Why Choose the Chint NB1-63D4P25 Miniature Circuit Breaker?
The Chint NB1-63D4P25 is a dependable four-pole miniature circuit breaker (MCB) designed to provide reliable overload, short circuit and isolation protection for low-voltage electrical installations. As part of the trusted Chint NB1-63 series, it is engineered to deliver long-lasting performance in commercial, industrial and OEM applications.
Featuring a D curve tripping characteristic, this MCB is ideal for circuits supplying motors, transformers, compressors and other equipment with high inrush currents. Its compact modular design allows fast installation onto standard DIN rails within distribution boards and control panels.
With a 25 A rated current, 6 kA breaking capacity and a four-pole configuration, the NB1-63D4P25 provides dependable protection and simultaneous isolation of all live conductors in three-phase electrical systems.
Key Advantages
- Reliable overload and short circuit protection.
- 25 A rated current for demanding electrical installations.
- D curve tripping characteristic for high inrush current loads.
- 6 kA breaking capacity for dependable fault interruption.
- Four-pole design provides complete circuit isolation.
- Compact DIN rail mounting simplifies installation.
- Suitable for commercial, industrial and OEM applications.
Key Features
- Chint NB1-63 miniature circuit breaker series.
- 25 A rated current.
- D curve tripping characteristic.
- 4 pole (4P) configuration.
- 6 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 High Inrush Current Circuits
Miniature circuit breakers automatically disconnect electrical circuits during overload and short circuit conditions, helping to protect electrical wiring, connected equipment and personnel. The NB1-63D4P25 combines thermal and magnetic tripping mechanisms to deliver fast and dependable protection.
Its D curve characteristic is specifically designed for applications with high starting currents, making it an excellent choice for motors, transformers, compressors and other inductive equipment while helping to minimise nuisance tripping during normal operation.
Typical Applications
- Industrial distribution boards.
- Motor control circuits.
- Transformer protection.
- Commercial electrical installations.
- OEM machinery and equipment.
- Three-phase control panels.
