Why Choose the Chint NB1-63CH4P63 Miniature Circuit Breaker?
The Chint NB1-63CH4P63 is a high performance 4 pole miniature circuit breaker (MCB) designed to provide dependable overload and short circuit protection for commercial, industrial and OEM electrical installations. As part of the proven Chint NB1-63H Series, this model features a 10 kA breaking capacity, making it suitable for installations where higher prospective fault currents may be encountered.
Featuring a 63 A rated current and a C curve tripping characteristic, the NB1-63CH4P63 is ideal for protecting three phase distribution circuits, switchboards, machinery and electrical equipment with moderate inrush currents. Its four pole design enables simultaneous isolation of all conductors, improving electrical safety during maintenance and fault conditions.
Designed for installation on a standard 35 mm DIN rail, the NB1-63CH4P63 combines compact dimensions, long operational life and reliable protection, making it an excellent choice for electrical contractors, panel builders and industrial maintenance engineers.
Key Advantages
- Compact 4 pole miniature circuit breaker.
- 63 A rated current for demanding commercial and industrial applications.
- C curve tripping characteristic suitable for mixed resistive and inductive loads.
- 10 kA breaking capacity for dependable fault protection.
- Provides reliable overload and short circuit protection.
- Quick DIN rail mounting for straightforward installation.
- Suitable for commercial, industrial and OEM electrical systems.
Key Features
- Manufacturer: Chint
- Series: NB1-63H
- Model: NB1-63CH4P63
- 4 pole configuration.
- 63 A rated current.
- C curve trip characteristic (5 to 10 × In).
- 10 kA rated breaking capacity.
- Suitable for AC 50 / 60 Hz systems.
- Compact DIN rail mounted design.
- Compatible with selected NB1 accessories.
Reliable Protection for Electrical Installations
The Chint NB1-63CH4P63 automatically disconnects electrical circuits whenever overload or short circuit conditions occur, helping to protect wiring, electrical equipment and connected machinery from damage while improving system safety and reliability.
Its C curve characteristic makes it particularly suitable for circuits supplying motors, distribution boards, control equipment and general power circuits where moderate inrush currents are expected. The four pole configuration enables complete isolation across three phase electrical systems whenever required.
Typical Applications
- Commercial electrical distribution boards.
- Industrial control panels.
- Three phase power distribution systems.
- Machine control equipment.
- OEM machinery.
- Building services installations.
- Electrical switchboards.
