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NA8 Air Circuit Breaker
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Low Voltage IEC Main Power Distribution NA8 Air Circuit Breaker
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NA8 Air Circuit Breaker

NA8 Air Circuit Breaker

The NA8 Air Circuit Breaker (ACB) is CHINT’s advanced low-voltage power distribution solution, engineered for reliability and intelligent protection. With frame sizes from 1600A to 7500A and breaking capacities in N, H, and HU types, it supports 3P/4P configurations and fixed or draw-out mounting. The NA8 offers comprehensive protection functions, communication-enabled smart control, harmonic monitoring, and multiple interlocking options—ideal for critical power applications in industrial, commercial, and infrastructure settings.

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Product Information

Name
Size
Release time
Operate
2501-NA8-ACB-Catalog.pdf
4.61MB
2025-08-26
Download
Name
Size
Release time
Operate
NA8-new H Controller-ACB-Communication Protocal.pdf
1.44MB
2024-09-22
Download
1906-NA8 Old Controller-ACB-Manual.pdf
546.17KB
2024-09-22
Download
2406-NA8 New H Controller-ACB-Manual.pdf
15.92MB
2024-09-22
Download
2405-NA8-ACB-Manual.pdf
11.3MB
2024-09-22
Download
2408-NA8 New S Controller-ACB-Manual.pdf
32.23MB
2024-09-22
Download
1906-NA8-ACB-Manual.pdf
71.33MB
2024-09-22
Download
Name
Size
Release time
Operate
2210-NA8-3200 4000H-ACB- CE certificate .pdf
2.27MB
2025-08-12
Download
2206-NA8-ACB-EAC Certificate.pdf
593.33KB
2024-09-22
Download
2201-NA8-ACB-CE RoHS Declaration Certificate.pdf
272.63KB
2024-09-22
Download
2012-NA8-1600-ACB-CB Certificate.pdf
2.15MB
2024-09-22
Download
1908-NA8-7500,7500H-ACB-KEMA Certificate.pdf
2.26MB
2024-09-22
Download
1907-NA8-7500-ACB-CE Certificate.pdf
810.08KB
2024-09-22
Download
1901-NA8-4000H-ACB-CB Certificate.pdf
151.12KB
2024-09-22
Download
1901-NA8-1600H-ACB-CB Certificate.pdf
149.37KB
2024-09-22
Download
1811-NA8-2500H-ACB-CB Certificate.pdf
1.1MB
2024-09-22
Download
1810-NA8-2500H-ACB-CE Certificate.pdf
2.27MB
2024-09-22
Download
1810-NA8-4000H-ACB-CE Certificate.pdf
2.27MB
2024-09-22
Download
1810-NA8-1600H-ACB-CE Certificate.pdf
2.26MB
2024-09-22
Download
1809-NA8-4000H-ACB-KEMA Certificate.pdf
2.24MB
2024-09-22
Download
1809-NA8-1600H-ACB-KEMA Certificate.pdf
2.25MB
2024-09-22
Download
1809-NA8-2500H-ACB-KEMA Certificate.pdf
2.25MB
2024-09-22
Download
NA8-1600 DEKAR CE_20240205.pdf
2.27MB
2025-08-20
Download
Name
Size
Release time
Operate
NA8-ACB-Drawing-1600-1250A~1600A- 3P-WD-Horizon.stp
24.77MB
2024-12-16
Download
NA8-ACB-Drawing-1600-1250A~1600A- 4P-WD-Vertical.stp
29.26MB
2024-12-16
Download
