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CS-05: Current Sensing Module (5 Amps)


The CS05 AC Current Sensor uses a current transformer to sense the amount of current drawn by a load and activates a relay when the current exceeds a preset level (as low as 100 milliamperes). Because a current transformer is used instead of a shunt/burden resistor, the CS05 generates virtually no heat which makes it ideal for prolonged monitoring purposes.


  • Status Monitoring of devices such as: Lights, Fans, Air-Conditioners, Solenoids, Valves, etc
  • Energy Management Systems (EMS)
  • Building Control Systems (BCS)
  • Home Automation


Input voltage must be supplied at all times for proper operation. Adjust the desired trigger level by monitoring the load current while turning the adjustment knob until the LED lights up (indicating that the status relay is energized) at the desired load current. The CS05 module is now configured and will turn the status relay on and off when the load current is above or below the preset trigger level respectively.


Model CS-05 - AC Current Sensing Module (5 Amps)
Description AC Current Sensor
Sensor Type
Current Transformer
Input Supply
220 to 240 VAC / 50 to 60 Hz
Output Supply (To Load) Taken from Input Supply
Maximum Load Current 5 Amps (Fused Protected)
Trigger Type / Range Level Detection / Adjustable between 0.1 to 3 A (+/-5%)
Status Relay SPDT, Potential Free (NO, NC and COM)
Dimensions(mm) 86 (W) x 66 (D) x 28 (H)

Ordering Information (Part Numbers)

  • CS-05 - AC Current Sensing Module (5 Amps)
Last Updated on Tuesday, 23 July 2013 13:40