ACB
Low Voltage Brief Catalogue 058 Low Voltage Brief Catalogue P - P-030
ACB
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
NA1
▪ 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
11
7
12
8
9
13
10
14
1
15
3
4
5
2
16
6
Auxiliary contact
1
5
9
13
Under-voltage release
Drawout type
Wire-cable mechanical interlock
Locking-device
2
6
10
14
Fixed type
Connecting-rod type mechanical interlock
Motor-driven energy-storage mechanism
Intelligent controller
3
7
11
15
Arcing chamber
Shunt release
Rotary handle
Operating mechanism
16
Secondary connecting part 8
4
Fixed plate
12
Closing electromagnet
Powered by FlippingBook