Name: NB1-63DC DC Circuit Breaker
Brand: Chint

NB1-63DC DC Circuit Breaker

The NB1-63DC Miniature Circuit Breaker is specifically engineered for direct current (DC) circuits, providing reliable protection against overload and short-circuit faults in critical DC applications. Compliant with IEC/EN 60947-2 standards, this MCB is essential for safeguarding systems in solar photovoltaic (PV) installations, energy storage systems, communication equipment, and other specialized DC power distribution needs. Its robust design ensures enhanced safety and stable operation in demanding environments.

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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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NB1-63DC DC Circuit Breaker

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NB1-63DC DC Circuit Breaker

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