✅ CHINT 169301 – NM8L 315A 4P RCCB 315A rated, 4-pole residual current MCCB with 50kA breaking capacity and 100% Ics. Built on the NM8L-250 frame using a 250A module, it features X1-type earth leakage protection (0.05 / 0.1 / 0.2 / 0.5A), thermal-magnetic adjustable trip unit, and configurable T1 delay. 🔹 Description (English): The CHINT 169301 – NM8L-250S/250/4 X1 T1 is a heavy-duty residual current MCCB designed to handle high-power industrial loads. With a rated current of 315A and robust fault-handling capabilities (50kA Icu, 100% Ics), this unit offers reliable protection against overloads, short circuits, and leakage currents. It includes X1-type earth leakage detection with selectable sensitivity levels, a thermal-magnetic adjustable trip unit, and T1 programmable time delay. The device is constructed on the NM8L-250 frame with a 250A module to ensure optimal durability and performance. 🔹 Key Features: • Rated current: 315A • Breaking capacity: 50kA (Icu), 100% Ics • Residual protection: X1 (0.05 / 0.1 / 0.2 / 0.5A) • Adjustable thermal-magnetic trip unit • Delay settings: T1 (0.1 / 0.3 / 0.5 / 1s) • 4P configuration for 3-phase + neutral • Frame: NM8L-250 with 250A module • Suitable for industrial distribution systems • Mounting: DIN rail or panel • Compliance: IEC 60947-2 • Certifications: CCC, CE, KEMA 🔹 Technical Specifications (English): Parameter Value Model NM8L-250S/250/4 X1 T1 Part Number CHINT 169301 Rated Current 315A Number of Poles 4P Breaking Capacity Icu: 50kA, Ics: 100% Residual Protection X1: 0.05 / 0.1 / 0.2 / 0.5 A Trip Unit Type Thermal-Magnetic (Adjustable) Break Time Settings T1: 0.1 / 0.3 / 0.5 / 1 s Frame Size NM8L-250 (250A module) Mounting DIN rail or panel Standards IEC 60947-2 Certifications CCC, CE, KEMA