Monitoring Relays

pMonitoring 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. /p pbr/p pMonitoring 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. /p pbr/p pstrongWhat are monitoring relays used for?/strong/p pMonitoring 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./p pbr/p pstrongTypes of monitoring relay/strong/p pThe main way in which monitoring relays differ is the function that they measure. This can be a number of things, including:/p ul livoltage/li licurrent/li litemperature/li lifrequency/li /ul pThe factor that you need to measure will decide which monitoring relay you choose./p

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Description Price 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 Stock No. 347-696
Mfr. Part No.FSRST30SLP-110/230VAC
BrandTempatron
£67.00
Each
Units
Shaft Rotation Sensor 110 V ac, 230 V ac SPDT - - Maximum of 30 V dc - - - - 1 → 30 s - - 50 → 60 Hz
RS Stock No. 348-150
Mfr. Part No.FSST-110/230VAC
BrandTempatron
£79.19
Each
Units
Speed 110 V ac, 230 V ac SPDT - - - - - - - - - - 50 → 60 Hz
RS Stock No. 376-3726
Mfr. Part No.TR4801-02-110/240VAC
BrandTempatron
£94.03
Each
Units
Speed 110 V ac, 230 V ac SPDT - - - - - - - - - - -
RS Stock No. 376-3748
Mfr. Part No.TR4801-01-24VAC/DC
BrandTempatron
£94.03
Each
Units
Speed 24 V ac/dc SPDT - - - - - - - - - - -
RS Stock No. 376-3710
Mfr. Part No.TR4801-01-110/240VAC
BrandTempatron
£94.03
Each
Units
Speed 110 V ac, 230 V ac SPDT - - - - - - - - - - -
RS Stock No. 376-3732
Mfr. Part No.TR4801-03-110/240VAC
BrandTempatron
£94.03
Each
Units
Speed 110 V ac, 230 V ac SPDT - - - - - - - - - - -
RS Stock No. 376-3754
Mfr. Part No.TR4801-02-24VAC/DC
BrandTempatron
£94.03
Each
Units
Speed 24 V ac/dc SPDT - - - - - - - - - - -
RS Stock No. 376-3760
Mfr. Part No.TR4801-03-24VAC/DC
BrandTempatron
£94.03
Each
Units
Speed 24 V ac/dc SPDT - - - - - - - - - - -