Monitoring Relays

Monitoring relays are a type of relay that trips a circuit breaker when a fault is detected. A relay is an electrically controlled switch that is used to turn the power on or off in a circuit. 




Monitoring relays are more sophisticated than regular relays, as they have adjustable operating conditions, whereas normal relays switch according to a fixed threshold. They measure a given parameter, such as voltage or temperature, and will trip a circuit breaker when the parameter gets too high or low. 




What are monitoring relays used for?


Monitoring relays have a wide range of uses, depending largely on the factor being monitored. For example, they can protect against overcurrent if measuring current, or they can detect an abnormally low frequency if frequency is being measured.




Types of monitoring relay


The main way in which monitoring relays differ is the function that they measure. This can be a number of things, including:



  • voltage

  • current

  • temperature

  • frequency


The factor that you need to measure will decide which monitoring relay you choose.


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Description Price Monitoring Application Supply Voltage Contact Configuration Voltage Sensitivity Electrical Phase Voltage Sensing Range Current Sensitivity Minimum Current Sensed Maximum Current Sensed Phase Sensitivity Time Delay Temperature Sensitivity Temperature Sensing Range Frequency Sensing Range
RS Stock No. 914-4645
Mfr. Part No.ICV 115Vac
BrandHiquel
PHP6,523.91
Each
units
Voltage - DPDT Overvoltage, Undervoltage 1 - - - - - - - - -
RS Stock No. 914-4660
Mfr. Part No.ICP300-500 (3-Wire)
BrandHiquel
PHP5,992.45
Each
units
Phase - DPDT - 3 - - - - Phase Failure, Phase Sequence - - - -
RS Stock No. 914-4635
Mfr. Part No.ICC 115Vac
BrandHiquel
PHP5,417.69
Each
units
Current - DPDT - 1 - Overcurrent, Undercurrent - - - - - - -
RS Stock No. 914-4651
Mfr. Part No.ICP200-400 (3 & 4 Wire)
BrandHiquel
PHP5,992.45
Each
units
Phase - DPDT - 3 - - - - Phase Failure, Phase Sequence - - - -
RS Stock No. 914-4641
Mfr. Part No.ICV 24Vac
BrandHiquel
PHP7,235.66
Each
units
Voltage - DPDT Overvoltage, Undervoltage 1 - - - - - - - - -
RS Stock No. 914-4663
Mfr. Part No.ICP-V (4-Wire)
BrandHiquel
PHP5,992.45
Each
units
Phase - DPDT - 3 - - - - Phase Failure, Phase Sequence - - - -
RS Stock No. 914-4632
Mfr. Part No.ICC 24Vac
BrandHiquel
PHP7,640.35
Each
units
Current - DPDT - 1 - Overcurrent, Undercurrent - - - - - - -
RS Stock No. 914-4657
Mfr. Part No.ICV 400Vac
BrandHiquel
PHP6,230.72
Each
units
Voltage - DPDT Overvoltage, Undervoltage 1 - - - - - - - - -
RS Stock No. 914-4639
Mfr. Part No.ICC 230Vac
BrandHiquel
PHP6,679.01
Each
units
Current - DPDT - 1 - Overcurrent, Undercurrent - - - - - - -
RS Stock No. 914-4648
Mfr. Part No.ICC 400Vac
BrandHiquel
PHP8,352.11
Each
units
Current - DPDT - 1 - Overcurrent, Undercurrent - - - - - - -
RS Stock No. 914-4654
Mfr. Part No.ICV 230Vac
BrandHiquel
PHP6,523.91
Each
units
Voltage - DPDT Overvoltage, Undervoltage 1 - - - - - - - - -