Chint NB1-63B1P50 SP Type B MCB 50A 6kA

The NB1-63B1P50 is a single-pole miniature circuit breaker (MCB) from the Chint NB1-63 series, designed to provide reliable protection for electrical circuits against overloads and short-circuit faults. With a 50A current rating and Type B tripping curve, it is suited to circuits with low inrush current such as resistive loads.

It is commonly installed in distribution boards for domestic, commercial, and light industrial applications, offering dependable DIN-rail mounted protection in modular electrical systems.

Key Features

• 1-pole (1P) miniature circuit breaker
• 50A rated current
• Type B tripping curve (3–5× In magnetic trip range)
• 6kA breaking capacity
• DIN rail mounted for easy installation
• Clear ON/OFF position indication
• Thermal-magnetic protection for overload and short circuit faults
• Complies with IEC/EN 60898-1 standards