As a professional electrical safety manufacturer, YUANKY launches the KNL6-63 Series Residual Current Circuit Breaker (RCCB), a premium safety device designed to protect personnel and electrical systems from electric shocks and fire hazards caused by leakage currents. This 2-pole RCCB features a rated operational voltage of 230/400V, nominal current up to 63A, and a short-circuit breaking capacity of 10kA, delivering stable and reliable performance for global industrial, commercial and residential applications.

Based on Kirchhoff’s Current Law, the KNL6-63 operates with an internal Core Balance Current Transformer (CBCT) to monitor the balance of current in live and neutral wires. Under normal conditions, incoming and outgoing currents are equal; when a leakage fault occurs (e.g., damaged insulation or accidental contact), the current imbalance triggers the device, which trips instantly within ≤0.1s (≤0.04s at 5×IΔn) to cut off power. A built-in test button allows easy functionality verification, ensuring long-term reliable operation.

Compliant with international standards including IEC 61008, CE and SIRIM, the KNL6-63 supports multiple sensitivity levels (30mA, 100mA, 300mA, 500mA) to meet diverse market requirements. Its compact modular design facilitates easy installation in distribution boards, while high-quality insulation materials ensure durability in harsh environments. Widely applied in residential complexes, commercial buildings, industrial machinery, power distribution cabinets and solar systems, it is a trusted safety solution for global partners, helping them meet regional safety standards and gain market access.