Inverter welders run at 20–100 kHz, where nanocrystalline cores cut transformer weight by 50% or more versus silicon steel and keep temperature rise manageable at high duty cycles. Epoxy coating provides the insulation needed for primary windings.
Output current, duty cycle, switching frequency, core shape (toroidal or C-type), and winding window.
NC-METER1K107 Fe-based nanocrystalline cores for built-in current transformers in smart single- and three-phase meters, meeting class 0.1 / 0.05 accuracy.
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NC-CCUTHalf-cut, epoxy-coated C-type cores with ≤ 0.02 mm ground gap — assemble the winding first, no threading needed.
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NC-RCDClosed-ring nanocrystalline cores for AC / A / B type residual current detection, sensitive down to 10 mA leakage.
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