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.


...
Voir plus Voir moins

Filtres

Afficher 1 - 20 des 81 produits
Nombre de résultats par page
Description Prix 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
N° de stock RS 819-3254
Référence fabricantK8AKPH1200500VAC
MarqueOmron
50,86 €
Each
Unité
Phase 200 480 V ac DPDT - 3 - - - - Phase Loss, Phase Sequence 0.1 s - - -
N° de stock RS 111-3136
Référence fabricantK8DT-PH1TN
MarqueOmron
45,01 €
Each
Unité
Phase 200 480 V ac SPST - 3 - - - - Phase Loss, Phase Sequence - - - -
N° de stock RS 819-3210
Référence fabricantK8AK-AS3 100-240VAC
MarqueOmron
71,19 €
Each
Unité
Current 100 240 V ac SPDT - 1 - Overcurrent, Undercurrent 10A 200A - - - - -
N° de stock RS 819-3264
Référence fabricantK8AKPW2380480VAC
MarqueOmron
117,39 €
Each
Unité
Voltage 220 480 V ac SPDT Overvoltage, Undervoltage 3 - - - - - 0.1 30 s - - -
N° de stock RS 819-3267
Référence fabricantK8AKPM2380480VAC
MarqueOmron
117,39 €
Each
Unité
Phase 220 480 V ac SPDT - 3 - - - - Overvoltage, Phase Loss, Phase Sequence, Undervoltage 0.1 30 s - - -
N° de stock RS 111-3135
Référence fabricantK8DT-PH1CN
MarqueOmron
45,01 €
Each
Unité
Phase 200 480 V ac SPDT - 3 - - - - Phase Loss, Phase Sequence - - - -
N° de stock RS 819-3214
Référence fabricantK8AK-AS3 24VAC/DC
MarqueOmron
71,19 €
Each
Unité
Current 24 V ac/dc SPDT - 1 - Overcurrent, Undercurrent 10A 200A - - - - -
N° de stock RS 819-3273
Référence fabricantK8AK-TH11S 100-240VAC
MarqueOmron
102,08 €
Each
Unité
Temperature 100 240 V ac SPDT - - - - - - - 100 ms Overtemperature 0 999°C -
N° de stock RS 111-3123
Référence fabricantK8DT-LS1CA
MarqueOmron
47,39 €
Each
Unité
Resistance 100 240 V ac SPDT - 3 - - - - - 0.1 10 s - - -
N° de stock RS 111-3126
Référence fabricantK8DT-LS1TD
MarqueOmron
47,39 €
Each
Unité
Resistance 24 V ac/dc SPST - 3 - - - - - 0.1 10 s - - -
N° de stock RS 819-3208
Référence fabricantK8AK-AS2 100-240VAC
MarqueOmron
71,19 €
Each
Unité
Current 100 240 V ac SPDT - 1 - Overcurrent, Undercurrent 0.1A 8A - - - - -
N° de stock RS 819-3251
Référence fabricantK8AKPA2380480VAC
MarqueOmron
86,55 €
Each
Unité
Phase 220 480 V ac SPDT - 3 - - - - Phase Asymmetry, Phase Loss, Phase Sequence 0.1 30 s - - -
N° de stock RS 111-3130
Référence fabricantK8DT-TH1TD
MarqueOmron
104,98 €
Each
Unité
Temperature 24 V ac/dc SPST - - - - - - - - Overtemperature 0 +999°C -
N° de stock RS 111-3107
Référence fabricantK8DT-VS2CA
MarqueOmron
65,71 €
Each
Unité
Voltage 100 240 V ac SPDT Overvoltage, Undervoltage 1 1 10 V, 3 30 V, 15 150 V - - - - 250 ms - - -
N° de stock RS 111-3137
Référence fabricantK8DT-PM2CN
MarqueOmron
94,78 €
Each
Unité
Phase, Voltage 380 V ac, 400 V ac, 415 V ac, 480 V ac SPDT Overvoltage, Undervoltage 3 - - - - Phase Loss, Phase Sequence 250 ms - - -
N° de stock RS 819-3305
Référence fabricantK8AK-VW3 100-240VAC
MarqueOmron
86,55 €
Each
Unité
Voltage 100 240 V ac SPDT Overvoltage, Undervoltage 1 20 200 V ac/dc, 30 300 V ac/dc, 60 600 V ac/dc - - - - 0.1 30 s - - -
N° de stock RS 819-3270
Référence fabricantK8AK-TH12S 100-240VAC
MarqueOmron
102,08 €
Each
Unité
Temperature 100 240 V ac SPDT - - - - - - - 100 ms Overtemperature 0 10°C -
N° de stock RS 111-3103
Référence fabricantK8DT-AW2CA
MarqueOmron
100,41 €
Each
Unité
Current 100 240 V ac SPDT - 1 - Overcurrent, Undercurrent 0.1 A, 0.5 A 1 A, 5 A - 250 ms - - -
N° de stock RS 111-3124
Référence fabricantK8DT-LS1CD
MarqueOmron
47,39 €
Each
Unité
Resistance 24 V ac/dc SPDT - 3 - - - - - 0.1 10 s - - -
N° de stock RS 111-3120
Référence fabricantK8DT-VW3CD
MarqueOmron
89,76 €
Each
Unité
Voltage 24 V ac/dc SPDT Overvoltage, Undervoltage 1 20 200 V, 30 300 V, 60 600 V - - - - 250 ms - - -