VOLTAGE MONITOR, SPDT
    ✓ IN STOCK!
    Call For Availability
    GENERAL ELECTRIC CR120YC-20BA04B

    GENERAL ELECTRIC

    CR120YC-20BA04B

    DISCONTINUED BY MANUFACTURER, UNDERVOLTAGE RELAY, 460V 60HZ 1PH RATING, MAGNETIC CONTACT, SCREW TERMINAL
    ✓ IN STOCK!
    Buy Surplus As Low As $91.46
    $91.46
    Repair Yours $300.00
    GENERAL ELECTRIC CR120YC-01BA25C

    GENERAL ELECTRIC

    CR120YC-01BA25C

    DISCONTINUED BY MANUFACTURER, UNDERVOLTAGE RELAY, 600V 60HZ 1PH RATING, MAGNETIC CONTACT, SCREW TERMINAL
    ✓ IN STOCK!
    Buy Surplus As Low As $79.51
    $79.51
    Repair Yours $300.00
    PILZ ZF/F/10S/1UZ1SZFBM:470KOHM

    PILZ

    ZF/F/10S/1UZ1SZFBM:470KOHM

    RELAY, 24-60 VAC DC, 3,5 VA, 250 VAC, 5 AMPS, 1100 VA
    ✓ IN STOCK!
    $335.71 Buy Surplus As Low As $46.28
    $46.28
    Repair Yours $300.00
    NORTHERN DESIGN ELECTRONICS KWH CUBE

    NORTHERN DESIGN ELECTRONICS

    KWH CUBE

    ACTIVE ENERGY MONITOR, PANEL MOUNTED, 3 PHASE, 3/4 WIRE, 230V AC, 45-65 HZ, 5W, 1 PULSE OUTPUT, 8-DIGIT LCD WITH LED BACKLIGHT,
    ✓ IN STOCK!
    $313.00 Buy Surplus As Low As $207.00
    $207.00
    Repair Yours $300.00
    CROUZET DSR-24A

    CROUZET

    SYRELEC

    DSR-24A

    DISCONTINUED BY MANUFACTURER, UNDER VOLTAGE MONITOR, VOLTAE RATING: 24VAC, OUTPUT CURRENT: [SPDT] 10A, OUTPUT VOLTAGE: 240VAC, DIN-RAIL MOUNT
    ✓ IN STOCK!
    Buy Surplus As Low As $134.65
    $134.65
    Repair Yours $300.00
    CROUZET DUFR-380A/220A

    CROUZET

    SYRELEC

    DUFR-380A/220A

    DISCONTINUED BY MANUFACTURER, VOLTAGE RELAY, 3 PHASE, VOLTAGE RATING: 220/380VAC, OUTPUT: [SPDT] 10A, DESIGNATED LOW / HIGH THRESHOLD DIALS
    ✓ IN STOCK!
    Buy Surplus As Low As $165.43
    $165.43
    Repair Yours $300.00
    HONEYWELL R447A 1076

    HONEYWELL

    R447A 1076

    DISCONTINUED BY MANUFACTURER, SWITCHING RELAY, 2 WIRE, 240 V, DPST @ 16A/SPST @ 22A, FULL LOAD
    ✓ IN STOCK!
    Buy Surplus As Low As $24.75
    $24.75
    Repair Yours $300.00
    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 $475.57
    $475.57
    Repair Yours $566.34
    BASLER ELECTRIC BE1-59N-A5E-E1L-N0S1F

    BASLER ELECTRIC

    BE1-59N-A5E-E1L-N0S1F

    DISCONTINUED BY MANUFACTURER, GROUND FAULT OVERVOLTAGE RELAY, MODEL BE1-59N, SINGLE PHASE, INPUT 120VAC 50HZ, NOMINAL 1-20VAC PICKUP, OUTPUT 1NO RELAY OVER, TIMING OVER-DIFINITE 0.1-99.9SEC, ...
    ✓ IN STOCK!
    Buy Surplus As Low As $426.69
    $426.69
    Repair Yours $457.32
    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 $446.00
    $446.00
    Repair Yours $503.18
    ASEA BROWN BOVERI 609300K05

