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NXA Series Air Circuit Breaker
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NXA Series Air Circuit Breaker

The NXA Series Air Circuit Breaker (ACB) from CHINT delivers reliable protection and intelligent control for low-voltage power distribution. Available from 1600A to 6300A in 3P/4P and fixed or draw-out types, it offers overload, short-circuit, and ground fault protection with advanced monitoring. Its intelligent controller enables precise measurement of current, voltage, power factor, and harmonics, while EMC compliance and wide temperature tolerance ensure safe, stable operation in demanding industrial and commercial environments.

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Product Information

Name
Size
Release time
Operate
2508-NXA-ACB-Catalog.pdf
34.23MB
2025-08-19
Download
Name
Size
Release time
Operate
2401-NXA-ACB-Manual.pdf
39.97MB
2024-09-22
Download
Name
Size
Release time
Operate
2301-NXA-32N,S,H-ACB-KEMA Certificate.pdf
2.41MB
2024-09-22
Download
2301-NXA-32N,S,H-ACB-CE Certificate.pdf
2.26MB
2024-09-22
Download
2212-NXA-40S,H-ACB-KEMA Certificate.pdf
2.41MB
2024-09-22
Download
2212-NXA-40S,H-ACB-CE Certificate.pdf
2.26MB
2024-09-22
Download
2212-NXA-40N-ACB-KEMA Certificate.pdf
2.41MB
2024-09-22
Download
2212-NXA-20N,S,H-ACB-KEMA Certificate.pdf
2.41MB
2024-09-22
Download
2212-NXA-63H-ACB-KEMA Certificate.pdf
2.41MB
2024-09-22
Download
2212-NXA-63H-ACB-CE Certificate.pdf
2.26MB
2024-09-22
Download
2212-NXA-20N,S,H-ACB-CE Certificate.pdf
2.27MB
2024-09-22
Download
2212-NXA-40N-ACB-CE Certificate.pdf
2.26MB
2024-09-22
Download
2212-NXA-16N,S,H-ACB-KEMA Certificate.pdf
2.41MB
2024-09-22
Download
2212-NXA-16N,S,H-ACB-CE Certificate.pdf
2.26MB
2024-09-22
Download
2209-NXA-20N,H-ACB-TUV Certificate.pdf
1.28MB
2024-09-22
Download
2206-NXA-ACB-EAC Certificate.pdf
592.45KB
2024-09-22
Download
2205-NXA-32N,S,H-ACB-CB Certificate.pdf
2.47MB
2024-09-22
Download
2112-NXA-20N,S,H-ACB-CB Certificate.pdf
2.8MB
2024-09-22
Download
2112-NXA-40N-ACB-CB Certificate.pdf
2.72MB
2024-09-22
Download
2112-NXA-16N,S,H-ACB-CB Certificate.pdf
2.79MB
2024-09-22
Download
2112-NXA-40S,H-ACB-CB Certificate.pdf
2.76MB
2024-09-22
Download
2110-NXA-25-ACB-CE Certificate.pdf
2.74MB
2024-09-22
Download
2110-NXA-25-ACB-CB Certificate.pdf
2.83MB
2024-09-22
Download
Name
Size
Release time
Operate
NXA-ACB-Drawing-4000,drawout,3p.stp
76.65MB
2024-09-22
Download
NXA-ACB-Drawing-1600,drawout,3p.stp
23.99MB
2024-09-22
Download
NXA-ACB-Drawing-2000,drawout,4p-1.stp
40.87MB
2024-09-22
Download
NXA-ACB-Drawing-2000,drawout,3p-4.stp
21.21MB
2024-09-22
Download
NXA-ACB-Drawing-2000,drawout,3p-1.stp
20.6MB
2024-09-22
Download
NXA-ACB-Drawing-6300,fixed,3p-2.stp
35.21MB
2024-09-22
Download
NXA-ACB-Drawing-4000,fixed,4p.stp
35.32MB
2024-09-22
Download
NXA-ACB-Drawing-3200,drawout,3p-3.stp
30.13MB
2024-09-22
Download
NXA-ACB-Drawing-2000,drawout,3p-2.stp
19.55MB
2024-09-22
Download
NXA-ACB-Drawing-2000,drawout,3p-5.stp
20.06MB
2024-09-22
Download
NXA-ACB-Drawing-1600,fixed,3p.stp
23.59MB
2024-09-22
Download
NXA-ACB-Drawing-6300,fixed,4p.stp
56.79MB
2024-09-22
Download
NXA-ACB-Drawing-2000,drawout,4p-2.stp
43.12MB
2024-09-22
Download
NXA-ACB-Drawing-4000,drawout.dwg
1.87MB
2024-09-22
