NA8 Air Circuit Breaker

NA8 Air Circuit Breaker

NA8 Air Circuit Breaker

NA8 Air Circuit Breaker

NA8 Air Circuit Breaker

NA8 Air Circuit Breaker

NA8 Air Circuit Breaker

NA8 Air Circuit Breaker

NA8 Air Circuit Breaker

NA8 Air Circuit Breaker

NA8 Air Circuit Breaker

NA8 Air Circuit Breaker

NA8 Air Circuit Breaker

NA8 Air Circuit Breaker

NA8 Air Circuit Breaker

NA8 Air Circuit Breaker

NA8 Air Circuit Breaker

NA8 Air Circuit Breaker

NA8 Air Circuit Breaker

NA8 Air Circuit Breaker

NA8 Air Circuit Breaker

NA8 Air Circuit Breaker

NA8 Air Circuit Breaker

NA8 Air Circuit Breaker

NA8 Air Circuit Breaker

NA8 Air Circuit Breaker

NA8 Air Circuit Breaker

NA8 Air Circuit Breaker

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.

Product Information

Frame Sizes: 1600A, 2500A, 3200A, 4000A, 7500A
Breaking Capacity: N (standard), H (high), HU (high voltage)
Rated Operational Voltage: 380/400/415V, 690V, 800V, 1000/1150V
Poles: 3 or 4
Mounting Options: Fixed & draw-out types, horizontal/vertical/mixed connection
Protection Functions: Overload (L), short-circuit (S & I), earth fault (G), advanced harmonic measurement
Intelligent Controller Types: M (basic), H (communication + LCD), S (IoT-enabled)
Environmental Ratings: -5°C to +40°C certified, up to -45°C~+70°C (M type), EMC compliant per IEC/EN 60947-2
Accessories & Safety: Interlocks, key locks, padlocks, optional position indicators, remote operation mechanisms

Name

Size

Release time

Operate

2501-NA8-ACB-Catalog.pdf

4.61MB

2025-08-26

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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

545.81KB

2024-09-22

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2406-NA8 New H Controller-ACB-Manual.pdf

15.92MB

2024-09-22

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2405-NA8-ACB-Manual.pdf

11.3MB

2024-09-22

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2408-NA8 New S Controller-ACB-Manual.pdf

32.23MB

2024-09-22

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1906-NA8-ACB-Manual.pdf

71.33MB

2024-09-22

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Name

Size

Release time

Operate

2210-NA8-3200 4000H-ACB- CE certificate .pdf

2.27MB

2025-08-12

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2206-NA8-ACB-EAC Certificate.pdf

592.96KB

2024-09-22

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2201-NA8-ACB-CE RoHS Declaration Certificate.pdf

272.25KB

2024-09-22

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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

809.71KB

2024-09-22

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1901-NA8-4000H-ACB-CB Certificate.pdf

150.74KB

2024-09-22

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1901-NA8-1600H-ACB-CB Certificate.pdf

148.99KB

2024-09-22

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1811-NA8-2500H-ACB-CB Certificate.pdf

1.1MB

2024-09-22

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1810-NA8-2500H-ACB-CE Certificate.pdf

2.27MB

2024-09-22

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1810-NA8-4000H-ACB-CE Certificate.pdf

2.27MB

2024-09-22

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1810-NA8-1600H-ACB-CE Certificate.pdf

2.26MB

2024-09-22

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1809-NA8-4000H-ACB-KEMA Certificate.pdf

2.24MB

2024-09-22

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1809-NA8-1600H-ACB-KEMA Certificate.pdf

2.24MB

2024-09-22

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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

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NA8-ACB-Drawing-1600-1250A~1600A- 4P-WD-Vertical.stp

29.26MB

2024-12-16

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NA8-ACB-Drawing-1600-1250A~1600A-3P-FX-Horizon.stp

25.21MB

2024-12-16

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NA8-ACB-Drawing-1600-1250A~1600A-3P-FX-Vertical.stp

25.28MB

2024-12-16

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NA8-ACB-Drawing-1600-1250A~1600A-3P-WD-Vertical.stp

24.76MB

2024-12-16

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NA8-ACB-Drawing-1600-1250A~1600A-4P-FX-Horizon.stp

26.9MB

2024-12-16

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NA8-ACB-Drawing-1600-1250A~1600A-4P-FX-Vertical.stp

26.83MB

2024-12-16

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NA8-ACB-Drawing-1600-1250A~1600A-4P-WD-Horizon.stp

29.26MB

2024-12-16

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NA8-ACB-Drawing-1600-1600A-3P-FX.stp

11.84MB

2024-12-16

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NA8-ACB-Drawing-1600-1600A-3P-WD.stp

9.32MB

2024-12-16

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NA8-ACB-Drawing-1600-1600A-4P-FX.stp

12.89MB

2024-12-16

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NA8-ACB-Drawing-1600-1600A-4P-WD.stp

8.52MB

2024-12-16

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NA8-ACB-Drawing-1600-200A~630A-3P-FX-Horizon.stp

25.28MB

2024-12-16

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NA8-ACB-Drawing-1600-200A~630A-3P-FX-Vertical.stp

25.28MB

2024-12-16

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NA8-ACB-Drawing-1600-200A~630A-3P-WD-Horizon.stp

24.76MB

2024-12-16

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NA8-ACB-Drawing-1600-200A~630A-3P-WD-Vertical.stp

24.76MB

2024-12-16

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NA8-ACB-Drawing-1600-200A~630A-4P-FX-Horizon.stp

26.95MB

2024-12-16

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NA8-ACB-Drawing-1600-200A~630A-4P-FX-Vertical.stp

26.95MB

2024-12-16

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NA8-ACB-Drawing-1600-200A~630A-4P-WD-Horizon.stp

29.05MB

2024-12-16

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NA8-ACB-Drawing-1600-200A~630A-4P-WD-Vertical.stp

29.05MB

2024-12-16

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NA8-ACB-Drawing-1600-800A~1000A-3P-FX-Horizon.stp

25.28MB

2024-12-16

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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

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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

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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

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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.