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.


...
Read more Read less

Filter

Visar 1 - 20 av 40 produkter
Resultat per sida
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 123-9721
Tillv. art.nrV2TF01
VarumärkeTele
544,95 kr
Each
Enheter
Temperature 24 → 240 V ac/dc SPST - 1 - - - - - 50 ms Overtemperature - -
RS-artikelnummer 123-9730
Tillv. art.nrK3UM230VAC02
VarumärkeTele
1 655,59 kr
Each
Enheter
Voltage 230 V ac DPDT Undervoltage 1 Maximum of 230 V ac - - - - - - - -
RS-artikelnummer 123-9722
Tillv. art.nrV2UM230V10
VarumärkeTele
962,33 kr
Each
Enheter
Voltage 24 V dc, 230 V ac/dc SPDT Overvoltage, Undervoltage 1 Maximum of 230 V ac/dc, Maximum of 24 V dc - - - - 0.1 → 10 s, 300 ms - - -
RS-artikelnummer 182-9992
Tillv. art.nrE3YF400V02 0.85
VarumärkeTele
955,23 kr
Each
Enheter
Voltage 400/230 V ac DPDT - 3 - - - - - 200 ms - - 48 → 63 Hz
RS-artikelnummer 182-9993
Tillv. art.nrE1YF400V01 0.85
VarumärkeTele
1 018,67 kr
Each
Enheter
Voltage 400/230 V ac SPDT - 3 - - - - - 200 ms - - 48 → 63 Hz
RS-artikelnummer 123-9723
Tillv. art.nrV2IM10AL10
VarumärkeTele
1 101,60 kr
Each
Enheter
Current 24 → 240 V dc, 110 → 240 V ac SPDT - 1 - Overcurrent, Undercurrent - 10 (Input) A, 150 (Over Load) A - 0.1 → 10 s, 300 ms - - -
RS-artikelnummer 123-9752
Tillv. art.nrG2PM230VSY20 24-240V
VarumärkeTele
2 137,49 kr
Each
Enheter
Phase, Voltage 12 → 400 V ac, 24 V dc DPDT Undervoltage 3 132 → 230 V - - - Phase Failure, Phase Sequence 0.1 → 10 s - - -
RS-artikelnummer 123-9732
Tillv. art.nrK3PF400VSY02
VarumärkeTele
1 110,86 kr
Each
Enheter
Phase, Voltage 230 → 400 V DPDT Self Powered 3 230 → 400 V - - - Phase Failure, Phase Sequence 100 ms - - -
RS-artikelnummer 730-0495
Tillv. art.nrE3TF01 230V AC
VarumärkeTele
946,31 kr
Each
Enheter
Temperature 230 V ac SPDT - - - - - - - 250 ms Winding Temperature - -
RS-artikelnummer 182-9994
Tillv. art.nrE3YM230VS20
VarumärkeTele
988,48 kr
Each
Enheter
Voltage 230/132 V ac DPDT - 1, 3 - - - - - 30 ms - - 48 → 63 Hz
RS-artikelnummer 123-9750
Tillv. art.nrG2PM400VSY20 24-240VAC/DC
VarumärkeTele
2 005,32 kr
Each
Enheter
Phase, Voltage 12 → 400 V ac, 24 V dc DPDT Undervoltage 3 230 → 400 V - - - Phase Failure, Phase Sequence 0.1 → 10 s - - -
RS-artikelnummer 123-9748
Tillv. art.nrG2IM10AL20 24-240VAC/DC
VarumärkeTele
2 041,92 kr
Each
Enheter
Current 24 → 240 V ac/dc DPDT - 1 - Overcurrent, Undercurrent 100mA 10A - 0 → 10 (Start Up) s, 0.1 → 10 (Tripping) s - - -
RS-artikelnummer 123-9728
Tillv. art.nrV4IM35AL20 24-240V AC/DC
VarumärkeTele
1 449,46 kr
Each
Enheter
Current 24 → 240 V ac/dc DPDT - 1 - Overcurrent, Undercurrent - 35A - 0.1 → 10 s - - -
RS-artikelnummer 123-9724
Tillv. art.nrV2PM400Y/230VS10
VarumärkeTele
1 136,32 kr
Each
Enheter
Phase 230 → 400 V ac SPDT - 1, 3 - - - - Phase Loss, Phase Sequence 0.1 → 10 s, 200 ms - - -
RS-artikelnummer 123-9720
Tillv. art.nrE3LM10 230V AC
VarumärkeTele
1 089,38 kr
Each
Enheter
Liquid Level 230 V ac SPDT - 1 - - - - - 0.5 → 10 s - - -
RS-artikelnummer 123-9719
Tillv. art.nrE3PF400VSY02
VarumärkeTele
1 345,55 kr
Each
Enheter
Phase, Voltage 230 → 400 V DPDT Self Powered 3 230 → 400 V - - - Phase Failure, Phase Sequence 100 ms - - -
RS-artikelnummer 123-9733
Tillv. art.nrK3YM400VSY20
VarumärkeTele
1 881,83 kr
Each
Enheter
Phase, Voltage 230 → 400 V DPDT - 1, 3 230 → 400 V - - - Phase Failure, Phase Sequence 0.1 → 10 s - - -
RS-artikelnummer 123-9729
Tillv. art.nrK3UM24VDC02
VarumärkeTele
1 655,59 kr
Each
Enheter
Voltage 24 V dc DPDT Undervoltage 1 Maximum of 24 V dc - - - - - - - -
RS-artikelnummer 123-9713
Tillv. art.nrE1PF400VSY01
VarumärkeTele
720,67 kr
Each
Enheter
Phase, Voltage 230 → 400 V SPDT Self Powered 3 230 → 400 V - - - Phase Failure, Phase Sequence 100 ms - - -
RS-artikelnummer 182-9995
Tillv. art.nrG2PU690VS20
VarumärkeTele
1 780,66 kr
Each
Enheter
Voltage 250 V ac DPDT - 3 - - - - - 10 ms - - 20 → 70 Hz