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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MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
SLA-120-ASA
PHASE MONITOR/RELAY, 3-PHASE, 95-130V ADJ., 10A, PLUG-IN, SLA SERIES, 120VAC, SPDT (1 FORM C)
✓ IN STOCK!
Repair Yours
$300.00
MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
CMB-120-AFA-10
CURRENT MONITORING RELAY, CMB SERIES, AC GO/NO-GO, 120 V AC, 50/60 HZ, 10 AMPS, SINGLE POLE DOUBLE THROW, 8-PIN OCTAL TERMINATION
✓ IN STOCK!
Repair Yours
$300.00
MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
CDD-120-ALE-20
UNIVERSAL DC CURRENT MONITOR RELAY,
✓ IN STOCK!
Repair Yours
$300.00
MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
CMU-120-ASA-1
OVERCURRENT MONITOR RELAY, AC, W/ MANUAL RESET, CMU MODEL, 10 AMPS RES @ 120 V AC OUTPUT, DPDT, 120 V AC/DC CONTROL, 50/60 HZ, CURRENT TRIP POINTS - 1-5 AMP, 11-PIN, PLUG-IN MOUNT
✓ IN STOCK!
Repair Yours
$200.00
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!
Repair Yours
$300.00
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!
Repair Yours
$300.00
MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
CML-120-ASE-5
OVERCURRENT MONITOR RELAY, AC, W/ MANUAL RESET, CML 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!
Repair Yours
$300.00
MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
CMI-120-ASE-1
OVERCURRENT MONITOR RELAY, AC, W/ MANUAL RESET, CMI MODEL, OUTPUT - 10 AMPS @ 120 V AC - RESISTIVE, DPDT, CONTROL VOLTAGE - 120 V AC, 50/60 HZ, CURRENT TRIP POINTS - 0.2-1 AMP
✓ IN STOCK!
Repair Yours
$300.00
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!
Repair Yours
$300.00
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
Repair Yours
$1,855.87
ALLEN BRADLEY
809-A20
INSTANTANEOUS TRIP CURRENT RELAY, 130AMP, NEMA OPEN, 1RP,
✓ IN STOCK!
Buy Surplus As Low As
$2,199.43
SCHWEITZER ENGINEERING
SEL-321-321124256HGB354
RELAY, PHASE AND GROUND DISTANCE, DIRECTION OVERCURRENT RELAY, FAULT LOCATOR, ELECTROMECHANICAL, 4 ZONE
✓ IN STOCK!
Repair Yours
$1,167.75
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
Repair Yours
$1,245.00
CR MAGNETICS
CR7310-LH-24D-.11-A-CD-ELR-R2
CR7310 - GROUND FAULT SENSING RELAY, SUPPLY VOLTAGE 24 VDC, TRIP RANGE - 0.1 TO 1.0 AAC, TRIP ON DELAY - .5 TO 6 SEC, CALIBRATED DIAL, CRGFS-200 REMOTE CURRENT TRANSFORMER
✓ IN STOCK!
Repair Yours
$200.00
ASEA BROWN BOVERI
CM-EFS.2S
VOLTAGE MONITORING RELAY, 24-240VAC, SPDT, 4A @ 250V, SCREW TERMINAL, CM SERIES
✓ IN STOCK!
Repair Yours
$300.00
MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
PBC-120-ALE
PHASE VOLTAGE MONITORS
✓ IN STOCK!
Repair Yours
$300.00
MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
SLU-0200
PHASE MONITORING RELAY, SPDT, 200-500VAC; PRODUCT RANGE:-; CONTACT CONFIGURATION:SPDT; CONTACT CURRENT:10A; RELAY MOUNTING:SOCKET; RELAY TERMINALS:PLUG IN; SWITCHING VOLTAGE MAX:240VAC; SUPP ...
✓ IN STOCK!
Repair Yours
$300.00
MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
SLD-230-ALE
PHASE VOLTAGE MONITOR, 208/240 VAC, 185-230 V UNDER VOLTAGE DROPOUT RANGE, 3 VA, 5 VAC HYSTERESIS, DPDT OUTPUT
✓ IN STOCK!
Repair Yours
$377.00
MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
SLA-460-AFE
PHASE MONITOR/RELAY, 460VAC , 3 PHASE
✓ IN STOCK!
Repair Yours
$303.32
MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
SLA-440-ASA
PHASE SEQUENCE AND LOSS MONITOR, RELAY, E-MECH, SPDT, CUR-RTG 10 AMP, CTRL-V 430-480 VAC, VOL-RTG 240 VAC, 8 PIN
✓ IN STOCK!
Repair Yours
$300.00
MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
SLA-440-ALER
PHASE MONITORING RELAY, 430-480 V, SPDT, 3A/600VAC, SCREW TERMINAL, SLA SERIES
✓ IN STOCK!
Repair Yours
$318.00
MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
SLA-230-ALE
RELAY, SLA SERIES, PHASE MONITORING, 190-270 VAC, 5A @ 240 V, 9-PIN, SCREW TERMINAL
✓ IN STOCK!
Repair Yours
$300.00
MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
CBA-120-ALE-10
MONITOR / RELAY, AC OVER AND UNDER CURRENT BAND, 2 - 10 AMP ADJUSTABLE UNDER CURRENT RANGE, 2-10 AMP ADJUSTABLE OVER CURRENT RANGE, 120 VAC, 50/60 HZ
✓ IN STOCK!
Repair Yours
$300.00
MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
CMU-120-ASE-20
OVERCURRENT MONITOR RELAY, AC, W/ MANUAL RESET, CMU 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!
