Name: NB1-63H Miniature Circuit Breaker
Brand: Chint

NB1-63H Miniature Circuit Breaker

The CHINT NB1-63H Miniature Circuit Breaker (MCB) provides dependable protection against overload and short-circuit faults in AC circuits up to 415 V. Engineered for residential, commercial, and industrial applications, it features a 10 kA breaking capacity, thermomagnetic trip, and multiple tripping curves for versatile use. With a compact modular design, IP20 protection, and compliance with IEC/EN 60898-1 standards, the NB1-63H ensures safe, efficient, and durable circuit control in modern power distribution systems.

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FAQs

What is the primary function of the NB1-63H Miniature Circuit Breaker?

The NB1-63H MCB is designed to protect electrical circuits from overload and short-circuit faults, ensuring safety and operational reliability in low-voltage AC networks.

What makes the NB1-63H suitable for heavy-duty applications?

It offers a 10 kA breaking capacity and Type B, C, and D tripping curves, making it ideal for both residential and industrial use where different load types exist.

How is it installed and connected?

The NB1-63H supports top or bottom feed connections and mounts easily on a DIN rail (EN 60715), with terminals compatible with both cables and busbars.

What environmental conditions can it withstand?

It operates efficiently from −25 °C to +70 °C, up to 2000 m altitude, and provides IP20 protection, ensuring safety in various climates and installations.

What accessories are compatible with the NB1-63H?

Optional accessories include shunt trip, under-voltage release, alarm, and auxiliary contacts, expanding its control and monitoring capabilities.

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NB1-63H Miniature Circuit Breaker

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