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NXB-63S Miniature circuit breaker
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Low Voltage IEC Final Power Distribution NXB-63S Miniature circuit breaker
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Final Power Distribution
NXB-63S
NXB-63S

NXB-63S Miniature circuit breaker

The NXB-63S Miniature Circuit Breaker (MCB) delivers dependable protection against overload and short-circuit faults in residential, commercial, and industrial electrical systems. Designed for AC 230/400V circuits, it supports rated currents up to 63A with breaking capacities of 6kA or 10kA. Compact and durable, the NXB-63S ensures safe power distribution, high operational reliability, and long mechanical life. Fully compliant with IEC60898-1, it’s the ideal solution for modern low-voltage networks.

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Product Information

Name
Size
Release time
Operate
NXB-63S-MCB-Catalog.pdf
959.37KB
2025-12-24
Download
Name
Size
Release time
Operate
2101-NXB-63C-NXB-63S-MCB-Manual.pdf
977.57KB
2024-09-22
Download
Name
Size
Release time
Operate
2503-NXB-63S-MCB-CE Certificate.pdf
697.69KB
2025-04-28
Download
2309-NXB-63S-MCB-CE RoHS Declaration Certificate.pdf
670.12KB
2024-09-22
Download

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FAQs

 

What is the NXB-63S Miniature Circuit Breaker designed to protect against?

It safeguards electrical circuits from overloads and short circuits, automatically cutting off power when abnormal currents occur.

 

What environments are suitable for the NXB-63S?

This MCB is suitable for residential, commercial, and light industrial systems, particularly where compact and reliable circuit protection is required.

 

What are the available tripping characteristics?

The NXB-63S offers B, C, and D curve options — B for resistive loads, C for mixed or inductive loads, and D for high inrush current applications.

 

How does this MCB ensure long-term reliability?

With 20,000 mechanical and 10,000 electrical operations, the NXB-63S ensures a long service life with stable performance even under frequent switching.

 

What installation options does it support?

It’s designed for DIN rail mounting, suitable for both vertical and horizontal positions, making it adaptable to various distribution system configurations.

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