Split Current Transformer Core Silicon Steel Core
Sep 18, 2025
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Split Current Transformer Core Silicon Steel Core Product Description
Material:
CRGO silicon steel with characteristics of low iron-loss and high permeability in thickness of 0.23mm, 0.27mm.
Characteristic:
Cores are wound by our independently-developed winding machine and are high vacuum heat treated. Asymmetric cutting is acceptable. They come in shapes of UI, UU, and toroidal with precise dimensions.
Split Current Transformer Core Application:
Mainly used in the current transformers for electricity acquisition and detection. Square and round hole shapes are available.


Split Current Transformer Core Silicon steel core can be customised
| size ( d * D * B )(mm) |
Cross-sectional area(mm²) |
weight(g) |
volt-ampere characteristic(mV) (1A excitation current output) |
Magnetic circuit length(mm) |
| 184*226*60 | 1260 | 7096 | 7.6 | 643.7 |
| 52.5*90.5*64 | 1216 | 2388 | 27.2 | 224.5 |
| 57*89*58 | 928 | 1861 | 17.3 | 229.2 |
| 55*81*68 | 884 | 1651 | 29.3 | 213.5 |
| 59*89*53 | 795 | 1616 | 19.8 | 232.4 |
| 55*87*40 | 640 | 1248 | 19.8 | 222.9 |
| 60*88*40 | 560 | 1139 | 13.8 | 232.4 |
| 41*72*25 | 387.5 | 602 | 14.1 | 177.4 |
| 66*91*30 | 375 | 809 | 9.9 | 246.5 |
| 59*79*30 | 300 | 569 | 7.3 | 216.7 |
| 62*82*30 | 300 | 593 | 8.8 | 226.1 |
| 59*77*30 | 270 | 504 | 7.3 | 213.5 |
| 59*85*12 | 156 | 309 | 3.6 | 226.1 |
| 55*75*15 | 150 | 268 | 3.3 | 204.1 |
| 61*85*12 | 144 | 289 | 2.1 | 229.2 |
| 60*82*11 | 121 | 326 | 3.9 | 222.9 |
| 43*57*15 | 105 | 144 | 4.3 | 157.1 |
| 24*35*10 | 55 | 45 | 3.1 | 92.6 |
Split Current Transformer Core Silicon Steel Core Advantages:
- High accuracy
Adopting the appropriate current transformer structure and the compensation-control method, the split current transformer can achieve very high accuracy and provide protection for accurate measurement.
- Wide measurement range
The split current transformer core has a gap which broadens the unsaturated region of the magnetization. Therefore, the maximum current measured by the split current transformer is much larger than that measured by the current transformer with a closed structure. For example, the split current transformer core has a wider measuring range.
- Non-invasive
Because of the open-close structure, the high precision split current transformer can be clamped directly on the measured conductor, and then the non-invasive measurement can be carried out without cutting off the circuit.
- Strong anti-saturation ability
The split current transformer core has a gap which strengthens the saturation magnetic flux density of the core. Besides, the influence of residual magnetism on the split current transformer is lower than that on the closed structure current transformer. These make the split current transformer a strong anti-saturation capability.
GNEE Featured Products
Gnee provides premium iron cores to the world. Our cores can be selected in a wide range of materials, shapes, applications, manufacturing techniques, etc., to meet customers' diverse demands. Explore our wide product range now~
Silicon steel core Manufacturing Process

1. Raw Material Sourcing

2. Slitting

3. Punching

4. Laminating

5. Core Forming

6. testing
GNEE EC
Founded in 2008 and located in Anyang in China, Gnee Electric is a high-tech enterprise specializing in researching and manufacturing iron core products.
The company currently occupies over 20,000 square meters and employs more than 200 people, including over 80 professionals. After more than 18 years of development, we have built our own magnetic material production base and independently develope, produce, and sell various kinds of iron cores. The common types include silicon steel cores, motor cores, transformer cores, toroidal iron cores, special-shaped cores, custom cores, and others. Our cores are widely applied in different sectors including transformers, motors, mutual inductors, voltage stabilizers, welding machines, magnetic amplifiers, and instrumentation, providing diverse core solutions to global customers.

30+
Types of Products
18k+
Happy Clients
Why Choose GNEE EC?
GNEE EC was founded in 2008, which is a National High-tech Enterprise & Famous Brand Enterprise in China, developing into a professional manufacturer and supplier of high-quality iron cores.
18+
Over 18 years of success in the iron core industry;
National High-tech Enterprise & Famous Brand Enterprises in China;
200+
Over 200 employees;
The R&D team has more than 80 experienced engineers and the production team has more than 100 skilled staffs;
35+
Annual turnover up to 35 million dollor per year;
Owns many sets of highly automatic winding, annealing, and assembling machines;
1,000+
Over 1000 customers in domestic and overseas markets;
core Products are exported to more than 70 countries in the world;
Gnee Iron Core Factory Overview






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