Nanocrystalline cores
GFCI (Ground Fault Circuit Interrupter) Cores
Rapidly detects ground faults to prevent electrical accidents.
High Sensitivity Nano Crystalline GFCI Cores for Leakage Detection
Engineered for maximum reliability, our GFCI cores provide high linearity and stable performance across extreme temperature ranges.
Precision Nano Crystalline Cores for GFCI Applications
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.
Key Features
1
High initial permeability
2
High output voltage with compact core dimensions
3
Low core loss
4
Excellent tolerance to high current impulses
5
Accurate and reliable high-current tripping performance
6
High Curie temperature
7
Stable performance across –55°C to +130°C
8
Competitive pricing for OEM applications
Technical Specifications
| 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 Electrical Parameters
| 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 |
Applications
1
Electronic Leakage Circuit Breakers
2
Electromagnetic Leakage Circuit Breakers
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