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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MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
UOA-240-ALA
VOLTAGE MONITORING RELAY, UOA SERIES, 205-250 VAC DROP-OUT, 215-260 VAC PICK-UP, 10 V HYSTERESIS, LOCKNUT ADJUSTMENT, DPDT, 8-PIN OCTAL
✓ IN STOCK!
£158.81
Price with VAT:
£190.57
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MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
UOA-120-ALA
VOLTAGE MONITORING RELAY, UOA SERIES, 97-130 VAC DROP-OUT, 102-135 VAC PICK-UP, 5 V HYSTERESIS, DPDT, LOCKNUT, 8-PIN OCTAL
✓ IN STOCK!
£126.31
Price with VAT:
£151.57
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MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
UOA-120-AKA
VOLTAGE MONITORING RELAY, UOA SERIES, 97-130 VAC DROP-OUT, 102-135 VAC PICK-UP, KNOB ADJUSTMENTS, DPDT, 8-PIN OCTAL
✓ IN STOCK!
£85.03
Price with VAT:
£102.04
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MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
UOA-110-DLA
VOLTAGE MONITORING RELAY, UOA SERIES, 92-125 VDC DROP-OUT, 97-130 VDC PICK-UP, 5 V HYSTERESIS, LOCKNUT ADJUSTMENT
✓ IN STOCK!
£113.70
Price with VAT:
£136.44
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MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
SUA-440-ASA
MONITORING RELAY, OPERATING VOLTAGE 430-480 ADJUSTABLE, 10 AMPS, ADJUSTMENT SCREW, OUTPUT RESISTIVE @ 240 VAC, 8 PIN OCTAL, SUA SERIES
✓ IN STOCK!
£105.87
Price with VAT:
£127.04
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MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
SUA-380-ASA
PHASE MONITOR RELAY,
✓ IN STOCK!
£118.57
Price with VAT:
£142.28
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MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
PRA-100-AFN-400
PHASE SEQUENCE MONITOR RELAY 10AMP 208-480VAC
✓ IN STOCK!
£19.38
Price with VAT:
£23.26
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MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
SLD-440-ASA
PHASE VOLTAGE MONITOR, SLD SERIES, 440/480 VAC, 370-460 V UNDERVOLTAGE DROPOUT RANGE, 3 VA, 10 VA, 8 PIN
✓ IN STOCK!
£193.50
Price with VAT:
£232.20
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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!
£110.04
Price with VAT:
£132.05
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MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
SLA-440-ALER
PHASE MONITORING RELAY, 430-480 V, SPDT, 3A/600VAC, SCREW TERMINAL, SLA SERIES
✓ IN STOCK!
£310.05
Price with VAT:
£372.06
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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!
£159.66
Price with VAT:
£191.59
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MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
SLA-230-ALA
PHASE MONITOR RELAY, DPDT, 10A, 240VAC; PRODUCT RANGE:SLA SERIES; CONTACT CONFIGURATION:DPDT; CONTACT CURRENT:10A; RELAY MOUNTING:SOCKET; RELAY TERMINALS:PLUG IN; SWITCHING VOLTAGE MAX:240VA ...
✓ IN STOCK!
£106.60
Price with VAT:
£127.92
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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!
£110.77
Price with VAT:
£132.92
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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!
£237.68
Price with VAT:
£285.22
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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!
£171.91
Price with VAT:
£206.29
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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!
£210.17
Price with VAT:
£252.20
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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!
£281.00
Price with VAT:
£337.20
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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!
£232.54
Price with VAT:
£279.05
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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!
£213.91
Price with VAT:
£256.69
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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!
£124.71
Price with VAT:
£149.65
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MARSH BELLOFRAM
ATC DIVERSIFIED ELECTRONICS
AC-2020
COMPRESSOR PROTECTOR, 3 PHASE MONITOR
✓ IN STOCK!
