NSQ Type Current Transformer


NSQ Series current instrument transformers are designed for electric power systems of 50/60Hz rated frequency and rated voltage 0.66kV. They are used for indoor mounting.


  • The Current Transformers Are Made According To IEC-185 Standard.
  • Class Of Accuracy: 1.0 (see table)
  • Rated Voltage: 600V (see table)
  • Rated Sec. Current 5A(or 1A on reque.
  • Security Factor: FS5
  • Working Temperature Range: ABS plastic case, toally enclosed, built-in cover, and several ampere outputs at secondary side iron plate for fixing metal housing-2 pieces-1, iron bar and acrew for fixing copper bar-3 pieces.


  • Current measurement, monitoring and piotection for electrical wiring and equipment.
  • Current and power measurement for electric motors,lighting,air compressor,heating and ventilation system,air-condition equipment and automation-control system.
  • Current,power and energy monitoring device.
  • Relay protection device.
Electrical Parameter Mechanical Parameter
Frequency 50/60Hz Case PC/UL94-V0
Rated Input 1A-5000A Bobbin PBT
Measuring range 5%In-120%In Core Silicon steel
Rated Output 1A,5A Construction Screw
Ratio Voltage 0.72KV (AC) Operating Temp -25℃~+75℃
Dielectric strength 3.0KV/1mA/1min Operating Humidity ≤85%
Insulation Resistance DC500V/100MΩ min Output Connection Terminal
Model Primary /secondary Busbar Hole Dimension Rated Burden (VA) Class Rated Voltage Rated Frequency
NSQ-30 30/5A-300/5A 30*10mm 1.5-5 0.5/1.0 0.72KV 50/60Hz
NSQ-40 50/5A-400/5A 40*10mm 1.5~10 0.5/1.0 0.72KV 50/60Hz
NSQ-55 100/5A~600/5A 55*10mm 1.5~10 0.5/1.0 0.72KV 50/60Hz
NSQ-85 600/5A-1600/5A 60*10mm 1.5~10 0.5/1.0 0.72KV 50/60Hz
NSQ-125 800/5A-3000/5A 100*10mm 15 0.5/1.0 0.72KV 50/60Hz


NSQ Type Current Transformer-heyi
79 87 42 30 22 66
79 87 42 41 30 66
103 113 42 60 47 66
151 166 45 101 71 70
192 212 45 126 126 70

Install Method

NSQ Type Current Transformer-heyi

Accuracy Test

NSQ Type Current Transformer-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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