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nb1-63dc-4p-c50 chint 50a 4 pole c curve dc1000v (solar) type miniture circuit breaker
Chint NB1-63DC-4P-C50 50A four pole Type C DC miniature circuit breaker rated at 1000V DC with 6kA breaking capacity for photovoltaic, battery storage and industrial DC distribution systems.
£27.12
Why Choose the Chint NB1-63DC-4P-C50 DC Miniature Circuit Breaker?
The Chint NB1-63DC-4P-C50 is a high-performance four pole Type C DC miniature circuit breaker (MCB) engineered to provide dependable overload and short circuit protection for high-voltage direct current electrical systems. As part of the trusted Chint NB1-63DC Series, it is designed for photovoltaic installations, battery energy storage systems, telecommunications equipment, EV charging infrastructure and industrial DC power distribution.
Featuring a 50A current rating, Type C tripping characteristic and a 1000V DC rated voltage, the NB1-63DC-4P-C50 is ideal for protecting high-voltage DC circuits where reliable fault interruption and safe isolation are essential. Its compact DIN rail mounted design enables quick installation within PV combiner boxes, DC switchboards, battery enclosures and industrial electrical panels.
Manufactured in accordance with IEC/EN 60947-2, this Chint DC circuit breaker automatically disconnects the circuit during overload or short circuit conditions, helping protect wiring, equipment and connected loads. The NB1-63DC Series offers a 6kA breaking capacity, long mechanical life and dependable performance in demanding renewable energy and industrial environments.
Key Advantages
- 50A DC miniature circuit breaker for dependable circuit protection.
- Four pole Type C configuration for high-voltage DC systems.
- 1000V DC rated voltage suitable for photovoltaic installations.
- 6kA breaking capacity for reliable fault interruption.
- Protects against overloads and short circuits.
- Compact DIN rail mounting design for straightforward installation.
Key Features
- Chint NB1-63DC Series DC miniature circuit breaker.
- 50A rated current.
- Four pole (4P) configuration.
- Type C tripping characteristic.
- 1000V DC rated voltage.
- 6kA short circuit breaking capacity.
- Manufactured to IEC/EN 60947-2.
- DIN rail mounting with cable and busbar connection compatibility.
Reliable Protection for High Voltage DC Systems
Direct current installations require protection devices specifically engineered to interrupt DC fault currents safely. The Chint NB1-63DC-4P-C50 provides reliable overload and short circuit protection while helping safeguard photovoltaic arrays, battery energy storage systems, telecommunications equipment and industrial DC power installations.
Its Type C tripping characteristic is suitable for circuits with moderate inrush currents, while the four pole configuration provides safe isolation for high-voltage DC applications operating up to 1000V DC.
Typical Applications
- Solar photovoltaic systems.
- PV combiner boxes.
- Battery energy storage systems.
- EV charging infrastructure.
- Telecommunications power systems.
- Industrial DC distribution panels.
Technical Specifications
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| Voltage | 1000 V DC | |
|---|---|---|
| Current | 50 A | |
| Phase | Three Phase | |
| Poles | 4-pole | |
| Device Type | MCB | |
| Trip Curve | C curve | |
| Breaking Capacity | 6 kA | |
| Manufacturer | Chint | |
| Series | NB1-63DC | |
| Model | NB1-63DC-4P-C50 | |
| Product type | DC Miniature Circuit Breaker (MCB) | |
| Current rating | 50A | |
| Number of poles | 4 Pole | |
| Tripping curve | Type C | |
| Rated voltage | 1000V DC | |
| Breaking capacity | 6kA | |
| Standard | IEC/EN 60947-2 | |
| Mounting type | 35 mm DIN rail | |
| Protection rating | IP20 | |
| Mechanical life | 20,000 operations |
Frequently Asked Questions
What is the Chint NB1-63DC-4P-C50 used for?
The NB1-63DC-4P-C50 protects high-voltage DC electrical circuits against overloads and short circuits in photovoltaic, battery storage, telecommunications and industrial DC power systems.
What current rating does this DC MCB have?
This model has a 50A current rating.
What voltage is the NB1-63DC-4P-C50 rated for?
The four pole version is rated for 1000V DC.
What does the Type C tripping characteristic mean?
Type C circuit breakers trip between approximately 7 and 10 times their rated current, making them suitable for DC circuits with moderate inrush currents.
Where is this DC circuit breaker typically installed?
It is designed for DIN rail installation inside PV combiner boxes, battery storage systems, DC distribution boards and industrial electrical control panels.
Trusted for DC Circuit Protection
Chint NB1-63DC miniature circuit breakers are trusted by renewable energy installers, electrical contractors and panel builders to provide dependable overload and short circuit protection across modern high-voltage DC power systems.
