VS1 Type Voltage Sensor


VS1 series current mode voltage sensor is a device based on the principle of the hall effect, with a galvanic isolation between primary and secondary circuit. It provides accurate electronic measurement of DC AC or pulsed currents.

Directions for use:

  • The accuracy of sensor will be the best when the current passes through resister R1 and becomes the rated primary current, and therefore the current to be measured by sensor should comply with the primary current 10mA.
  • Samples: VIN=250V For example, VIN=250V:                    (Accuracy )=±0.8%ofVIN(@Ta=+25℃)      a) R1=25KΩ /10W,IP =10mA                                                                                                                                                         (Accuracy )=±1.6%ofVIN(@Ta=+25℃)      b) R1=50KΩ / 5W,IP =5mA
  • Considering resistance of primary coil (compared with R1 and temperature difference kept as low as possible) and electrical isolation within measure range (recommended), this sensor is suitable for measuring voltage.


  • AC variable speed drives
  • Static converters for DC motor drives
  • Battery supplied applications
  • Uninterruptible Power Supplies (UPS)
  • Switched Mode Power Supplies (SMPS)
  • Power supplies for welding applications
Type VS1-5mA VS1-10mA Unit
Rated current(Ipn) 5 10 mA
Measure range(Ip) 7 14 mA
Turns ratio(Np/Ns) 5000:1000 2500:1000 T
Primary coil resister 650 200 Ω
Secondary coil resister 110 110 Ω
Measure resister 100~350 100~190 Ω
Rated output 25 25 mA
Supply voltage ±12,±15 V
Power Consumption ≤20+ IpX(Np/Ns) mA
Offset current @Ip=0    ±0.2 mA
Offset drift @ -40~+85℃    ≤±0.5 mA
Linearity @Ip=0-±Ipn   ≤0.2 %FS
Response time ≤40 μS
Galvanic isolation @ 50HZ,AC,1min   2.5 KV






SJ 20790-2000

Mechanical dimension(for reference only) Effects of impulse noise
VS1 Type Voltage Sensor-heyi VS1 Type Voltage Sensor-heyi
General date Value Unit
Operating temperature(TA) -40 to +85
Storage temperature(TS) -40 to +125
Mass(approx) (M) 22 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.