Nanocrystalline Core for  Switchgear
Nanocrystalline Core for Switchgear

Nanocrystalline Core for Switchgear

Switchgears, which provides protection to electrical appliances and control the sources, are important in power systems. By comparison with the conventional silicion steel or permalloy cores, Xianyu nanocrystalline cores have the many advantages, such as high magentic permeability, high Bs value. Thus, the current transformers made by nanocrystalline cores are very suitable for LV, MV switchgear applied in power transmission and distribution system.

We provide toroidal nanocrystalline cores, special shape nanocrystalline cores, like oval, rectangular or oblong cores are also available. We can assist in custom design of nanocrystalline cores and provide samples within a couple of days.


  • ID=110mm, OD=145mm, H=20mm (nominal)
  • Le: 40.04cm, Ac: 2.63cm2, weight: 1000g
  • AL value ≥96μH@1kHz/0.3V
  • Suit for metal clad or metal enclosed LV/MV switchgear


Part NumberCS110-145-20A
DescriptionNanocrystalline Core for Switchgear
MaterialFe-based 1k107 Nanocrystalline
Finish TypeStainless Steel Box, Epoxy Filling
Saturation Magnetic Induction (Bs)1.25 T
Crystallization Temperature (Tx)500 °C
Curie Temperature (Tc)570 °C
Density (ρ)7.20 g/cm3
Resistivity130 μΩ.cm
Filling Coefficient≥ 0.75
Mean Magnetic Path (Le)40.04 cm
Net Area (Ac)2.63 cm2
AL Value≥ 96 μH
Test Conditions1 kHz / 0.3 V @ 1Ts
WeightApprox. 1000 g
Accept CustomizedYes


CS110-145-20A, Nanocrystalline Core for  Switchgear
CS110-145-20A, Nanocrystalline Core for Switchgear
Dimensions (mm)IDODHT
Nominal Size110±0.5145±0.520±0.2
Finish Size105±2.0150±2.025±2.0

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Nanocrystalline Core for Switchgear
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