Download
NXA-ACB-Drawing-1600,drawout,4p.stp
29.78MB
2024-09-22
Download
NXA-ACB-Drawing-6300,drawout,4p.stp
28.52MB
2024-09-22
Download
NXA-ACB-Drawing-3200,drawout,3p-5.stp
30.17MB
2024-09-22
Download
NXA-ACB-Drawing-3200,drawout,3p-2.stp
19.37MB
2024-09-22
Download
NXA-ACB-Drawing-4000,fixed,3p.stp
36.42MB
2024-09-22
Download
NXA-ACB-Drawing-2000,fixed,4p.stp
25.91MB
2024-09-22
Download
NXA-ACB-Drawing-3200,drawout.dwg
820.84KB
2024-09-22
Download
NXA-ACB-Drawing-4000,fixed.dwg
1.37MB
2024-09-22
Download
NXA-ACB-Drawing-3200,drawout,3p-4.stp
18.97MB
2024-09-22
Download
NXA-ACB-Drawing-3200,fixed,4p.stp
31.03MB
2024-09-22
Download
NXA-ACB-Drawing-1600,fixed,4p.stp
21.84MB
2024-09-22
Download
NXA-ACB-Drawing-2000,drawout.dwg
713.11KB
2024-09-22
Download
NXA-ACB-Drawing-6300,drawout.dwg
2.61MB
2024-09-22
Download
NXA-ACB-Drawing-3200,fixed,3p.stp
24.43MB
2024-09-22
Download
NXA-ACB-Drawing-6300,drawout,3p-2.stp
28.41MB
2024-09-22
Download
NXA-ACB-Drawing-2000,drawout,3p-6.stp
33.28MB
2024-09-22
Download
NXA-ACB-Drawing-2000,fixed.dwg
238.44KB
2024-09-22
Download
NXA-ACB-Drawing-2000,drawout,3p-3.stp
24.98MB
2024-09-22
Download
NXA-ACB-Drawing-6300,fixed,3p-1.stp
56.68MB
2024-09-22
Download
NXA-ACB-Drawing-3200,fixed.dwg
290.4KB
2024-09-22
Download
NXA-ACB-Drawing-1600,fixed.dwg
1.7MB
2024-09-22
Download
NXA-ACB-Drawing-4000,drawout,4p.stp
31.13MB
2024-09-22
Download
NXA-ACB-Drawing-2000,drawout,4p-3.stp
41.21MB
2024-09-22
Download
NXA-ACB-Drawing-2000,fixed,3p.stp
5.16MB
2024-09-22
Download
NXA-ACB-Drawing-1600,drawout.dwg
1.3MB
2024-09-22
Download
NXA-ACB-Drawing-3200,drawout,4p.stp
25.66MB
2024-09-22
Download
NXA-ACB-Drawing-6300,drawout,3p-1.stp
39.84MB
2024-09-22
Download
NXA-ACB-Drawing-6300,fixed.dwg
3.48MB
2024-09-22
Download
NXA-ACB-Drawing-3200,drawout,3p-1.stp
37.27MB
2024-09-22
Download

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FAQs

 

Can the NXA ACB handle high short-circuit currents for industrial applications?

Yes. The NXA ACB supports short-circuit breaking capacities up to 50kA (for NXA40) and 63kA (for NXA63) with fast tripping (<50ms), making it ideal for demanding industrial systems where fault currents can be very high.

 

What installation options are available?

You can choose between fixed type and draw-out type ACBs, depending on maintenance and operational needs. Draw-out versions have clear “Disconnected,” “Test,” and “Connected” positions for safe servicing.

 

How does it perform in harsh environments?

NXA ACBs operate reliably from -5°C to +40°C under normal conditions, and special models can work in extended ranges (-45°C to +70°C). They are also tested for EMC immunity, preventing false trips due to electromagnetic interference.

 

Does it provide energy monitoring?

Yes. The intelligent controller measures current, voltage, power, power factor, and even harmonic distortion up to the 31st order. This allows users to optimize energy consumption and perform preventive maintenance.

 

What safety interlocks are included?

The breaker features mechanical and electrical interlocks, padlock provisions, and optional accessories like interphase barriers and door interlocks to ensure operator safety during maintenance.

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