LD2 Type Current Sensor


LD2 series DC leakage current sensor is a series of new device developed according to principle of electromagnetic induction. Its low current is stable. It is highly insulating between its primary coil and secondary coil. This sensor is used to measure current of signal system, circuit, and leakage monitoring system, as well as to measure current difference.

Directions for use:

  • When the current will be measured goes through a sensor, the current will be measured at the output end. (Note: The false wiring may result in the damage of the sensor)
  • Custom design in the different rated input current and the output current are available.


  • Variable speed drives
  • Welding machine
  • Battery supplied applications
  • Uninterruptible Power Supplies (UPS).
  • Electrochemical
Type LD2-10mA LD2-20mA LD2-30mA LD2-50mA LD2-100mA Unit
Rated current(Ipn) ±10 ±20 ±30 ±50 ±100 mA
Measure range(Ip) ±12 ±24 ±36 ±60 ±120 mA
Rated output @Ip=±Ipn        ±5±1% V
Supply voltage ±12,±15 V
Power Consumption 25 mA
Offset voltage @Ip=0         ±50 mV
Offset drift @ -40~+85℃     ≤±1.5 mV/℃
Output drift @ -40~+85℃     ≤±1 mV/℃
Linearity @Ip=0-±Ipn        ≤1 %FS
Response time @50A/μS, 10%-90%      ≤50 μs
Galvanic isolation @ 50HZ,AC,1min       2.5 KV
Mechanical dimension(for reference only) Note
LD2 Type Current Sensor-heyi 1. All dimensions are in mm.

2. General tolerance ±1mm.

3. Elucidation: 1:+15V 2:–15V 3:V0UT 4:NC

General date Value Unit
Operating temperature(TA) -40 to +85
Storage temperature(TS) -40 to +125
Mass(approx) (M) 90 g
Characteristic of Output Noise Voltage Input Current-Output Voltage
LD2 Type Current Sensor-heyi Noise Voltage

( Output signal )

LD2 Type Current Sensor-heyi

    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


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