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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 251-300 of 838.
    SIEMENS 3RH1140-2BB40

    SIEMENS

    FURNAS ELECTRIC CO

    3RH1140-2BB40

    DISCONTINUED BY MANUFACTURER, RELAY CONTROL, 6AMP, 24VDC, 4NO W/CAGE CLAMP TERMINAL, SUCCESSOR 3RH2140-2BB40
    ✓ IN STOCK!
    Buy Surplus As Low As $172.95
    $172.95
    Repair Yours $300.00
    TIME MARK CORP C269

    TIME MARK CORP

    C269

    PHASE MONITOR, OVER/UNDER FUNCTION, SOLID STATE, ELECTROMECHANICAL, 3 PHASE, 10 AMP @ 240 VAC, 480 VAC SUPPLY VOLTAGE, SPDT CONTACT, SCREW TERMINATION, PANEL MOUNT
    ✓ IN STOCK!
    $231.80 Buy New $231.80
    $117.78
    Repair Yours $300.00
    GENERAL ELECTRIC 12PJG-11F-6A

    GENERAL ELECTRIC

    MULTILIN

    12PJG-11F-6A

    DISCONTINUED BY MANUFACTURER, GROUND DETECTOR RELAY, TYPE PJG, 120-240 V, 50/60 HZ
    ✓ IN STOCK!
    Buy Surplus As Low As $333.00
    $333.00
    Repair Yours $388.17
    WESTINGHOUSE 177C522G14

    WESTINGHOUSE

    177C522G14

    CURRENT MONITOR
    ✓ IN STOCK!
    Buy Surplus As Low As $59.44
    $59.44
    SIEMENS 3TX7130-0DS13

    SIEMENS

    3TX7130-0DS13

    AC/DC OPERATED. PILOT LIGHT IN CONTACT. CONTACT CONFIGURATION DPDT. CONTACT VOLTAGE 277 VDC. CONTACT CURRENT 30 AMPERE. 3TX71 MODEL, OPEN POWER RELAY HEAVY DUTY DPDT, 40A, 277VAC OPTIONAL ME ...
    ✓ IN STOCK!
    $101.00 Buy Surplus As Low As $65.00
    $65.00
    Repair Yours $300.00
    GENERAL ELECTRIC 12IFC53B2A

    GENERAL ELECTRIC

    12IFC53B2A

    OVERCURRENT RELAY, INVERSE TIME, 2-50AMP
    ✓ IN STOCK!
    $627.20 Buy Surplus As Low As $166.32
    $166.32
    Repair Yours $300.00
    SYMCOM 460

    SYMCOM

    460

    THREE PHASE ELECTRIC MOTOR PROTECTOR, MOTOR SAVER, 190-480VAC, 50-60HZ, UNBALANCING TRIP: 2-8% ADJUSTABLE, TRIP DELAY: 1-30 SECONDS ADJUSTABLE, RESTART DELAY TIME AFTER A FAULT OR COMPLETE P ...
    ✓ IN STOCK!
    $207.06 Buy Surplus As Low As $119.34
    $119.34
    GENERAL ELECTRIC 12PJC11AV1A

    GENERAL ELECTRIC

    12PJC11AV1A

    DISCONTINUED BY MANUFACTURER, INSTANTANEOUS CURRENT RELAY, 1.5 AMP, DC/25/60 CY, TYPE PJC
    ✓ IN STOCK!
    Buy Surplus As Low As $251.98
    $251.98
    Repair Yours $300.00
    SIEMENS 3RR2241-1FW30

    SIEMENS

    FURNAS ELECTRIC CO

    3RR2241-1FW30

    MONITORING RELAY, 3 PHASE, 1 CHANGE-OVER CONTACT, 1 SEMICONDUCTOR OUTPUT, 1.6-16 AMP, 24-240 VAC/DC, 20-400 HZ, NOISE PULSE SUPPRESSION 0-30 S, PAUSE AFTER FAULT 0-300 MIN, SCREW CONNECTION ...
    ✓ IN STOCK!
    $620.00 Buy Surplus As Low As $372.00
    $372.00
    Repair Yours $309.00
    SIEMENS 3RR2141-1AW30