    ASEA BROWN BOVERI

    609300K05

    PHASE SENSOR, K3000 TO 4200, 3200 BREAKING RATING
    ✓ IN STOCK!
    $586.00 Buy Surplus As Low As $162.12
    $162.12
    Repair Yours $300.00
    ASEA BROWN BOVERI 609300K03

    ASEA BROWN BOVERI

    609300K03

    PHASE,SENSOR, 600A, K1600
    ✓ IN STOCK!
    $586.00 Buy Surplus As Low As $166.64
    $166.64
    INVENSYS FBM217

    INVENSYS

    FOXBORO

    FBM217

    DISCONTINUED BY MANUFACTURER, INPUT INTERFACE MODULE, DISCRETE, GROUP ISOLATED, 32 INPUT, VOLTAGE MONITOR
    ✓ IN STOCK!
    Buy Surplus As Low As $226.22
    $226.22
    Repair Yours $300.00
    WESTINGHOUSE 1875513A

    WESTINGHOUSE

    1875513A

    DISCONTINUED BY MANUFACTURER, VOLTAGE RELAY, VOLTS-240, HERTZ-60, 0.2-2-AMPS
    ✓ IN STOCK!
    Buy Surplus As Low As $111.73
    $111.73
    Repair Yours $300.00
    SCHNEIDER ELECTRIC MGFR-1-ZB

    SCHNEIDER ELECTRIC

    FEDERAL PIONEER

    MGFR-1-ZB

    120VAC CONTROL, 1-20 AMPS, 0-5 SECONDS DELAY.
    ✓ IN STOCK!
    $356.00 Buy Surplus As Low As $138.74
    $138.74
    Repair Yours $300.00
    SYMCOM 455-575

    SYMCOM

    455-575

    VOLTAGE MONITOR, 3-PHASE, 475-600V, 2-30 SECOND TRIP DELAY
    ✓ IN STOCK!
    $332.37 Buy Surplus As Low As $174.73
    $174.73
    Repair Yours $300.00
    AGM ELECTRONICS TA 5060-1

    AGM ELECTRONICS

    TA 5060-1

    SUPERVISORY TRANSMITTER, PLUG-IN, REPLACEMENT MODEL
    ✓ IN STOCK!
    $606.67 Buy Surplus As Low As $133.87
    $133.87
    Repair Yours $300.00
    ASEA BROWN BOVERI 1SVR730885R3300

    ASEA BROWN BOVERI

    1SVR730885R3300

    RMS MONITORING RELAY, MULTIFUNCTION, 4 AMP, 3 PHASE, 180-280 VAC, 2C/O SPDT, DIN-RAIL 22.5 MM, IP50/IP20, (CM-MPS.21S)
    ✓ IN STOCK!
    $445.20 Buy Surplus As Low As $356.11
    $356.11
    Repair Yours $300.00
    ASEA BROWN BOVERI 1SVR730884R4300

    ASEA BROWN BOVERI

    1SVR730884R4300

    RELAY, MULTIFUNCTIONAL, CM SERIES, 300-500 VAC, 50/60/400 HZ, 2 C/O (SPDT) OUTPUT, 250 V / 4 AMP RATED, ON/OFF TRIPPING DELAY, 3-PHASE, (CM-MPS.43S)
    ✓ IN STOCK!
    $561.33 Buy Surplus As Low As $331.09
    $331.09
    Repair Yours $300.00
    ASEA BROWN BOVERI 1SVR630736R1300

    ASEA BROWN BOVERI

    1SVR630736R1300

    CM-UFS.2 THREE-PH MONITOR RELAY
    ✓ IN STOCK!
    $449.00 Buy Surplus As Low As $211.41
    $211.41
    Repair Yours $300.00
    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)
    ✓ IN STOCK!
    $749.59 Buy Surplus As Low As $449.75
    $449.75
    ASEA BROWN BOVERI 1SVR730831R1400

