FU16 Economic 333mv mini Split Core Current Transformer for meter

333mv mini Split Core Current Transformer

FU-16 series of split-core current transformer offers 333mV, 100mV-2V and 10mA-200mA at secondary from sensed primary current. Without using secondary CT inside of meter, users directly connect FU-16 series to meter for high accuracy metering application. It enables one meter to be adopted for various current rating by only changing primary CT so it makes compact meter design and reduces developing cost. Also, over-voltage protection circuit is included to offer safe, fast and cost effective installation.



  • Most cost-effective
  • Faster installation
  • Safe and easy installations
  • High accuracy 0.5
  • Holding wire diameter: φ16mm
  • Measurement range of 1mA to 200A AC
  • Low phase shift for power measurement
  • Output model: Lead output(2.5m)
  • Isolated plastic case recognized according to UL94-V0
  • Small-size, compact size, light-weight
  • Over-Voltage protection circuit is installed.
  • CE, UL / EN 61010 - 1 certified


Technical parameters 
Standards IEC/EN60044-1 & IEC61010-1 & IEC61869-2&ANSI C57.13
Ratio 1000: 1 or 2000:1 , customized
Nominal input current(Primary current) 20A/30A/40A/50A/60A/80A/100A/150A/200A
Overload withstand 1.2 times rated current continuously
Accuracy 0.2%, 0.5 %, 1%
System Voltage 720V(0.72kV)
Output signal 10mA-200mA AC optional
333mV AC or 100mV-2V optional
Frequency range 40 Hz-500 Hz
Dielectric strength 3KV 50Hz/60Hz at 1 minute
Output Standard 2.5 meter cable
Protection Level 3.0V0-P
Installation Category CATⅡ or CATⅢ 600VAC
Max. jaw opening 16 mm
Mechanical parameters 
Dimensions (W×D×H) (mm) 38mm×55mm×18mm
Weight(g) 60
Operating conditions
Operating temperature -25°C to +55°C
Relative Humidity 0-85% non-condensing
Altitude <3500 meters
Condition No existence of severely begrimed, erosive and
radioactive gas in the air. Permission of long-term
operation under rated current.

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