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 63 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 358-6901
Tillv. art.nrIK9271.11 AC220-240V 0.1-15A Tv=0.1-20S
VarumärkeDold
1 713,37 kr
Each
Enheter
Current 220 → 240 V ac SPDT - 1 - Undercurrent 0.1A 15A - 0.1 → 20 s - - -
RS-artikelnummer 358-7049
Tillv. art.nrIK9169.11 3AC380-415/220-240V
VarumärkeDold
758,77 kr
Each
Enheter
Phase 220 → 240 V ac, 380 → 415 V ac SPDT - 3 - - - - Phase Failure - - - -
RS-artikelnummer 240-9320
Tillv. art.nrBA9053/410 AC1A/5A/10A AC230V 0-20S
VarumärkeDold
2 293,42 kr
Each
Enheter
Current 230 V ac SPDT - - - - 0.1A 10A - 0.5 → 5 s - - -
RS-artikelnummer 327-7679
Tillv. art.nrIK9179.11 3AC50/60Hz 400V
VarumärkeDold
784,45 kr
Each
Enheter
Phase 400 V ac SPDT - 3 - - - - Phase Sequence - - - -
RS-artikelnummer 465-0659
Tillv. art.nrMK9053N.12/010 AC0.5-5A
VarumärkeDold
2 458,23 kr
Each
Enheter
Current 230 V ac DPDT - - - Overcurrent 0.5A 5A - 0 → 20 s - - -
RS-artikelnummer 240-9049
Tillv. art.nrAI898 DC24V 6kOhm UH=AC45-400Hz 230V
VarumärkeDold
3 396,79 kr
Each
Enheter
Voltage 24 V dc SPDT - - 0.8 → 1.1 - - - - 0.4 s - - -
RS-artikelnummer 656-6269
Tillv. art.nrIL9837.11 5-200Hz UH=230V
VarumärkeDold
1 913,50 kr
Each
Enheter
Frequency 230 V ac SPDT - - - - - - - 0.1 → 20 s - - 5 → 200 Hz
RS-artikelnummer 500-3408
Tillv. art.nrMK9163N.12/100 AC/DC24V
VarumärkeDold
802,64 kr
Each
Enheter
Temperature 24 V ac/dc DPDT - - - - - - - - Overtemperature - -
RS-artikelnummer 181-2772
Tillv. art.nrMK5880N.12 AC50-400Hz 220-240V 5-100kOhm
VarumärkeDold
2 033,36 kr
Each
Enheter
Insulation 220 → 240 V ac DPDT - - 0 → 500 V ac - - - - - - - 50 → 400 Hz
RS-artikelnummer 240-8973
Tillv. art.nrMK9052.11 DC24V
VarumärkeDold
1 108,71 kr
Each
Enheter
Thermistor 24 V dc SPDT - - - - - - - - - - -
RS-artikelnummer 240-8923
Tillv. art.nrBA9041 3AC50Hz 400V
VarumärkeDold
1 636,32 kr
Each
Enheter
Phase 400 V ac DPDT - 3 - - - - Phase Sequence <50 ms - - -
RS-artikelnummer 181-2796
Tillv. art.nrMK9300N.11/022 3AC24...400V AC12A UH=DC24V
VarumärkeDold
2 487,13 kr
Each
Enheter
Multifunction 24 V dc SPDT - 3 24 → 400 V ac - 100mA 12A - 0 → 10 s, 0.2 → 10 s - - -
RS-artikelnummer 358-6951
Tillv. art.nrIK9178 3AC50/60Hz 400V
VarumärkeDold
552,21 kr
Each
Enheter
Phase 400 V ac - - - - - - - Phase Sequence - - - -
RS-artikelnummer 327-7641
Tillv. art.nrIL9151.12 2-450kOHM AC230V 0.2-20S
VarumärkeDold
1 637,39 kr
Each
Enheter
- - - - - - - - - - - - - -
RS-artikelnummer 181-2769
Tillv. art.nrRN5883.12/61 AC/DC80-230V 10-3000mA 0-10s
VarumärkeDold
4 816,92 kr
Each
Enheter
Residual Current 80 → 230 V ac/dc DPDT - 2 - - 10mA 3000mA - 0 → 10 s - - -
RS-artikelnummer 465-0700
Tillv. art.nrMK9163N.12/100 AC50/60Hz 230V
VarumärkeDold
802,64 kr
Each
Enheter
Temperature 230 V ac DPDT - - - - - - - - Overtemperature - -
RS-artikelnummer 445-9068
Tillv. art.nrIL5880.12 AC50-400Hz 220-240V 5-100kOHM
VarumärkeDold
2 084,73 kr
Each
Enheter
Voltage 220 → 240 V ac DPDT - 1, 3 0 → 500 V ac - - - - <1.3 s - - -
RS-artikelnummer 181-2790
Tillv. art.nrMK9837N.12 5-600Hz UH=AC230V
VarumärkeDold
2 097,57 kr
Each
Enheter
Frequency 230 V ac DPDT - - 15 → 280 V ac, 30 → 550 V ac - - - - 0 → 100 s, 0 → 50 s - - 5 → 600 Hz
RS-artikelnummer 656-6253
Tillv. art.nrIK9143.11 AC50/60Hz 230V Hyst.0.5-10%
VarumärkeDold
1 198,61 kr
Each
Enheter
Frequency 230 V ac SPDT - - - - - - - - - - Maximum of 60 Hz
RS-artikelnummer 445-9046
Tillv. art.nrIL5882.38 AC/DC24V-230V Tv=5S
VarumärkeDold
2 600,56 kr
Each
Enheter
Current 24 → 230 V ac/dc DPDT - - - - 10mA 10A - 0 → 5 s - - -