40A CT Sensor (ID 9mm)

EMS energy monitors use CT sensors to monitor current. The sensors connect to the analog inputs on the energy monitor, of which there are three types:

  • Source (SRC) channels SRC1&2 on the standard unit and SRC1,2&3 on the Pro unit
  • Sub Circuit channels CH1~8 on the standard unit and CH1~16 on the Pro unit.
  • All channels on the Ecomon unit.

For the Ecofront and Ecofront Pro the SRC channels and the sub circuit channels serve different functions – they measure current in different ways and therefore use different sensor types.

For the Ecomon all channels can be configured to monitor any combination of mains or sub-circuits.

SKU: EFCT40A/10mA Category:


Part Number: EFCT40A/10mA
Description: 40A CT Sensor
Windings: 2000
Rated input current (Arms): 40
Max input current(Arms): 48
Rated voltage: 250VAC
Insulation resistance: 100MΩ@500Vdc
Dielectric strength: 2500V (r.m.s)
Linearity: less than ± 1% at 5%~120% of rated current
Case material: Plastic resin
Case colour: Black
Operating temperature: -40~85°C
Dimensions (mm): ID9 L26 W17 H28.5