CHINT 179700

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✅ CHINT NB1-63 C16 Miniature Circuit Breaker – 3P, 16A, C Curve, 6kA Breaking Capacity Description (English): The CHINT NB1-63 C16 is a triple-pole miniature circuit breaker (MCB) engineered for safe and reliable protection of three-phase circuits in residential, commercial, and light industrial installations. With a rated current of 16A and a C tripping curve, it is ideal for balanced loads and moderately inductive equipment such as lighting circuits, pumps, and HVAC. This MCB supports a short-circuit breaking capacity of 6kA at 400V AC as per EN/IEC 60898-1 and up to 50kA under EN/IEC 60947-2, ensuring effective protection across all three poles from both overload and short-circuit faults. It is equipped with a toggle mechanism for manual control, a VisiTrip fault indicator for fast diagnostics, and a VisiSafe strip for visible confirmation of full isolation. Its compact width of 54mm (3 DIN pitches) allows quick and neat installation in modular panels. The NB1-63 C16 delivers long-term reliability with 20,000 mechanical cycles and 10,000 electrical cycles. It also features 500V insulation voltage, 6kV impulse withstand voltage, and IP20/IP40 protection when enclosed. Specifications (English): Model: NB1-63 Poles: 3P Rated Current [In]: 16A Curve Type: C Breaking Capacity: 6kA 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, 3 pitch (54mm 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)