    SIEMENS

    3RR2141-1AW30

    MONITORING RELAY, 1.6-16 AMP, 2 PHASE, 24-240 VAC/DC, 20-400 HZ, SIZE: S00, SCREW CONNECTION, CAN BE MOUNTED TO CONTACTOR 3RT2
    ✓ IN STOCK!
    $334.00 Buy Surplus As Low As $221.00
    $221.00
    Repair Yours $200.00
    GENERAL ELECTRIC IC2820A100BB

    GENERAL ELECTRIC

    IC2820A100BB

    DISCONTINUED BY MANUFACTURER, RELAY, 1.75 AMP, 12-24 VDC, 2 AUXILIARY CONTACTS, 1 NO, 1 NC
    ✓ IN STOCK!
    Buy Surplus As Low As $347.60
    $347.60
    Repair Yours $360.64
    SIEMENS 3TK2040-0AP6

    SIEMENS

    3TK2040-0AP6

    DISCONTINUED BY MANUFACTURER, MINIATURE CONTACTOR, SCREW TERMINAL, 4NO, SNAP-ON MOUNTING, STANDARD MOUNTING RAIL, 220/240VAC, 50/60 HZ, AC OPERATION
    ✓ IN STOCK!
    Buy Surplus As Low As $61.20
    $61.20
    MACROMATIC PMDU

    MACROMATIC

    PMDU

    PHASE MONITOR RELAY, 3-PHASE MONITOR RELAY, 190-500 VAC, DIN RAIL, 10 AMP DPDT RELAYS, PHASE LOSS, REVERSAL - FIXED, UNBALANCE, OVER/UNDER VOLTAGE - ADJUSTABLE
    ✓ IN STOCK!
    $377.40 Buy New $377.40
    $231.98
    Repair Yours $300.00
    MACROMATIC VAKP012D

    MACROMATIC

    VAKP012D

    VOLTAGE MONITOR RELAY FOR 12 VDC, 10 AMP RELAY, DPDT, ADJ PICK UP AND DROP OUT, ADJ DROPOUT DELAY 0.1-10 SECONDS, PLUG-IN
    ✓ IN STOCK!
    $177.00 Buy New $177.00
    $117.00
    Repair Yours $300.00
    COPELAND 085-0160-00

    COPELAND

    085-0160-00

    VOLTAGE MONITOR, 190-630VAC, 3PHASE ,50/60HZ, DIRECT CROSS OF ICM450
    ✓ IN STOCK!
    $403.52 Buy Surplus As Low As $242.11
    $242.11
    Repair Yours $300.00
    MACROMATIC VAKPU

    MACROMATIC

    VAKPU

    DISCONTINUED BY MANUFACTURER, VOLTAGE MONITORING RELAY, OVER/UNDER VOLTAGE, SINGLE PHASE, 10 AMP, 208-240 VAC, 3 VA, SPDT
    ✓ IN STOCK!
    Buy Surplus As Low As $105.67
    $105.67
    MACROMATIC PAP240

    MACROMATIC

    PAP240

    3-PHASE MONITOR RELAY, 240 VAC, 8 PIN SPDT RELAY, PHASE LOSS, PHASE REVERSAL, UNDERVOLTAGE W/ ADJUSTABLE UNDERVOLTAGE TRIP
    ✓ IN STOCK!
    $126.00 Buy New $126.00
    $40.00
    Repair Yours $300.00
    MACROMATIC VMP120A

    MACROMATIC

    VMP120A

    RELAY, VOLTAGE SENSING, DPDT, 120 VAC MONITORED VOLTAGE, 10 AMP, 1 PHASE, QUICK CONNECT, ROHS COMPLIANT
    ✓ IN STOCK!
    $166.26 Buy New $166.26
    $84.26
    MATSUSHITA ELECTRIC ST1-DC5V

    MATSUSHITA ELECTRIC

    PANASONIC

    ST1-DC5V

    POWER RELAY; RELAY TYPE:PCB; COIL VOLTAGE VDC NOM:5V; CONTACT CURRENT MAX:8A; CONTACT VOLTAGE AC NOM:380V; CONTACT VOLTAGE DC NOM:250V; COIL RESISTANC
    ✓ IN STOCK!
    $14.40 Buy Surplus As Low As $8.80
    $8.80
    SIEMENS 3TX71155DF13C

