Product Description
1K107 nanocrystalline toroidal core for current transformers (CT) and current sensors serves a fast-growing application (~22% share driven by smart meters, EV power systems and grid monitoring). Ultra-high permeability and low hysteresis give excellent accuracy and linearity. High saturation flux density (~1.25 T) handles a wide current range without saturation. Excellent temperature stability ensures measurement accuracy.

Physical Properties (1K107 CT core)
Saturation flux density: ~1.25 T
Permeability @10kHz: ≥80,000
Curie temperature: ~560°C
Density: 7.2 g/cm³
Low core loss and low coercivity

Core Sizes
Custom toroidal sizes (OD × ID × Height) per application. Ratio accuracy and AL value available on request.

Applications
• Smart electricity meters
• Protection relays and circuit breakers
• Residual current devices (RCD / RCCB)
• EV charging current sensing
• Industrial monitoring and grid instrumentation
• Current sensors for power electronics

Why Choose Us
High-permeability nanocrystalline CT cores with excellent ratio accuracy and linearity. Custom sizes, AL value and winding support. Automotive and precision grades available.

Quality Control
Permeability, AL value, accuracy class, dimension and appearance inspected per batch; MTC available.