£281.69
Price with VAT:
£338.03
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TELE CONTROLS
G2UM300VL20
VOLTAGE PROTECTION MONITORING RELAY, 1-PH, 30V - 60V - 300V AC/DC RANGES, MULTIFUNCTION, 2 CO, DPDT RELAY OUTPUT, LED INDICATORS, ADJUSTABLE THRESHOLDS, POWER SUPPLY PROTECTOR, IDEAL FOR BAT ...
✓ IN STOCK!
£61.12
Price with VAT:
£73.34
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BENDER
RCM465Y-13
DISCONTINUED BY MANUFACTURER,GROUND FAULT RELAY, 30-300MA ,RESPONSE 0-1S, 90-132V
✓ IN STOCK!
£79.40
Price with VAT:
£95.28
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ASEA BROWN BOVERI
DS201TK32A30
RCBO, 1P+N, 32A, 30MA SENSITIVITY
✓ IN STOCK!
£331.61
Price with VAT:
£397.93
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TE CONNECTIVITY
CROMPTON INSTRUMENTS
252-PVRU-PQBX-C6
PHASE LOSS RELAY, 5 AMP, 120 VAC, 60 HZ, DIN RAIL MOUNT
✓ IN STOCK!
£194.20
Price with VAT:
£233.04
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FW MURPHY
UVR505
DISCONTINUED BY MANUFACTURER, RELAY UNDER VOLTAGE, FRONT STATUS LEDS, 12 PORTS
✓ IN STOCK!
£115.82
Price with VAT:
£138.98
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SCHNEIDER ELECTRIC
TELEMECANIQUE
RM4TR32
DISCONTINUED BY MANUFACTURER, PHASE FAILURE RELAY, 300V, 5A, RM4,50/60HZ, REPLACED BY RM22TR33
✓ IN STOCK!
£63.49
Price with VAT:
£76.19
SCHNEIDER ELECTRIC
SQUARE D
56327
CURRENT PROTECTION RELAY, VIGIREX RH10M, 1 AMP, 120 VAC, DIN RIAL MOUNT
✓ IN STOCK!
£121.00
Price with VAT:
£145.20
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SCHNEIDER ELECTRIC
MERLIN GERIN
50745
STANDARD UNLATCHED RELAY 110-130VAC 50/60HZ
✓ IN STOCK!
£69.53
Price with VAT:
£83.44
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ASEA BROWN BOVERI
CM-IVN.S
COUPLING UNIT, VOLTAGE RANGE EXPANSION FOR CM-IWN.1, 690 VAC / 1000 VDC, 15-400 HZ, DIN RAIL MOUNT, HOUSING IP50 / TERMINALS IP20, (1SVR750669R9400)
✓ IN STOCK!
£156.00
Price with VAT:
£187.20
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SIEMENS
3UL0303-0EA
DISCONTINUED BY MANUFACTURER, DIFFERENTIAL RELAY, 230 VAC, 50/60 HZ, 0.03-3 AMP ADJUSTABLE, 0.02-1 SEC ADJUSTABLE TIME DELAY, LED INDICATOR, TEST AND RESET BUTTONS, SCREW CLAMP TERMINALS, DI ...
✓ IN STOCK!
£182.51
Price with VAT:
£219.01
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CEE
RMS700
DISCONTINUED BY MANUFACTURER, VOLTAGE RELAY 1AMP 48VDC DIGITAL
✓ IN STOCK!
£183.36
Price with VAT:
£220.03
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PILZ
PZA300/230A
SAFE TIMER RELAY RELAY 230VAC ID
✓ IN STOCK!
£159.00
Price with VAT:
£190.80
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SIEMENS
3RR2143-1AA30
MONITORING RELAY, CAN BE MOUNTED TO CONTACTOR 3RT2, SIZE S2 BASIC, ANALOG ADJUSTMENT APPARENT CURRENT MONITORING 8...80 A, 50...60 HZ, 2-PHASE SUPPLY 24 V AC/DC 1 CHANGE-OVER CONTACT MONITOR ...
✓ IN STOCK!
£87.00
Price with VAT:
£104.40
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SIEMENS
FURNAS ELECTRIC CO
947PB10AG
DISCONTINUED BY MANUFACTURER, VOLTAGE MONITOR 240VAC 200-235V TRIP RANGE
✓ IN STOCK!