    SIEMENS

    3TX71155DF13C

    RELAY, PLUG-IN, 8-PIN, SQUARE BASE DPDT, 16 AMP, 120 VAC, SOCKET MOUNTED
    ✓ IN STOCK!
    $52.00 Buy Surplus As Low As $39.00
    $39.00
    Repair Yours $300.00
    SIEMENS 3TX7111-3LF13

    SIEMENS

    3TX7111-3LF13

    AC OPERATED. CONTACT CONFIGURATION DPDT. CONTACT VOLTAGE 240 VAC 30 VDC. CONTACT CURRENT 5 AMPERE. COIL VOLTAGE 120 VAC. QUICK CONNECT/PILOT LIGHT IN/SOLDER TERMINAL. PILOT LIGHT IN MOUNTING ...
    ✓ IN STOCK!
    Buy Surplus As Low As $26.75
    $26.75
    Repair Yours $300.00
    NESELCO 601-E-2000

    NESELCO

    601-E-2000

    BUSBAR MONITOR
    ✓ IN STOCK!
    Buy Surplus As Low As $291.81
    $291.81
    Repair Yours $392.08
    CARLO GAVAZZI DUB01CD48500V

    CARLO GAVAZZI

    DUB01CD48500V

    MONITORING RELAY, 1-PHASE AC/DC OVER OR UNDERVOLTAGE MONITORING RELAY, NOMINAL RANGE 2-500 V AC/DC, SPDT RELAY OUTPUT, 22.5 MM DIN-RAIL HOUSING
    ✓ IN STOCK!
    $199.85 Buy New $199.85
    $136.00
    Repair Yours $300.00
    SIEMENS 3UG4614-1BR28-0AA3

    SIEMENS

    3UG4614-1BR28-0AA3

    DIGITAL MONITORING RELAY ASYMMETRY 0-20%, DEFAULT OFF PHASE SEQUENCE, DEFAULT OFF PHASE FAILURE 3 X 160 TO 690 V 50 TO 60 HZ AC UNDERVOLTAGE, DEFAULT 320 V HYSTERESIS, DEFAULT: 5% ON, OFF DE ...
    ✓ IN STOCK!
    $266.00 Buy Surplus As Low As $169.00
    $169.00
    Repair Yours $300.00
    SIEMENS 3UG4513-2BR20

    SIEMENS

    3UG4513-2BR20

    VOLTAGE PHASE MONITOR, 3PHASE RELAY, ADJUSTABLE UNDERVOLTAGE ASYMMETRY 20% FIXED 3 X 160 TO 690 V 50 TO 60 HZ AC HYSTERESIS 5% FIXED DELAY TIME 0-20 S 2 CHANGE-OVER CONTACTS SCREW TERMINAL , ...
    ✓ IN STOCK!
    $588.07 Buy Surplus As Low As $353.90
    $353.90
    Repair Yours $300.00
    SIEMENS 3RK3221-1AA10

    SIEMENS

    3RK3221-1AA10

    EXTENSION MODULE, 3RK3 SERIES, 24 VDC, 4 INPUTS / 2 OUTPUTS, FOR USE W/ SIRIUS 3RK3, DIN RAIL, SCREW TERMINAL, W/O CONNECTION CABLE
    ✓ IN STOCK!
    $1,032.06 Buy Surplus As Low As $489.00
    $489.00
    Repair Yours $406.00
    WESTINGHOUSE 293B004A14

    WESTINGHOUSE

    293B004A14

    DISCONTINUED BY MANUFACTURER, GROUNDING RELAY, 2-8 AMP, 60 HZ, 48-125 VDC, INDICATOR 0.2-2 AMP
    ✓ IN STOCK!
    Buy Surplus As Low As $447.57
    $447.57
    Repair Yours $493.73
    MINILEC VMRD2

    MINILEC

    VMRD2

    DISCONTINUED BY MANUFACTURER, VOLTAGE MONITORING RELAY, 415 VAC, 1120/220/230/240/380/415/440 VAC ± 10% AUX. SUPPLY, 1CO / (2 CO) OUTPUT REPLAY CONTACTS
    ✓ IN STOCK!
    Buy Surplus As Low As $79.56
    $79.56
    Repair Yours $300.00
    TIME MARK CORP B246-240V

    TIME MARK CORP

    B246-240V

    PHASE MONITOR, 3-PHASE, 208/240VAC, SIZE 3.8IN X 1.95IN X 1.95IN
    ✓ IN STOCK!
    $115.14 Buy New $115.14
    $65.62
    HUBBELL GFR5362SG