NA8-ACB-Drawing-1600-1250A~1600A-3P-FX-Horizon.stp
25.21MB
2024-12-16
Download
NA8-ACB-Drawing-1600-1250A~1600A-3P-FX-Vertical.stp
25.28MB
2024-12-16
Download
NA8-ACB-Drawing-1600-1250A~1600A-3P-WD-Vertical.stp
24.76MB
2024-12-16
Download
NA8-ACB-Drawing-1600-1250A~1600A-4P-FX-Horizon.stp
26.9MB
2024-12-16
Download
NA8-ACB-Drawing-1600-1250A~1600A-4P-FX-Vertical.stp
26.83MB
2024-12-16
Download
NA8-ACB-Drawing-1600-1250A~1600A-4P-WD-Horizon.stp
29.26MB
2024-12-16
Download
NA8-ACB-Drawing-1600-1600A-3P-FX.stp
11.84MB
2024-12-16
Download
NA8-ACB-Drawing-1600-1600A-3P-WD.stp
9.32MB
2024-12-16
Download
NA8-ACB-Drawing-1600-1600A-4P-FX.stp
12.89MB
2024-12-16
Download
NA8-ACB-Drawing-1600-1600A-4P-WD.stp
8.52MB
2024-12-16
Download
NA8-ACB-Drawing-1600-200A~630A-3P-FX-Horizon.stp
25.28MB
2024-12-16
Download
NA8-ACB-Drawing-1600-200A~630A-3P-FX-Vertical.stp
25.28MB
2024-12-16
Download
NA8-ACB-Drawing-1600-200A~630A-3P-WD-Horizon.stp
24.76MB
2024-12-16
Download
NA8-ACB-Drawing-1600-200A~630A-3P-WD-Vertical.stp
24.76MB
2024-12-16
Download
NA8-ACB-Drawing-1600-200A~630A-4P-FX-Horizon.stp
26.95MB
2024-12-16
Download
NA8-ACB-Drawing-1600-200A~630A-4P-FX-Vertical.stp
26.95MB
2024-12-16
Download
NA8-ACB-Drawing-1600-200A~630A-4P-WD-Horizon.stp
29.05MB
2024-12-16
Download
NA8-ACB-Drawing-1600-200A~630A-4P-WD-Vertical.stp
29.05MB
2024-12-16
Download
NA8-ACB-Drawing-1600-800A~1000A-3P-FX-Horizon.stp
25.28MB
2024-12-16
Download
NA8-ACB-Drawing-1600-800A~1000A-3P-FX-Vertical.stp
25.28MB
2024-12-16
Download
NA8-ACB-Drawing-1600-800A~1000A-3P-WD-Horizon.stp
24.77MB
2024-12-16
Download
NA8-ACB-Drawing-1600-800A~1000A-3P-WD-Vertical.stp
24.77MB
2024-12-16
Download
NA8-ACB-Drawing-1600-800A~1000A-4P-FX-Horizon.stp
26.9MB
2024-12-16
Download
NA8-ACB-Drawing-1600-800A~1000A-4P-FX-Vertical.stp
26.9MB
2024-12-16
Download
NA8-ACB-Drawing-1600-800A~1000A-4P-WD-Horizon.stp
29.06MB
2024-12-16
Download
NA8-ACB-Drawing-1600-800A~1000A-4P-WD-Vertical.stp
29.06MB
2024-12-16
Download
NA8-ACB-Drawing-2500 2000A-2500A 3P-FX-Horizon.stp
16.02MB
2024-12-16
Download
NA8-ACB-Drawing-2500 2000A-2500A 3P-FX-Vertical.stp
16.02MB
2024-12-16
Download
NA8-ACB-Drawing-2500 2000A-2500A 3P-WD-Horizon.stp
17.45MB
2024-12-16
Download
NA8-ACB-Drawing-2500 2000A-2500A 3P-WD-Vertical.stp
17.45MB
2024-12-16
Download
NA8-ACB-Drawing-2500 2000A-2500A 4P-FX-Horizon.stp
17.21MB
2024-12-16
Download
NA8-ACB-Drawing-2500 2000A-2500A 4P-FX-Vertical.stp
17.21MB
2024-12-16
Download
NA8-ACB-Drawing-2500 2000A-2500A 4P-WD-Horizon.stp
18.27MB
2024-12-16
Download
NA8-ACB-Drawing-2500 2000A-2500A 4P-WD-Vertical.stp
18.27MB
2024-12-16
Download
NA8-ACB-Drawing-2500 630A-1600A 3P-FX-Horizon.stp
15.69MB
2024-12-16
Download