£41.49
Price with VAT:
£49.79
GENERAL ELECTRIC
12IFC53A1A
INVERSE TIME OVERCURRENT RELAY, IFC TYPE, NON-DIRECTIONAL SINGLE-PHASE, 50/60HZ RATING, 14 INPUT POINTS, TIME RELAY TEST BUTTON
✓ IN STOCK!
£335.45
Price with VAT:
£402.54
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DOLD
IK9046 DC24V
VOLTAGE MONITOR W/LED 1NC/NO 1-3AMP 230VAC 24VDC
✓ IN STOCK!
£78.00
Price with VAT:
£93.60
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ASEA BROWN BOVERI
RK 411 102-DE
OVER/UNDER VOLTAGE RELAY, 80-240 V, 50/60 HZ, AUXILIARY VOLTAGE: 110-125 AND 220-250 VDC, RXEG 21 SERIES
✓ IN STOCK!
£224.99
Price with VAT:
£269.99
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ASEA BROWN BOVERI
1SVR760669R9400
COUPLING UNIT, VOLTAGE RANGE EXPANSION FOR CM-IWN.1, 690VAC, 1000VDC
✓ IN STOCK!
£162.00
Price with VAT:
£194.40
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HONGFA
HFD23/012-1ZS
SIGNAL RELAY, SPDT, SENSITIVE, 12V/2A/TH ROHS COMPLIANT: YES
✓ IN STOCK!
£1.14
Price with VAT:
£1.37
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SIEMENS
3RH11222JC40
CONTROL RELAY. 2NO+2NC
✓ IN STOCK!
£24.68
Price with VAT:
£29.62
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SIEMENS
3RR2441-1AA40
CURRENT MONITORING RELAY, IO-LINK, SIZE S00, 1.6-16 AMP RANGE, 20-400 HZ, 24 VDC SUPPLY, 1 CHANGE-OVER CONTACT, SCREW CONNECTION , 3RR24411AA40
✓ IN STOCK!
£128.00
Price with VAT:
£153.60
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TIME MARK CORP
272-24
CURRENT-MONITORS, 3-PHASE CURRENT UNBALANCE DETECTOR, 1 - 5A, 24VAC, SIZE 6.06IN X 3.88IN X 2.7IN
✓ IN STOCK!
£159.19
Price with VAT:
£191.03
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TIME MARK CORP
2628
VOLTAGE FREQUENCY MONITOR, OVER OR UNDER VOLTAGE MONITOR, 15-260V AC/DC, SIZE 3.52IN X 2.44IN X 1.75IN
✓ IN STOCK!
£102.83
Price with VAT:
£123.40
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TIME MARK CORP
D264
DISCONTINUED BY MANUFACTURER, 3-PHASE MONITOR, NOMINAL AC VOLTAGE: 575 VOLT AC, ADJUSTMENT RANGE: 450-600 VOLT, FREQUENCY: 60 HZ, RESET TYPE: AUTOMATIC 2.5 WATTS, SCREW TERMINAL CONNECTION, ...
✓ IN STOCK!
£60.00
Price with VAT:
£72.00
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TIME MARK CORP
C2642
MONITOR RELAY, 3 PHASE, 480 VAC, 4.8IN X 4.5IN X 3.5IN SIZE, DPDT, SURFACE MOUNT, TRIP DELAY, NO TRIP RESTART, AUTOMATIC RESET
✓ IN STOCK!
£100.02
Price with VAT:
£120.02
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PILZ
PNOZ/S4/48-240VAC/DC
PNOZ SAFETY RELAY, 48-240VACDC 3 N/O 1 N/C 750134
✓ IN STOCK!
£170.00
Price with VAT:
£204.00
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PILZ
PNOZ X3 110VAC/24VDC
774314 SAFETY RELAY PNOZ X3 110VAC 24VDC 3N/O 1N/C 1SO
✓ IN STOCK!
£162.00
Price with VAT:
£194.40
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