    ASEA BROWN BOVERI

    ABB ROBOTICS

    1SVR730831R1400

    VOLTAGE MONITORING RELAY, CM-ESS.2S, SINGLE PHASE, 220-240 VAC, 3-600 VRMS, 2 C/O, TIME RANGE: 0 S OR 0.1-30 S TRIPPING DELAY (ON), SCREW TERMINALS, DIN RAIL MOUNTABLE
    ✓ IN STOCK!
    $487.00 Buy Surplus As Low As $293.00
    $293.00
    Repair Yours $300.00
    GRACE R-1A003

    GRACE

    GRACE ENGINEERED PRODUCTS

    R-1A003

    CHEKVOLT INTERFACES, SINGLE-POINT, SINGLE PHASE, INSTALLS IN A 1/2 HOLE, POLYCARBONATE CONSTRUCTION, UV OUTDOOR RATED SO YOU CAN MOUNT IT ANYWHERE, INTEGRAL 6 LEAD WIRE, UL TYPE 4, 4X, 12 RA ...
    ✓ IN STOCK!
    $299.97 Buy New $299.97
    $58.00
    Repair Yours $300.00
    ASEA BROWN BOVERI 1SVR730841R0500

    ASEA BROWN BOVERI

    ABB ROBOTICS

    1SVR730841R0500

    (PRICE/EA) CM-SRS.22S CURRENT MON. RELAY , 1SVR730841R0500
    ✓ IN STOCK!
    $364.35 Buy Surplus As Low As $183.83
    $183.83
    Repair Yours $300.00
    ASEA BROWN BOVERI JSBT3-115VAC

    ASEA BROWN BOVERI

    JOKAB SAFETY

    JSBT3-115VAC

    DISCONTINUED BY MANUFACTURER, SAFTEY RELAY 115VAC
    ✓ IN STOCK!
    Buy Surplus As Low As $114.94
    $114.94
    Repair Yours $300.00
    CARLO GAVAZZI SM125230500

    CARLO GAVAZZI

    SM125230500

    DISCONTINUED BY MANUFACTURER, VOLTAGE MONITORING RELAY, 230 VAC SUPPLY, 50-500 VAC/DC MEASURING RANGE, LED INDICATION
    ✓ IN STOCK!
    Buy Surplus As Low As $122.21
    $122.21
    Repair Yours $300.00
    TIME MARK CORP A2644

    TIME MARK CORP

    A2644

    CURRENT SENSOR, 3-PHASE MONITOR, 10A,120VAC, SIZE 6.06IN X 3.88IN X 2.52IN
    ✓ IN STOCK!
    $200.91 Buy New $200.91
    $119.83
    Repair Yours $300.00
    WESTINGHOUSE 5264C09H02

    WESTINGHOUSE

    5264C09H02

    DISCONTINUED BY MANUFACTURER, GROUNDGARD RELAY, 10 AMP, 250 VAC, 50/60 HZ, 125 VDC
    ✓ IN STOCK!
    Buy Surplus As Low As $141.34
    $141.34
    Repair Yours $689.21
    WESTINGHOUSE BE1-51-K1E-Z1O-A1N0F

    WESTINGHOUSE

    BE1-51-K1E-Z1O-A1N0F

    RELAY ELECTRIC GROUND FAULT OVERVOLTAGE PROTECTIVE
    ✓ IN STOCK!
    $525.00 Buy Surplus As Low As $186.34
    $186.34
    Repair Yours $300.00
    SIEMENS 3TH2040-0BW4

    SIEMENS

    3TH2040-0BW4

    DISCONTINUED BY MANUFACTURER, CONTACTOR RELAY, DC OPERATION, 4 NORMALLY OPEN, 48 VDC
    ✓ IN STOCK!
    Buy Surplus As Low As $85.00
    $85.00
    Repair Yours $300.00
    WESTINGHOUSE 774B470A12

    WESTINGHOUSE

    774B470A12

    DISCONTINUED BY MANUFACTURER, RELAY AUXILIARY 125VDC
    ✓ IN STOCK!
    Buy Surplus As Low As $182.16
    $182.16
    Repair Yours $367.34
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