    HUBBELL

    GFR5362SG

    (PRICE/EA) 20A/125V INDL. TAMPER ST GFCI, BROWN
    ✓ IN STOCK!
    $142.00 Buy Surplus As Low As $86.00
    $86.00
    Repair Yours $300.00
    HUBBELL GFT2G

    HUBBELL

    GFT2G

    POWER PROTECTION PRODUCTS, GFCI RECEPTACLE ACCESSORIES, TESTER, TEST TRIP LEVEL ON ANY STANDARD GFCI, 15 OR 20A 125V AC, GRADUATED 1-7 MA KNOB, WHITE. , GFT-2G
    ✓ IN STOCK!
    $578.00 Buy Surplus As Low As $342.47
    $342.47
    Repair Yours $300.00
    MINILEC VSP-D1

    MINILEC

    VSP-D1

    DISCONTINUED BY MANUFACTURER, PHASE FAILURE RELAY, 240 VAC, UNBALANCE, PHASE SEQUENCE, AUTO REST, 1 CO OUTPUT RELAY, 100-120/220-240/380-440 V AC 20% 50/ 60 HZ
    ✓ IN STOCK!
    Buy Surplus As Low As $139.00
    $139.00
    Repair Yours $300.00
    EATON CORPORATION D15CR40AB77

    EATON CORPORATION

    CUTLER HAMMER

    D15CR40AB77

    MULTI-POLE RELAY, D15 SERIES, 110/120 VAC COIL, FOUR POLE, NORMALLY OPEN CONTACT CONFIGURATION, 600 VAC, WITH FINGER PROTECTION/INDICATOR LIGHT
    ✓ IN STOCK!
    $327.00 Buy Surplus As Low As $132.00
    $132.00
    Repair Yours $300.00
    CROUZET 84873220

    CROUZET

    84873220

    VOLTAGE MONITORING RELAY, 3 PHASE, 2X SPDT 5 AMP, 220-480 VAC, 50/60 HZ, GREEN LED INDICATOR, DIN RAIL MOUNT, IP20 TERMINAL BLOCK, IP30 CASING84873220
    ✓ IN STOCK!
    $364.52 Buy New $364.52
    $218.71
    Repair Yours $300.00
    ASEA BROWN BOVERI KT6NCT-600

    ASEA BROWN BOVERI

    KT6NCT-600

    NEUTRAL GND FLT SENSOR T6 600A
    ✓ IN STOCK!
    $688.00 Buy Surplus As Low As $301.87
    $301.87
    Repair Yours $300.00
    CARLO GAVAZZI PUB01CB2310V

    CARLO GAVAZZI

    PUB01CB2310V

    VOLTAGE LEVEL RELAY, MONITORING RELAY, SINGLE PHASE, SUPPLY: 115-230 VAC (50/60 HZ), AC/DC OVER OR UNDER-VOLTAGE MONITORING, 0.1-10 VAC/DC RANGE, SPDT RELAY OUTPUT, 3 VA, 11-PIN, REPLACES: S ...
    ✓ IN STOCK!
    $193.80 Buy New $193.80
    $127.26
    CARLO GAVAZZI SM-170-380

    CARLO GAVAZZI

    ELECTROMATIC

    SM-170-380

    DISCONTINUED BY MANUFACTURER, SEQUENCE VOLTAGE RELAY, 3 PHASE, 220-380 VAC, 50/60 HZ
    ✓ IN STOCK!
    Buy Surplus As Low As $240.00
    $240.00
    EATON CORPORATION D64RPB1

    EATON CORPORATION

    CUTLER HAMMER

    D64RPB1

    RELAY, GROUND FAULT PROTECTION, 8 AMP, 250 VAC
    ✓ IN STOCK!
    $739.58 Buy Surplus As Low As $159.50
    $159.50
    Repair Yours $300.00
    SIEMENS 3TX7114-5DC13C

    SIEMENS

    3TX7114-5DC13C

    15A DPDT RELAY, PLUG-IN RELAY, BASIC 8-PIN SQUARE BASE DPDT, 15A, 24VAC USES SOCKET 3TX7144-1E6 OR 3TX7144-4E6
    ✓ IN STOCK!
    $30.55 Buy Surplus As Low As $18.33
    $18.33
    Repair Yours $300.00
    SIEMENS 3TX7114-5DB03C

