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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Omschrijving Prijs 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-stocknr. 131-791
Fabrikantnummer265574 & Z-TN230/SS
FabrikantEaton
€ 52,71
Each
Aantal stuks
- - DPST - - - - - - - - - - 50Hz
RS-stocknr. 179-3543
Fabrikantnummer184776 & EMR6-W300-C-1
FabrikantEaton
€ 172,55
Each
Aantal stuks
Phase, Voltage - - - - 160 → 300V ac - - - - 0.1 → 30s - - 50 → 60Hz
RS-stocknr. 179-3544
Fabrikantnummer184777 & EMR6-W380-L-1
FabrikantEaton
€ 140,25
Each
Aantal stuks
Phase, Voltage - - - - - - - - - 0.1 → 30s - - 50 → 60Hz
RS-stocknr. 179-3555
Fabrikantnummer184786 & EMR6-T50-A-1
FabrikantEaton
€ 199,75
Each
Aantal stuks
Temperature - - - - - - - - - - - -50 → +50°C -
RS-stocknr. 179-3546
Fabrikantnummer184778 & EMR6-W400-M-1
FabrikantEaton
€ 140,25
Each
Aantal stuks
Phase, Voltage - - - - - - - - - 0.1 → 30s - - 50 → 60Hz
RS-stocknr. 179-3556
Fabrikantnummer184787 & EMR6-T100-A-1
FabrikantEaton
€ 199,75
Each
Aantal stuks
Temperature - - - - - - - - - - - 0 → +100°C -
RS-stocknr. 179-3547
Fabrikantnummer184779 & EMR6-W500-D-1
FabrikantEaton
€ 172,55
Each
Aantal stuks
Phase, Voltage - - - - 300 → 500V ac - - - - 0.1 → 30s - - 50 → 60Hz
RS-stocknr. 179-3557
Fabrikantnummer184788 & EMR6-T200-A-1
FabrikantEaton
€ 199,75
Each
Aantal stuks
Temperature - - - - - - - - - - - 0 → +200°C -
RS-stocknr. 179-3548
Fabrikantnummer184780 & EMR6-IM1-A-1
FabrikantEaton
€ 194,65
Each
Aantal stuks
Current - - - 1 - - 0.003 A, 0.01 A, 0.1A 0.03 A, 0.1 A, 1A - 0.1 → 30s - - -
RS-stocknr. 179-3541
Fabrikantnummer184774 & EMR6-R400-A-2
FabrikantEaton
€ 469,20
Each
Aantal stuks
Insulation - - - - 0 → 400V ac - - - - - - - -
RS-stocknr. 179-3554
Fabrikantnummer184785 & EMR6-VF600-A-1
FabrikantEaton
€ 194,65
Each
Aantal stuks
Voltage - - - 1 24 → 240V ac/dc - - - - 0.1 → 30s - - -
RS-stocknr. 179-3549
Fabrikantnummer184781 & EMR6-IM15-A-1
FabrikantEaton
€ 194,65
Each
Aantal stuks
Current - - - 1 - - 0.003 A, 0.01 A, 0.1A 0.03 A, 0.1 A, 1A - 0.1 → 30s - - -
RS-stocknr. 179-3542
Fabrikantnummer184775 & EMR6-RC690
FabrikantEaton
€ 249,90
Each
Aantal stuks
Insulation - - - - 0 → 690V ac - - - - - - - -
RS-stocknr. 179-3519
Fabrikantnummer184754 & EMR6-I15-A-1
FabrikantEaton
€ 183,60
Each
Aantal stuks
Current - - - 1 - - 0.3 A, 1 A, 3A 1.5 A, 5 A, 15A - 0.1 → 30s - - -
RS-stocknr. 179-3521
Fabrikantnummer184756 & EMR6-N1000-N-1
FabrikantEaton
€ 94,35
Each
Aantal stuks
Level - - - - - - - - - - - - -
RS-stocknr. 179-3522
Fabrikantnummer184757 & EMR6-N1000-A-1
FabrikantEaton
€ 165,75
Each
Aantal stuks
Level - - - - - - - - - 0.1 → 30s - - -
RS-stocknr. 179-3525
Fabrikantnummer184759 & EMR6-PH22
FabrikantEaton
€ 8,84
Each
Aantal stuks
- - - - - - - - - - - - - -
RS-stocknr. 179-3528
Fabrikantnummer184762 & EMR6-A500-D-1
FabrikantEaton
€ 143,65
Each
Aantal stuks
Phase, Voltage - - - - 300 → 500V ac - - - - 0.1 → 30s - - 50 → 60Hz
RS-stocknr. 179-3529
Fabrikantnummer184763 & EMR6-AW300-C-1
FabrikantEaton
€ 175,10
Each
Aantal stuks
Phase, Voltage - - - - 160 → 300V ac - - - - 0.1 → 30s - - 50 → 60Hz
RS-stocknr. 179-3516
Fabrikantnummer184789 & EMR6-F500-G-1
FabrikantEaton
€ 90,95
Each
Aantal stuks
Phase, Voltage - - - - 200 → 500V ac - - - - - - - 50 → 60Hz