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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제품설명 단가 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 제품 번호 261-909
제조사 부품 번호84873021
제조사Crouzet
₩123,694.65
Each
수량
Phase 208 → 440 V ac DPDT - 3 - - - - Phase Failure, Phase Sequence 500 ms - - -
RS 제품 번호 819-3208
제조사 부품 번호K8AK-AS2 100-240VAC
제조사Omron
₩194,893.90
Each
수량
Current 100 → 240 V ac SPDT - 1 - Overcurrent, Undercurrent 0.1A 8A - - - - -
RS 제품 번호 850-5392
제조사 부품 번호LMCCR-10A 24-230VAC/DC
제조사Broyce Control
₩134,674.85
Each
수량
Current 24 → 230 V ac/dc SPDT - - - Overcurrent, Undercurrent 0.2A 10A - 0.1 → 30 s - - -
RS 제품 번호 850-5370
제조사 부품 번호LXPRT 280-520VAC
제조사Broyce Control
₩92,928.70
Each
수량
Phase, Voltage 280 → 520 V ac SPDT Undervoltage - 300 → 500 V - - - Phase Failure, Phase Sequence 0.2 → 10 s - - -
RS 제품 번호 518-7275
제조사 부품 번호3UG4511-1BP20
제조사Siemens
₩117,173.80
Each
수량
Phase 320 → 500 V ac DPDT - 3 - - - - Phase Sequence - - - -
RS 제품 번호 914-4663
제조사 부품 번호ICP-V (4-Wire)
제조사Hiquel
₩134,958.50
Each
수량
Phase 115 → 230 V ac DPDT - 3 - - - - Phase Failure, Phase Sequence - - - -
RS 제품 번호 518-7124
제조사 부품 번호3UG4621-1AW30
제조사Siemens
₩195,087.65
Each
수량
Current 24 → 240 V ac/dc SPDT - 1 - Overcurrent, Undercurrent 3mA 500mA - 0.1 → 20 s - - -
RS 제품 번호 146-171
제조사 부품 번호RM17UAS15
₩211,232.45
Each
수량
Voltage 110 → 240 V ac/dc SPDT Overvoltage, Self Powered, Undervoltage 1 65 → 260 V ac/dc - - - - 0.1 → 10 s - - -
RS 제품 번호 614-9375
제조사 부품 번호84871120
제조사Crouzet
₩167,506.95
Each
수량
Current 24 → 240 V ac/dc 2NO/2NC - 3 - Overcurrent, Undercurrent 2mA 500mA - 0.1 → 3 s - - -
RS 제품 번호 629-386
제조사 부품 번호M3PPI 300-500vAC
제조사Broyce Control
₩69,856.95
Each
수량
Phase 300 → 500 V ac - - 3 - - - - Phase Loss, Phase Sequence - - - -
RS 제품 번호 656-6269
제조사 부품 번호IL9837.11 5-200Hz UH=230V
제조사Dold
₩252,414.40
Each
수량
Frequency 230 V ac SPDT - - - - - - - 0.1 → 20 s - - 5 → 200 Hz
RS 제품 번호 262-211
제조사 부품 번호84872152
제조사Crouzet
₩146,186.70
Each
수량
Voltage 110 → 240 V ac/dc SPDT Overvoltage, Undervoltage 1 65 → 260 V ac/dc - - - - 0.1 → 10 s - - -
RS 제품 번호 146-200
제조사 부품 번호RM35JA31MW
₩176,380.70
Each
수량
Current 24 → 240 V ac/dc DPDT - - - Overcurrent, Undercurrent 2mA 500mA - 0.3 → 30 s - - -
RS 제품 번호 794-3939
제조사 부품 번호MG53BH
제조사GIC
₩73,687.00
Each
수량
Voltage 415 V ac DPDT Overvoltage, Undervoltage 3 - - - 5A - 0 → 15 s, 5 s - - -
RS 제품 번호 463-3373
제조사 부품 번호84871020
제조사Crouzet
₩191,169.25
Each
수량
Current 24 V dc SPDT - 1 - Overcurrent, Undercurrent 2mA 500mA - 0.1 → 3 s - - -
RS 제품 번호 775-7914
제조사 부품 번호1SVR730885R1300
제조사ABB
₩343,450.55
Each
수량
Phase, Voltage 90 → 170 V ac DPDT Overvoltage, Undervoltage 3 90 → 170 V ac - - - NEUTRAL, Phase Failure, Phase Imbalance, Phase Sequence 0 s, 0.1 → 30 s - - 45 → 65 Hz
RS 제품 번호 518-7051
제조사 부품 번호3UG4614-1BR20
제조사Siemens
₩182,359.05
Each
수량
Phase, Voltage 160 → 690 V ac DPDT Undervoltage 3 160 → 690 V ac - - - Phase Failure, Phase Imbalance, Phase Sequence 0.1 → 20 s - - -
RS 제품 번호 614-9432
제조사 부품 번호84872141
제조사Crouzet
₩154,821.75
Each
수량
Voltage 24 → 48 V ac/dc SPDT Overvoltage, Undervoltage 1 20 → 80 V ac/dc - - - - 0.1 → 10 s - - -
RS 제품 번호 298-9387
제조사 부품 번호45200 230VAC
제조사Broyce Control
₩113,221.30
Each
수량
Temperature 230 V ac SPDT - - - - - - - 50 ms Overtemperature - -
RS 제품 번호 321-6769
제조사 부품 번호45150 110VAC
제조사Broyce Control
₩134,994.15
Each
수량
Current 110 V ac SPDT - 1 - Overcurrent 5mA 1A - 0.1 → 3 s - - -