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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Beskrivning Pris 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-artikelnummer 775-8015
Tillv. art.nr1SVR730841R1400
VarumärkeABB
1 712,30 kr
Each
Enheter
Current 220 240 V ac DPDT - 1 - Overcurrent, Undercurrent 0.1 A, 3 mA, 10 mA 1 A, 30 mA, 100 mA - 0 s, 0.1 30 s - - 50 60 Hz
RS-artikelnummer 775-7958
Tillv. art.nr1SVR730830R0500
VarumärkeABB
2 186,91 kr
Each
Enheter
Voltage 24 240 V ac/dc DPDT Overvoltage, Undervoltage 1 3 30 V, 6 60 V, 30 300 V, 60 600 V - - - - 0 s, 0.1 30 s - - -
RS-artikelnummer 876-5768
Tillv. art.nr1SVR730740R0300
VarumärkeABB
2 038,01 kr
Each
Enheter
Temperature 24 240 V ac/dc SPDT - 3 - - - - - 20 ms Overtemperature, Temperature Window Monitoring, Undertemperature 0 +200°C 13.5 440 Hz
RS-artikelnummer 775-7983
Tillv. art.nr1SVR730840R0500
VarumärkeABB
2 028,71 kr
Each
Enheter
Current 24 240 V ac/dc DPDT - 1 - Overcurrent, Undercurrent 0.3 A, 1 A, 3 A 1.5 A, 5 A, 15 A - 0 s, 0.1 30 s - - 50 60 Hz
RS-artikelnummer 775-8024
Tillv. art.nr1SVR740830R0400
VarumärkeABB
2 075,24 kr
Each
Enheter
Voltage 24 240 V ac/dc DPDT Overvoltage, Undervoltage 1 3 30 V, 6 60 V, 30 300 V, 60 600 V - - - - 0 s, 0.1 30 s - - -
RS-artikelnummer 442-9405
Tillv. art.nr1SVR550801R9300
VarumärkeABB
479,26 kr
Each
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Temperature 220 240 V ac SPST - 1 - - - - - <100 ms Overtemperature, Undertemperature - -
RS-artikelnummer 876-4989
Tillv. art.nr1SVR740720R1400
VarumärkeABB
1 051,58 kr
Each
Enheter
Temperature 24 240 V ac/dc SPDT - - - - - - - <100 ms Overtemperature, Winding Temperature - -
RS-artikelnummer 876-5758
Tillv. art.nrCM-TCS.11S
VarumärkeABB
2 038,01 kr
Each
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Temperature 24 240 V ac/dc SPDT - 3 - - - - - 20 ms Overtemperature, Temperature Window Monitoring, Undertemperature -50 +50°C 13.5 440 Hz
RS-artikelnummer 876-5761
Tillv. art.nrCM-TCS.12S
VarumärkeABB
2 038,01 kr
Each
Enheter
Temperature 24 240 V ac/dc SPDT - 3 - - - - - 20 ms Overtemperature, Temperature Window Monitoring, Undertemperature 0 +100°C 13.5 440 Hz
RS-artikelnummer 775-7889
Tillv. art.nr1SVR730784R2300
VarumärkeABB
1 507,57 kr
Each
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Phase, Voltage 380 V ac DPDT - 3 342 418 V ac - - - Phase Failure, Phase Sequence 0 s, 0.1 30 s - - 45 65 Hz
RS-artikelnummer 876-4995
Tillv. art.nr1SVR730700R2100
VarumärkeABB
553,71 kr
Each
Enheter
Temperature 110 130 V ac, 220 240 V ac SPDT - 1 - - - - - <100 ms Overtemperature, Winding Temperature - -
RS-artikelnummer 876-5764
Tillv. art.nrCM-TCS.12P
VarumärkeABB
2 093,85 kr
Each
Enheter
Temperature 24 240 V ac/dc SPDT - 3 - - - - - 20 ms Overtemperature, Temperature Window Monitoring, Undertemperature 0 +100°C 13.5 440 Hz
RS-artikelnummer 775-7930
Tillv. art.nr1SVR730750R0400
VarumärkeABB
2 186,91 kr
Each
Enheter
Voltage 24 240 V ac/dc DPDT Overvoltage, Undervoltage 1 3 30 V, 6 60 V, 30 300 V, 60 600 V - - - - 0 s, 0.1 30 s - - -
RS-artikelnummer 775-7961
Tillv. art.nr1SVR730831R0400
VarumärkeABB
1 712,30 kr
Each
Enheter
Voltage 110 130 V ac DPDT Overvoltage, Undervoltage 1 3 30 V, 6 60 V, 30 300 V, 60 600 V - - - - 0 s, 0.1 30 s - - -
RS-artikelnummer 775-7964
Tillv. art.nr1SVR730831R1300
VarumärkeABB
1 582,02 kr
Each
Enheter
Voltage 220 240 V ac SPDT Overvoltage, Undervoltage 1 3 30 V, 6 60 V, 30 300 V, 60 600 V - - - - - - - -
RS-artikelnummer 775-7920
Tillv. art.nr1SVR750487R8300
VarumärkeABB
2 633,60 kr
Each
Enheter
Phase, Voltage 350 580 V ac DPDT Overvoltage, Undervoltage 3 350 580 V ac - - - Phase Failure, Phase Imbalance, Phase Sequence 0 s, 0.1 30 s - - 45 65 Hz
RS-artikelnummer 876-5783
Tillv. art.nrCM-TCS.22S
VarumärkeABB
1 675,08 kr
Each
Enheter
Temperature 24 V ac/dc SPDT - 3 - - - - - 20 ms Overtemperature, Temperature Window Monitoring, Undertemperature 0 +100°C 45 65 Hz
RS-artikelnummer 775-7895
Tillv. art.nr1SVR730794R3300
VarumärkeABB
1 907,73 kr
Each
Enheter
Phase, Voltage 300 500 V ac DPDT Overvoltage, Undervoltage 3 300 500 V ac - - - Phase Failure, Phase Sequence 0 s, 0.1 30 s - - 45 65 Hz
RS-artikelnummer 876-4998
Tillv. art.nr1SVR730700R0100
VarumärkeABB
553,71 kr
Each
Enheter
Temperature 24 V ac/dc SPDT - - - - - - - <100 ms Overtemperature, Winding Temperature - -
RS-artikelnummer 876-5799
Tillv. art.nrCM-TCS.23P
VarumärkeABB
1 721,61 kr
Each
Enheter
Temperature 24 V ac/dc SPDT - 3 - - - - - 20 ms Overtemperature, Temperature Window Monitoring, Undertemperature 0 +200°C 45 65 Hz