Name: NXB-125G Miniature Circuit Breaker
Brand: Chint

NXB-125G Miniature Circuit Breaker

The NXB-125G Miniature Circuit Breaker (MCB) provides essential overload and short-circuit protection for electrical circuits up to 125A. This crucial device also offers positive isolation and circuit switching, enhancing safety and reliability across residential, commercial, and industrial power distribution systems.

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FAQs

What protection functions does the NXB-125G offer?

It provides overload, short-circuit, and isolation protection, ensuring system safety and preventing damage from electrical faults

What applications is the NXB-125G suitable for?

It’s designed for industrial power distribution, commercial installations, and heavy-duty machinery, where high breaking capacity and reliability are critical

How many poles are available for the NXB-125G?

The breaker comes in 1P, 2P, 3P, and 4P configurations, supporting both single-phase and three-phase systems

What’s the difference between the tripping curves?

B Curve: Protects resistive loads (e.g., lighting).

C Curve: Protects mixed loads (motors, outlets).

D Curve: Handles high inrush currents (transformers, motors).

OV Curve: Specialized high inrush curve (3P, 80 A only).

How does it handle temperature variations?

The NXB-125G maintains rated performance up to 30 °C, with derating applied above that (e.g., 93% at 40 °C, 74% at 70 °C).

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NXB-125G Miniature Circuit Breaker

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NXB-125G Miniature Circuit Breaker

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