Why Choose the Chint NB1-63BH4P50 Miniature Circuit Breaker?
The Chint NB1-63BH4P50 is a premium four-pole miniature circuit breaker (MCB) engineered to provide dependable overload, short circuit and isolation protection for low-voltage electrical installations. As part of the robust Chint NB1-63H series, it delivers an enhanced 10 kA breaking capacity, making it suitable for demanding commercial, industrial and OEM applications.
Featuring a B curve tripping characteristic, this MCB is designed for circuits with relatively low inrush currents, including lighting, heating, control equipment and resistive loads. Its compact modular construction enables quick installation into switchboards, distribution boards and industrial control panels using a standard DIN rail.
With a 50 A rated current, 10 kA breaking capacity and a four-pole configuration, the NB1-63BH4P50 provides reliable circuit protection while simultaneously isolating all live conductors in three-phase electrical systems.
Key Advantages
- Reliable overload and short circuit protection.
- 50 A rated current for commercial and industrial electrical circuits.
- B curve tripping characteristic for sensitive circuit protection.
- 10 kA breaking capacity for enhanced fault interruption.
- Four-pole design provides complete circuit isolation.
- Compact DIN rail mounting for straightforward installation.
- Suitable for commercial, industrial and OEM control panel applications.
Key Features
- Chint NB1-63H miniature circuit breaker series.
- 50 A rated current.
- B curve tripping characteristic.
- 4 pole (4P) configuration.
- 10 kA rated breaking capacity.
- Provides overload, short circuit and isolation protection.
- Suitable for AC 50/60 Hz electrical systems.
- Compact modular DIN rail mounted construction.
Reliable Protection for Low-Inrush Circuits
Miniature circuit breakers automatically disconnect electrical circuits during overload or short circuit conditions, helping protect wiring, connected equipment and personnel. The Chint NB1-63BH4P50 combines thermal and magnetic trip mechanisms to provide fast, dependable protection for low-voltage electrical installations.
Its B curve characteristic is intended for circuits with relatively low starting currents, making it particularly suitable for lighting systems, heating circuits, resistive loads and commercial electrical distribution where dependable protection is essential.
Typical Applications
- Commercial distribution boards.
- Industrial control panels.
- Lighting installations.
- Heating and resistive load circuits.
- Control and instrumentation systems.
- OEM machinery and automation equipment.
- Three-phase electrical installations requiring four-pole isolation.