Repair Yours
$300.00
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!
Repair Yours
$300.00
MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
CMI-120-ASE-5
OVERCURRENT MONITOR RELAY, AC, W/ MANUAL RESET, CMI MODEL, OUTPUT - 10 AMPS @ 120 V AC - RESISTIVE, DPDT, CONTROL VOLTAGE - 120 V AC, 50/60 HZ, CURRENT TRIP POINTS - 1-5 AMP
✓ IN STOCK!
Repair Yours
$300.00
MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
CMG-0100-28
CURRENT MONITORING RELAY, CMG SERIES, 240 V AC, SPST - N.O., 5 AMP, QC TABS, PANEL MOUNT, CURRENT TRIP POINT - 28 AMPS
✓ IN STOCK!
Repair Yours
$300.00
DEIF
RMV-112D-DELTA-440VAC-NE+ND-440VAC
PROTECTIVE VOLTAGE RELAY, RMV-112D, COUPLING: DELTA, MEASURING VOLTAGE: 440/254V, MODULE: 440V, SUPPLY: 440VAC, RELAY B: NOR. ENERGIZED, RELAY C: NORM. DEENERGIZED, UNDERVOLTAGE: 80-100%, OV ...
✓ IN STOCK!
Repair Yours
$300.00
ASCO
214B69-480VAC
DISCONTINUED BY MANUFACTURER, UNDER VOLTAGE MONITOR, 480 VAC, 50/60 HZ, 456V PICK UP, 408V DROP OUT
✓ IN STOCK!
Buy Surplus As Low As
$436.49
Repair Yours
$402.54
RADWELL
RAD-PM-002
PHASE MONITOR RELAY, 3-PHASE , 190-500 VAC, DIN RAIL, 10 AMP DPDT RELAYS, PHASE LOSS, REVERSAL - FIXED, UNBALANCE, OVER/UNDER VOLTAGE - ADJUSTABLE
✓ IN STOCK!
Repair Yours
$300.00
GIC
MAC04D0100
VOLTAGE MONITORING RELAY, DPDT, 415VAC; PRODUCT RANGE:SM 500 SERIES; CONTACT CONFIGURATION:DPDT; CONTACT CURRENT:5A; RELAY MOUNTING:DIN RAIL; CONTACT VOLTAGE VAC:250V; RELAY TERMINALS:SCREW; ...
✓ IN STOCK!
Repair Yours
Contact Us
CR MAGNETICS
CR4395-EH-120-110-A-CD-ELR-I
AC CURRENT SENSING RELAY, SOLID CORE INTERNAL CT, 50 - 400 HZ FREQ RANGE, 120 VAC +/- 10% POWER SUPPLY, OVERCURRENT DETECTION, NON-LATCHING, 0.5 - 6 SECOND ADJUSTABLE TIME DELAY, 1 - 10 AAC ...
✓ IN STOCK!
Repair Yours
Contact Us
MACROMATIC
VAKP240A
VOLTAGE MONITOR RELAY FOR 240 VAC, 10 AMP RELAY, DPDT, ADJ PICK UP AND DROP OUT, ADJ DROPOUT DELAY 0.1-10 SECONDS, PLUG-IN
✓ IN STOCK!
Repair Yours
$300.00
MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
GFD-100
THREE PHASE GROUND FAULT DISPLAY, 208 - 600 VAC, TERMINAL STYLE - WIRE LEADS, 0 C - 55 C
✓ IN STOCK!
Repair Yours
$304.00
MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
PBE-440-ASE
THREE PHASE VOLTAGE BAND MONITOR RELAY
✓ IN STOCK!
Repair Yours
$541.00
MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
PBD-480-ALE
PHASE SEQUENCE AND VOLTAGE BAND MONITOR,480VAC 50/60HZ,CONTACTS 10AMP 240VAC RES,360VA 600VAC IND
✓ IN STOCK!
Repair Yours
$300.00
MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
PBD-440-ALE
3 PHASE SEQUENCE & VOLTAGE BAND MONITOR/RELAYS, MAX VOLTAGE 550 VAC, ADJUSTABLE RANGES 390-480 UNDER/440-540 OVER, DPDT, CONTACT RATING 600 VAC, AUTOMATIC RESET
✓ IN STOCK!
Repair Yours
$300.00
MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
SLU-100-ASD
PHASE MONITOR RELAY, SLU-100 SERIES, 3-PHASE, DIN RAIL MOUNT, UNIVERSAL, SPDT CONTACT FORM, 10 AMP, 550 VAC SUPPLY, 240 V RATING
✓ IN STOCK!
Repair Yours
$306.00
MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
SLM-230-ASE
PHASE MONITOR, MICROPROCESSOR CONTROLLED, 200-250 VAC, CONTACTS: 10 AMP @ 240 VAC
✓ IN STOCK!
Repair Yours
$308.00
MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
SLM-120-ASE
PHASE MONITORS MICROPROCESSOR CONTROLLED,
✓ IN STOCK!
Repair Yours
$322.91
MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
SLE-440-ALE
RELAY, PHASE LOSS, UNBALANCE & UNDER VOLTAGE RELAY
✓ IN STOCK!
Repair Yours
$300.00
MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
SLD-440-ALE
PHASE MONITORING RELAY, 440-480 VAC, DPDT, 3 AMP, 600 VAC, SCREW TERMINATION
✓ IN STOCK!
Repair Yours
$300.00
MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
SLA-480-AFE
PHASE VOLTAGE MONITOR, RELAY, SLA SERIES, 480 VAC, SURFACE MOUNTED
✓ IN STOCK!
Repair Yours
$300.00