NA8-ACB-Drawing-2500 630A-1600A 3P-FX-Vertical.stp
15.69MB
2024-12-16
Download
NA8-ACB-Drawing-2500 630A-1600A 3P-WD-Horizon.stp
17.12MB
2024-12-16
Download
NA8-ACB-Drawing-2500 630A-1600A 3P-WD-Vertical.stp
17.12MB
2024-12-16
Download
NA8-ACB-Drawing-2500 630A-1600A 4P-FX-Horizon.stp
16.88MB
2024-12-16
Download
NA8-ACB-Drawing-2500 630A-1600A 4P-FX-Vertical.stp
16.88MB
2024-12-16
Download
NA8-ACB-Drawing-2500 630A-1600A 4P-WD-Horizon.stp
17.94MB
2024-12-16
Download
NA8-ACB-Drawing-2500 630A-1600A 4P-WD-Vertical.stp
17.94MB
2024-12-16
Download
NA8-ACB-Drawing-3200-1600A~2500A-3P-FX-Horizon.stp
15.72MB
2024-12-16
Download
NA8-ACB-Drawing-3200-1600A~2500A-3P-FX-Vertical.stp
15.72MB
2024-12-16
Download
NA8-ACB-Drawing-3200-1600A~2500A-3P-WD-Horizon.stp
19.73MB
2024-12-16
Download
NA8-ACB-Drawing-3200-1600A~2500A-3P-WD-Vertical.stp
19.73MB
2024-12-16
Download
NA8-ACB-Drawing-3200-1600A~2500A-4P-FX-Horizon.stp
16.82MB
2024-12-16
Download
NA8-ACB-Drawing-3200-1600A~2500A-4P-FX-Vertical.stp
16.82MB
2024-12-16
Download
NA8-ACB-Drawing-3200-1600A~2500A-4P-WD-Horizon.stp
22.15MB
2024-12-16
Download
NA8-ACB-Drawing-3200-1600A~2500A-4P-WD-Vertical.stp
22.15MB
2024-12-16
Download
NA8-ACB-Drawing-3200-3200A-3P-FX-Horizon.stp
15.87MB
2024-12-16
Download
NA8-ACB-Drawing-3200-3200A-3P-FX-Vertical.stp
15.73MB
2024-12-16
Download
NA8-ACB-Drawing-3200-3200A-3P-WD-Horizon.stp
19.78MB
2024-12-16
Download
NA8-ACB-Drawing-3200-3200A-3P-WD-Vertical.stp
19.73MB
2024-12-16
Download
NA8-ACB-Drawing-3200-3200A-4P-FX-Horizon.stp
17.01MB
2024-12-16
Download
NA8-ACB-Drawing-3200-3200A-4P-FX-Vertical.stp
16.83MB
2024-12-16
Download
NA8-ACB-Drawing-3200-3200A-4P-WD-Horizon.stp
22.28MB
2024-12-16
Download
NA8-ACB-Drawing-3200-3200A-4P-WD-Vertical.stp
22.36MB
2024-12-16
Download
NA8-ACB-Drawing-4000-1600A~2500A-3P-FX-Horizon.stp
15.72MB
2024-12-16
Download
NA8-ACB-Drawing-4000-1600A~2500A-3P-FX-Vertical.stp
15.72MB
2024-12-16
Download
NA8-ACB-Drawing-4000-1600A~2500A-3P-WD-Horizon.stp
19.73MB
2024-12-16
Download
NA8-ACB-Drawing-4000-1600A~2500A-3P-WD-Vertical.stp
19.73MB
2024-12-16
Download
NA8-ACB-Drawing-4000-1600A~2500A-4P-FX-Horizon.stp
16.82MB
2024-12-16
Download
NA8-ACB-Drawing-4000-1600A~2500A-4P-FX-Vertical.stp
16.82MB
2024-12-16
Download
NA8-ACB-Drawing-4000-1600A~2500A-4P-WD-Horizon.stp
22.15MB
2024-12-16
Download
NA8-ACB-Drawing-4000-1600A~2500A-4P-WD-Vertical.stp
22.15MB
2024-12-16
Download
NA8-ACB-Drawing-4000-3200A~4000A-3P-FX-Horizon.stp
15.87MB
2024-12-16
Download
NA8-ACB-Drawing-4000-3200A~4000A-3P-FX-Vertical.stp
15.73MB
2024-12-16
Download
NA8-ACB-Drawing-4000-3200A~4000A-3P-WD-Horizon.stp
19.78MB
2024-12-16
Download
NA8-ACB-Drawing-4000-3200A~4000A-3P-WD-Vertical.stp
19.73MB
2024-12-16
