split core Current Transformer HK type

Split core current transformer HK Series is HEYI Electrical current transformer manufacturer newly developed products and the split core CT are designed in particular for esay installation, the quick release button makes the ct the most convenient to fit around cables without cutting off the circuitry. HK split core current transformer has advantages of bigger capacity and bigger mounting hole size, could be used in more power applications.


Open type current transformers advantages:

1. Convenient installation: Due to its open structure, it is not necessary to pass the wire into the inside of the transformer, but only to pass it through the center hole for installation, making installation more convenient.

2. High protection level: The open type current transformer can provide a protection level of up to IP68, which can protect the equipment from the impact of harsh environments.

3. Simple maintenance: Due to its open architecture, the maintenance process is also very simple. If maintenance is required, simply remove the wires and the transformer can be opened to facilitate maintenance and replacement of internal components.

4. High accuracy: The sensors inside the open type current transformer are more accurate, allowing for more accurate measurement of current, improving the stability and reliability of the entire power system.


5. Strong scalability: Due to its open architecture, open type current transformers can be expanded and upgraded as needed, not limited by space and size, and are more flexible.


  • 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 50-400Hz Case PC/UL94-V0
Rated Input 5A-5000A Bobbin PBT
Measuring range 10%In-120%In Core Silicon steel
Rated Output 0-5A Internal structure Epoxy
Ratio ≤ ± 0.5% Construction Tie
Phase angle ≤ ±30min Operation Temp -25℃~+75℃
Dielectric strangth 2.5KV/1mA/1min Operating Humidity ≤85%
Insulation Resistance DC500V/100MΩ min Output Connection Terminal
MODEL Ratio Burden(VA)
class:0.5 class:1.0
HK-23 100/5A / 2.5
150/5A / 2.5
200/5A 2.5 5
250/5A 5 5
300/5A 5 5
400/5A 5 5
MODEL Ratio Burden(VA)
class:0.5 class:1.0
HK-58 250/5A / 2.5
300/5A 2.5 5
400/5A 5 5
500/5A 5 5
600/5A 5 10
800/5A 10 10
1000/5A 10 10
1200/5A 10 10
1500/5A 10 10
1600/5A 10 10
MODEL Ratio Burden(VA)
class:0.5 class:1.0
HK-812 500/5A 2.5 5
600/5A 2.5 5
800/5A 5 5
1000/5A 10 10
1200/5A 10 10
1500/5A 10 10
1600/5A 10 10
2000/5A 15 15
2500/5A 15 15
3000/5A 15 15
4000/5A 15 15
MODEL Ratio Burden(VA)
class:0.5 class:1.0
HK-816 1000/5A 10 15
1200/5A 10 15
1500/5A 10 15
1600/5A 10 15
2000/5A 15 20
2500/5A 15 25
3000/5A 15 30
4000/5A 15 30
5000/5A 15 30
6000/5A 15 30

    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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