Nanocrystalline cores
Rapidly detects ground faults to prevent electrical accidents.
Engineered for maximum reliability, our GFCI cores provide high linearity and stable performance across extreme temperature ranges.
Nano-crystalline cores for Ground Fault Circuit Interrupters (GFCIs) are available in toroidal and custom sport-shaped designs, ideal for detecting leakage currents. They offer high linearity, low temperature sensitivity, and stable magnetic performance across a wide temperature range. Available in sizes ranging from 10 mm to over 300 mm outer diameter, these cores are optimized for precise and reliable current sensing in leakage breaker applications.
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| Properties | ||
|---|---|---|
| Nanocrystalline cores | Permallloy cores | |
| Saturation magnetic induction Bs（T) | 1.2 | 0.7 |
| Initial Permeability（GS/Oe) | 50000～100000 | 50000～100000 |
| Maximum permeability（GS/Oe） | >300000 | >200000 |
| Remanency Br（T) | 0.1 | 0.4 |
| Coercivity（A/m) | <1.6 | <0.8 |
| Density（g/cm3) | 7.3 | 8.8 |
| Stacking factor | >0.75 | >0.88 |
| Specifications and electric parameters | ||
|---|---|---|
| Core size | Finished size | AC performance 1 |
| 9.1×12.1×3.8 | 7.8×13.4×5.0 | 0.058-0.088@24.7mA |
| 9.5×12.8×3.2 | 7.0×14.6×4.8 | 0.05-0.08@24.6mA |
| 8.9×12.9×16.7 | 6.7×14.9×19.3 | 1.0-1.7@30mA |
| 10×17×20 | 7.9×19.2×22.5 | ≥1.9@45mA |
| 11.5×18.5×16.7 | 10.0×22.0×19.3 | 1.19-1.78@33.3mA |
| 14×19×3.2 | 12.3×21.5×5.4 | 0.07-0.12@22.5mA |
| 15×18.6×4.5 | 13.3×20.6×6.6 | 0.06-0.09@24.6mA |
| 14×22×16.7 | 11.8×24.2×19.3 | ≥1.9@70mA |
| 8.9/12.9*17 | - | 1.4-2@30mA |
| 9/13.2*17 | - | 1.34-2.1@37mA |
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Pioneering cutting-edge technology to develop reliable, high-performance magnetic components and engineering solutions.