Download
NA8-ACB-Drawing-4000-3200A~4000A-4P-FX-Horizon.stp
17.01MB
2024-12-16
Download
NA8-ACB-Drawing-4000-3200A~4000A-4P-FX-Vertical.stp
16.83MB
2024-12-16
Download
NA8-ACB-Drawing-4000-3200A~4000A-4P-WD-Horizon.stp
22.28MB
2024-12-16
Download
NA8-ACB-Drawing-4000-3200A~4000A-4P-WD-Vertical.stp
22.36MB
2024-12-16
Download
NA8-ACB-Drawing-7500,3p.stp
16.7MB
2024-09-22
Download
NA8-ACB-Drawing-7500,4000A,drawout,3P.stp
20.89MB
2024-09-22
Download
NA8-ACB-Drawing-7500,4000A,drawout,4P.stp
21.88MB
2024-09-22
Download
NA8-ACB-Drawing-7500,4p.stp
18.13MB
2024-09-22
Download
NA8-ACB-Drawing-7500,5000,3P.stp
16.83MB
2024-09-22
Download
NA8-ACB-Drawing-7500,5000,4P.stp
17.94MB
2024-09-22
Download
NA8-ACB-Drawing-7500,5000A,drawout,3P.stp
20.89MB
2024-09-22
Download
NA8-ACB-Drawing-7500,5000A,drawout,4P.stp
21.88MB
2024-09-22
Download
NA8-ACB-Drawing-7500,6300,3P.stp
16.83MB
2024-09-22
Download
NA8-ACB-Drawing-7500,6300,4p.stp
17.95MB
2024-09-22
Download
NA8-ACB-Drawing-7500,drawout,3P.stp
20.89MB
2024-09-22
Download
NA8-ACB-Drawing-7500,drawout,4P.stp
22.38MB
2024-09-22
Download
NA8-ACB-Drawing-7500-6300-D-4P-vertical.stp
22.38MB
2024-09-22
Download
NA8-ACB-Drawing-7500-6300-drawout-3P-Vertical.stp
20.37MB
2024-09-22
Download
NA8-1600_2D.dwg
7.14MB
2025-07-21
Download
NA8-2500_2D.dwg
3.47MB
2025-07-21
Download
NA8-3200_2D.dwg
6.39MB
2025-07-21
Download
NA8-4000_2D.dwg
6.36MB
2025-07-21
Download
NA8-7500_2D.dwg
3.59MB
2025-07-21
Download

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FAQs

 

What protection features does the NA8 ACB provide?

It includes overload, short-circuit (instantaneous & short delay), earth fault protection, harmonic monitoring, and advanced functions via the H or S controller types.

 

Can I monitor and control the breaker remotely?

Yes. The NA8 supports motorized operation, remote closing/opening, communication-enabled monitoring (H type), and IoT functions (S type) for advanced energy management.

 

Is the NA8 suitable for harsh environments?

Yes. It is certified to operate from -5°C to +40°C and special versions can work reliably in -45°C to +70°C. It is EMC-tested for immunity against surges, static discharge, and radio interference.

 

How do I ensure safe maintenance?

The NA8 offers clear disconnected, test, and connected positions for the draw-out type, with optional padlocks and mechanical interlocks to secure the breaker during servicing.

 

Which industries typically use NA8?

It is ideal for power distribution in industrial facilities, data centers, commercial complexes, and infrastructure projects where reliability and intelligent protection are critical.

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