✅ CHINT 197941 – NB1L-40 RCBO – 1P+N, 20A, C Curve, 300mA Sensitivity, 6kA Breaking Capacity Description (English): The CHINT NB1L-40 RCBO is a high-performance residual current breaker with overcurrent protection, designed to safeguard circuits with moderate to high current demands. This 1P+N unit is rated at 20A, features a C-type tripping curve, and has 300mA sensitivity—making it ideal for fire protection and equipment insulation fault detection in residential and commercial environments. The device combines overload, short-circuit, and residual current protection in a single module with a 6kA breaking capacity. It detects AC-type leakage currents and is fully compliant with IEC 61009-1 standards. Its thermal-magnetic trip mechanism ensures dependable disconnection, while the residual current function enhances protection against electrical hazards. Specifications (English): Model: NB1L-40 Part Number: CHINT 197941 Poles: 1P+N Rated Current [In]: 20A Curve Type: C Sensitivity Current: 300mA Breaking Capacity: 6kA Frequency: 50/60Hz Standards: IEC 61009-1 Protection Type: Overload, short circuit, residual current (AC) Tripping Mechanism: Thermal-magnetic with leakage detection