AIR CIRCUIT BREAKER
Low-voltage Brief Catalogue
ACB
060
P -
NA1 Air Circuit Breaker
• Rated current from 200 to 6300A • Modulized mechanical part and accessories • The terminal of the control circuit on the front enables easy handling • Minimized arc space • 3P 4P available • Max. breaking capacity up to 120kA at 400V • Drawout type / fixed type • Power supplied from either top or bottom does no reduction in performance • Circuit breakers comply with IEC/EN 60947-2 • Certified for operation in pollution-degree Ⅲ environments as defined by IEC standard 60947 (industrial environments). • Temperature range from -5 ℃ to + 40 ℃ • A complete system of add-on modules for NA1
High-performance model
NA8 series Rated current: 200-7500A Icu: 55KA-135KA
NA1
11
7
12
8
Cost-effective model
9
13
10
NXA series Rated current: 400A-6300A Icu: 50KA-120 KA
14
1
3
15
4
2
5
16
6
Basic model
NA1 series Rated current: 220A-6300A Icu: 42KA-120KA
1
7
13
Drawout type
Arcing chamber
Under-voltage release
2
8
14
Fixed type
Secondary connecting part
Motor-driven energy-storage mechanism
3
9
15
Intelligent controller
Wire-cable mechanical interlock
Rotary handle
4
10
16
Operating mechanism
Connecting-rod type mechanical interlock
Fixed plate
5
11
Auxiliary contact
Shunt release
6
12
Locking-device
Closing electromagnet
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