Chint NB1-63B1P63 SP Type B MCB 63A 6kA

The NB1-63B1P63 is a single-pole miniature circuit breaker (MCB) from the Chint NB1-63 series, designed to protect electrical circuits against overloads and short circuits. It is rated at 63A with a Type B tripping curve, making it suitable for predominantly resistive loads with low inrush current.

Part of the widely used NB1-63 modular DIN-rail range, it is commonly installed in distribution boards for domestic, commercial, and light industrial electrical systems.

Key Features

• 1-pole (1P) miniature circuit breaker
• 63A rated current
• Type B tripping curve (fast magnetic trip for low inrush loads)
• 6kA breaking capacity
• DIN rail mounted (1 module width)
• Protection against overload and short circuit faults
• Manual ON/OFF switching with clear position indication
• Complies with IEC/EN 60898-1 standards