Best Phase Monitoring Relays Deals Online in the UK (10 Deals Found)

Last Updated - 15/12/2025 Sort By:

Best Choice
lvifloae

New
DPA51CM44 3 Phase Monitoring Relay 208-480VAC Wide Voltage Protection with Phase Sequence Out of Phase Detection for 3 P
【Strong Anti-interference Ability】: DPA51CM44 three-phase monitoring relay has outstanding anti-interference ability. In

£20.32
Free Shipping
Keenso

New
Keenso GRV8-02 Monitor Relay,Single Phase Voltage Monitoring Relay Over Voltage AC/DC Voltage Monitoring for Phase Seque
Monitor voltage --- Monitor the working voltage (true RMS measurement).This Monitor Relay suitable for long-distance swi

£22.32 £25.33
Free Shipping
Vikye

New
Voltage Monitoring Relay, GRV8-04 3-Phase Voltage Monitoring Relay Phase Sequence Phase Failure Protection M460 35mm DIN
【Feature】 This relay can monitor own working voltage (true RMS measurement).

£21.44
Free Shipping
Kuuleyn

New
Kuuleyn Phase Sequence, Phase Monitoring Relays, 3 Phase Circuit Protection Voltage Monitoring Relay Phase Failure Seque
【Introduction】The protector base adopts 35mm rail type or device type, and has two screw hole structures inside, which c

£25.19 £25.89
Best Value
YWBL-WH

New
3-Phase Monitoring Relay 380V AC 50Hz 3 Phase Sequence Relay Protector Voltage Protective Relay with Digital Display Ove
FLEXIBLE AND EASY TO USE---Over-voltage, under-voltage value adjustable, action time adjustable, voltage unbalance rate

£15.41
Oumefar

New
Voltage Monitoring Relay Phase Loss Protector Multifunction JFY-5-1 208-480VAC Under-voltage Protector 3 Phase Failure R
【PRODUCT PARAMETERS】Rated Voltage :208 480VAC universal ,50/60Hz .Over and Under Pressure Return Difference :1 20V

£28.89
SIEMENS

Used
Siemens 3UG4513-1BR20 Analog Monitoring Relay Phase Failure, White
Ean 4011209642263

£35.71
Jenngaoo

New
3 Phase Monitoring Relay, DFY-5 LCD Display Under Over Voltage Phase Sequence Protector 35mm DIN Rail Voltage Monitoring
Widely Used --- Widely used in motors, fans, pumps, air compressors, hoists, vehicles, cranes, central air conditioners,

£23.59
Schneider Electric

New
Schneider Electric, Zelio Control, RM17TG00, Modular 3 Phase Supply Control Relay, 5A, 1 CO, 208-480VAC
A simple approach to monitor your equipments Control relays can satisfy all the monitoring requirements of mobile proces

£74.99 £89.96
Free Shipping
ABB

New
ABB CM-MPS.21S 3 Phase Monitoring Relay 2c/o, 0,0.1-30s, L1-L2-L3-N=3x180-280V AC (ABB1SVR730885R3300)
Safe and reliable monitoring of all important parameters in your three-phase network

£170.71
Free Shipping

10 Phase Monitoring Relays deals are available from: Amazon stores, starting from £15.41.
The biggest discount we found is 10%% on DPA51CM44 3 Phase Monitoring Relay 208-480VAC Wide Voltage Protection with Phase Sequence Out of Phase Detection for 3 Phase Motor DIN Rail Mounting at Amazon.
The lowest price we found is £15.41 while the highest is £170.71.
Prices for the best Phase Monitoring Relays deals average at £43.86.
Last updated on December 15, 2025.
We scanned these quality online stores and more to deliver you with the best offers online available for Phase Monitoring Relays.