A-K3 Current Transmitter


A-K3 series hall effect current Transmitter is an open loop device based on the measuring principle of the hall effect, with a galvanic isolation between primary and secondary circuit. It provides accurate electronic measurement of AC or pulsed currents.

Directions for use:

  • When the current will be measured goes through a transmitter, the voltage will be measured at the output end. (Note: The false wiring may result in the damage of the transmitter)
  • Customs can adjust output amplitude of the transmitter by needs.
  • Custom design in the different rated input current and the output voltage are available.


  • Variable speed drives
  • Welding machine
  • Battery supplied applications
  • Uninterruptible Power Supplies (UPS).
  • Electrochemical
Type A-K3-30A A-K3-50A A-K3-100A A-K3-200A A-K3-300A A-K3-400A Unit
Rated current(Ipn AC) 30 50 100 200 300 400 A
Measure range(Ip AC) 0—60 0—100 0—200 0—400 0—600 0—600 A
Rated output(Vo DC) @Ip=±Ipn AC     5±1% V
Supply voltage ±12,±15 V
Power Consumption 25 mA
Offset voltage @Ip=0     ±30 mV
Offset drift @ -40~+85℃    ≤±1 mV /℃
Output drift @ -40~+85℃    ≤±1 mA /℃
Linearity @Ip=0-±Ipn   ≤1 %FS
Response time ≤200 ms
Galvanic isolation @ 50HZ,AC,1min    2.5 KV
Bandwidth 20~20000 HZ






SJ 20790-2000

Mechanical dimension(for reference only) Effects of impulse noise
A-K3 Current Transmitter-heyi A-K3 Current Transmitter-heyi
General date Value Unit
Operating temperature(TA) -40 to +85
Storage temperature(TS) -40 to +125
Mass(approx) (M) 55 g

    contact us

    24Hs online service   365Ds NON-Stop Production   20Ys Professional Manufacturers Professional designer and manufacturer of current transformer,cooperated with Siemens ,schneider Fuji electrical softbank LG samdsung.
    Company HEYI Electrical CO.,LTD Contact person Bethy
    Tel 86-13968747975 E-mail bethy@heyiele.com
    ADD Xinguang Ind.Zone, Liushi Town, Wenzhou, Zhejiang, China


    Register as one of our members and provide you with the latest product and discount information.