Easter Closure

We will be closed from 29th March for the Easter Bank Holiday, re-opening Tuesday 2nd April. You can continue to purchase online but orders will not be processed until the 2nd. You may however continue to use our out-of-hours service.

Monitoring Relays

Monitoring relays are a form of relay that trips a circuit breaker when a fault is detected in either single or 3-phase applications. Essentially a monitoring relay is an electrically controlled switch that is used to disconnect or connect power within an electrical circuit.

Your average monitoring relay is a step above the average regular relay, featuring adjustable operating conditions, as opposed to regular relays switching according to a fixed threshold. Monitoring relays measure set parameters, for example - voltage or temperature and will cause a circuit breaker to trip when a set parameter is either too high or low.

Monitoring relays are utilised across a broad spectrum of applications depending largely on what is being monitored. Monitoring relays, as the name suggests, monitor certain aspects of an electrical supply, they can protect against overcurrent if monitoring current, or they can detect a low frequency if frequency is the factor being monitored.

Monitoring relays come in a variety of types defined by what they are intended to measure, including voltage, current, temperature, insulation, and frequency. Other relay types include thermistor monitoring relays, phase monitoring relays and ground fault relays.

Kempston Controls, a leading supplier of electrical and electronic components, stocks an extensive range of monitoring relays from all the leading brands including Siemens, ABB, Telecontrol, Carlo Gavazzi, Crompton Instruments, Lovato and many more.

Give our dedicated sales team a call on +44 (0) 1933 411411 or use the contact form above to discuss your monitoring relay requirements.

Showing 1 - 10 of 17 results

Price
£66.52
£79.82 (IncVAT)

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Finder 70.11.8.230.2022
Finder

70.11.8.230.2022

LINE MONITORING RELAY, UNDER/OVER VOLTAGE, SINGLE PHASE 220-240VAC, 1CO SPDT by Finder

Estimated lead time: 7 to 8 days | Check Availability

This product has to be ordered in multiples of 5.

Price
£100.18
£120.22 (IncVAT)

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Finder 72.01.8.240.0002
Finder

72.01.8.240.0002

LEVEL CONTROL RELAY, ADJUSTABLE 5-150KO, 1CO SPDT, 24VAC by Finder

Estimated lead time: 15 to 16 days | Check Availability

This product has to be ordered in multiples of 5.

Price
£75.89
£91.07 (IncVAT)

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Finder 70.31.8.400.2022
Finder

70.31.8.400.2022

VOLTAGE MONITORING RELAY, 3 PHASE, SPDT, 300-480V AC by Finder

Estimated lead time: 11 to 12 days | Check Availability

This product has to be ordered in multiples of 5.

Price
£111.29
£133.55 (IncVAT)

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Finder 10.51.8.230.0000
Finder

10.51.8.230.0000

LIGHT DEPENDENT RELAY, 1-2 CONTACTS, 12A, 230V, 1NO, 50/60HZ, IP54 by Finder

Estimated lead time: 9 to 10 days | Check Availability

This product has to be ordered in multiples of 5.

Price
£32.99
£39.59 (IncVAT)

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Price
£28.70
£34.44 (IncVAT)

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Finder 72.01.8.125.0000
Finder

72.01.8.125.0000

MONITORING RELAY SPDT 110-125VAC by Finder

Estimated lead time: 8 to 9 days | Check Availability

This product has to be ordered in multiples of 5.

Price
£78.17
£93.80 (IncVAT)

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Finder 72.01.8.024.0000
Finder

72.01.8.024.0000

LEVEL CONTROL MONITORING RELAY SPDT-CO 10A 250V AC by Finder

Estimated lead time: 6 to 7 days | Check Availability

This product has to be ordered in multiples of 5.

Price
£78.17
£93.80 (IncVAT)

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Finder 72.01.8.240.0000
Finder

72.01.8.240.0000

LEVEL CONTROL RELAY 240V by Finder

Estimated lead time: 9 to 10 days | Check Availability

This product has to be ordered in multiples of 5.

Price
£78.17
£93.80 (IncVAT)

Available for Back Order

Quantity:

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