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NB1-63DC DC Circuit Breaker
Product Consultation
Final Power Distribution NB1-63DC DC Circuit Breaker
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Final Power Distribution
NB1-63DC C63A 2P-MCB
NB1-63DC C63A 1P-MCB
NB1-63DC C63A 4P-MCB
NB1-63DC C63A 2P-MCB-Front
NB1-63DC C63A-MCB-Side
NB1-63DC C63A 1P-MCB-Front
NB1-63DC C63A 4P-MCB-Front
NB1-63DC C63A 2P-MCB
NB1-63DC C63A 1P-MCB
NB1-63DC C63A 4P-MCB
NB1-63DC C63A 2P-MCB-Front
NB1-63DC C63A-MCB-Side
NB1-63DC C63A 1P-MCB-Front
NB1-63DC C63A 4P-MCB-Front

NB1-63DC DC Circuit Breaker

The CHINT NB1-63DC DC Circuit Breaker provides dependable overload and short-circuit protection for DC systems up to 1000 V and 63 A. Compact and efficient, it is ideal for photovoltaic, energy storage, and communication power applications. With 6 kA breaking capacity and C-curve tripping characteristics, the NB1-63DC ensures fast, stable protection. Built to IEC/EN 60947-2 and RoHS standards, it features dual connection capability for cables or busbars, a long mechanical life, and easy DIN-rail installation.

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Product Information

Name
Size
Release time
Operate
NB1-63DC-MCCB-Catalog.pdf
384.66KB
2025-12-10
Download
Name
Size
Release time
Operate
2105-NB1-63DC-MCB-Manual(EN).pdf
4MB
2024-12-18
Download
Name
Size
Release time
Operate
2408-NB1-63DC-MCCB-REACH Declaration Certificate.pdf
363.47KB
2024-09-22
Download
2206-NB1-63DC-MCCB-EAC Certificate.pdf
618.6KB
2024-09-22
Download
2201-NB1-63DC-MCCB-CE Declaration RoHS Certificate.pdf
837.53KB
2024-09-22
Download
2110-NB1-63DC-MCCB-CE Certificate.pdf
5.65MB
2024-09-22
Download
2110-NB1-63DC-MCCB-TUV Certificate.pdf
5.65MB
2024-09-22
Download
2105-NB1-63DC-MCCB-UKCA Certificate.pdf
102.78KB
2024-09-22
Download
1902-NB1-63DC-MCCB-IRAM Certificate.pdf
1MB
2024-09-22
Download
1705-NB1-63DC-MCCB-EAC Certificate.pdf
358.08KB
2024-09-22
Download
Name
Size
Release time
Operate
NB1-63DC-4P-3D(V1)-MCB-Drawing.igs
51.91MB
2024-09-22
Download
NB1-63DC-2P-2D(V1)-MCB-Drawing.dwg
277.19KB
2024-09-22
Download
NB1-63DC-1P-2D(V1)-MCB-Drawing.dwg
1.06MB
2024-09-22
Download
NB1-63DC-2P-3D(V1)-MCB-Drawing.igs
27.04MB
2024-09-22
Download
NB1-63DC-4P-2D(V1)-MCB-Drawing.dwg
297.57KB
2024-09-22
Download
NB1-63DC-1P-3D(V1)-MCB-Drawing.igs
27.38MB
2024-09-22
Download

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FAQs

 

What is the main purpose of the NB1-63DC DC Circuit Breaker?

It protects DC circuits against overload and short-circuit faults, ensuring stable operation in photovoltaic, battery storage, and communication systems. 

 

What voltage levels does the NB1-63DC support?

It is rated for DC 250 V (1P), DC 500 V (2P), and DC 1000 V (4P) systems, offering flexibility across low- and high-voltage DC applications. 

 

What is the breaking capacity of this circuit breaker?

The NB1-63DC offers a 6 kA short-circuit breaking capacity, ensuring reliable interruption even under high fault conditions. 

 

How long is its service life?

It delivers a mechanical life of 20,000 cycles and an electrical life of 1,500 cycles, ensuring long-term dependability in demanding environments. 

 

Can it operate in high-temperature or high-altitude environments?

Yes. The NB1-63DC works from −35 °C to +70 °C and up to 2000 m altitude. Derating curves are available for extended altitude or higher ambient temperatures.

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