CHINT 179920

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✅ CHINT NB1-63H C63 Miniature Circuit Breaker – 4P, 63A, C Curve, 10kA Breaking Capacity Description (English): The CHINT NB1-63H C63 is a high-performance 4-pole miniature circuit breaker (MCB) engineered for three-phase + neutral protection in demanding applications. With a 63A rated current and a C-curve tripping profile, it is ideal for heavy electrical loads such as industrial machines, distribution feeders, HVAC systems, and large control panels. This MCB features a short-circuit breaking capacity of 10kA at 400V AC, ensuring reliable fault protection. It complies with both EN/IEC 60898-1 and EN/IEC 60947-2 standards, making it suitable for use in residential, commercial, and industrial environments. The breaker is equipped with a manual toggle handle, VisiTrip indicator for fast fault identification, and a VisiSafe strip for clear visual disconnection. It fits standard DIN rail installations and occupies 8 modules (72mm width). Built to withstand tough operating conditions, it has a rated insulation voltage of 500V, impulse withstand voltage of 6kV, and operates from -35°C to +70°C. It offers a long service life with 20,000 mechanical and 10,000 electrical operations. Specifications (English): Model: NB1-63H Poles: 4P Rated Current [In]: 63A Curve Type: C Breaking Capacity: 10kA at 400V AC (EN/IEC 60898-1) Insulation Voltage [Ui]: 500V AC Impulse Voltage [Uimp]: 6kV Standards: EN/IEC 60898-1, EN/IEC 60947-2 Mounting: DIN rail, 8 pitch (72mm width) Protection Class: IP20 (IP40 in enclosure) Operating Temperature: -35°C to +70°C Mechanical Life: 20,000 cycles Electrical Life: 10,000 cycles Tightening Torque: 2 Nm Wire Capacity: 1–25mm² (rigid), 1–16mm² (flexible)