Why Choose the Chint NB1-63DH4P50 Miniature Circuit Breaker?
The Chint NB1-63DH4P50 is a dependable 4 pole miniature circuit breaker (MCB) engineered to provide reliable overload and short-circuit protection for low-voltage electrical installations. As part of the trusted Chint NB1 Series, this MCB is designed for commercial, industrial and OEM applications where safe and consistent circuit protection is essential.
Featuring a 50 A rated current, D curve tripping characteristic and 10 kA breaking capacity, the NB1-63DH4P50 is ideal for protecting circuits supplying equipment with high inrush currents, including motors, transformers, compressors and other inductive loads. Its four-pole configuration enables simultaneous protection and isolation of all live conductors within three-phase systems.
The compact DIN rail mounted design allows quick installation inside distribution boards, switchgear assemblies and control panels. Manufactured to recognised international standards, the NB1-63DH4P50 delivers dependable performance throughout demanding commercial and industrial electrical installations.
Key Advantages
- Compact 4 pole miniature circuit breaker for three-phase electrical systems.
- 50 A rated current for dependable circuit protection.
- D curve ideal for applications with high inrush current.
- 10 kA breaking capacity for enhanced fault protection.
- Provides overload protection, short-circuit protection, switching and electrical isolation.
- DIN rail mounting for fast installation into control panels and distribution boards.
Key Features
- Chint NB1 Series miniature circuit breaker.
- 4 pole configuration.
- 50 A rated current.
- D curve tripping characteristic.
- 10 kA rated breaking capacity.
- Designed for AC 50 / 60 Hz electrical systems.
- DIN rail mounting.
- Suitable for circuit protection, switching and safe isolation.
Reliable Protection for Industrial Power Distribution
The Chint NB1-63DH4P50 automatically disconnects electrical circuits when overloads or short-circuit faults occur, helping to protect cables, switchgear and connected equipment from electrical damage. Its dependable thermal and magnetic trip mechanism ensures reliable protection across demanding industrial and commercial applications.
The D curve characteristic is specifically intended for circuits with higher starting currents, making this MCB ideal for motors, transformers, compressors and other inductive loads where nuisance tripping must be minimised.
Typical Applications
- Industrial control panels.
- Three-phase distribution boards.
- Motor control centres.
- Transformer protection circuits.
- Commercial electrical installations.
- OEM machinery and automation systems.