    SIEMENS

    3TX7114-5DB03C

    PLUG-IN RELAY, DPDT, 15A, 12VDC
    ✓ IN STOCK!
    $33.00 Buy Surplus As Low As $15.00
    $15.00
    Repair Yours $300.00
    BENDER RCM420-D-2

    BENDER

    RCM420-D-2

    GROUND-FAULT MONITOR, SUPPLY: 100-250VAC/DC, RATED INSULATION VOLTAGE: 250V, OPERATING RANGE: 70-300VAC/DC, 42-460HZ, OVERVOLTAGE CAT.: IIII
    ✓ IN STOCK!
    $957.00 Buy Surplus As Low As $426.79
    $426.79
    Repair Yours $390.00
    NIDEC CORP CDRO-010

    NIDEC CORP

    CONTROL TECHNIQUES

    CDRO-010

    COMMAND CABLE TO POSITION CONTROLLER, 45, SERVO CABLES
    ✓ IN STOCK!
    $328.39 Buy Surplus As Low As $144.99
    $144.99
    Repair Yours $300.00
    SIEMENS 3UG4615-2CR20

    SIEMENS

    3UG4615-2CR20

    DIGITAL MONITORING RELAY, 3-PHASE, 160-690 VAC, 50/60 HZ, SPRING-LOADED TERMINAL, DIN RAIL MOUNT , 3UG46152CR20
    ✓ IN STOCK!
    $402.15 Buy Surplus As Low As $230.00
    $230.00
    Repair Yours $300.00
    SIEMENS 3UG45122AR20

    SIEMENS

    3UG45122AR20

    MONITORING RELAY, ANALOG, 160-690 VAC, CLAMP, 50/60 HZ, IP20, DIN RAIL MOUNT, SPDT
    ✓ IN STOCK!
    $210.58 Buy Surplus As Low As $126.79
    $126.79
    Repair Yours $300.00
    EATON CORPORATION EZ512-AC-RC

    EATON CORPORATION

    CUTLER HAMMER

    EZ512-AC-RC

    DISCONTINUED BY MANUFACTURER, SMART RELAY, PROGRAMMABLE TYPE, W/ DISPLAY, CLOCK, DIN RAIL MOUNT, 12 I/O, 8 INPUT, 4 OUTPUT, EZ SERIES
    ✓ IN STOCK!
    Buy Surplus As Low As $456.00
    $456.00
    Repair Yours $399.00
    ASEA BROWN BOVERI K6NCT-800

    ASEA BROWN BOVERI

    K6NCT-800

    NEUTRAL GND FAULT SENSOR 800A
    $809.00 Buy Surplus As Low As $486.00
    $486.00
    Repair Yours $404.00
    ASEA BROWN BOVERI PLS120A

    ASEA BROWN BOVERI

    SSAC

    PLS120A

    DISCONTINUED BY MANUFACTURER, REVERSE PHASE RELAY, 3 PHASES, 120V, 10A
    ✓ IN STOCK!
    $173.00 Buy Surplus As Low As $54.30
    $54.30
    ASEA BROWN BOVERI PLMU11

    ASEA BROWN BOVERI

    SSAC

    PLMU11

    VOLTAGE MONITOR, 200/480V, 50/60HZ
    ✓ IN STOCK!
    $299.73 Buy Surplus As Low As $165.82
    $165.82
    Repair Yours $300.00
    TIME MARK CORP C2644

    TIME MARK CORP

    C2644

    3-PHASE MONITOR, 10AMP, 240V, DPDT, AUTOMATIC RESET, SURFACE MOUNT, TRIP DELAY, UNDER VOLTAGE PROTECTION, 480VAC
    ✓ IN STOCK!
    $220.00 Buy New $220.00
    $114.45
    Repair Yours $300.00
    TIME MARK CORP C263

    TIME MARK CORP

    C263

    POWER PHASE MONITOR, 380/480VAC, 10/15AMP, 30/60HZ, 3PH RATING, SPDT CONTACT FORM, PANEL MOUNT, SCREW TERMINATION, ELECTROMECHANICAL RELAY
    ✓ IN STOCK!
    $186.25 Buy New $186.25
    $106.43
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