✅ CHINT 197961 – NB1L-40 RCBO – 1P+N, 40A, C Curve, 300mA Sensitivity, 6kA Breaking Capacity Description (English): The CHINT NB1L-40 RCBO is a heavy-duty protective device designed to safeguard high-load single-phase systems. With a rated current of 40A, C-type tripping curve, and 300mA leakage sensitivity, this 1P+N unit provides dependable protection against overloads, short circuits, and insulation faults that may lead to fire hazards. Ideal for industrial-grade and commercial installations, it offers a short-circuit breaking capacity of 6kA and detects AC-type residual currents. The RCBO operates at 50/60Hz, conforms to IEC 61009-1, and integrates thermal-magnetic tripping with high-sensitivity leakage detection, ensuring equipment and user safety in demanding applications. Specifications (English): Model: NB1L-40 Part Number: CHINT 197961 Poles: 1P+N Rated Current [In]: 40A 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