NDW2-2000 Series AC ACB, Nader

Rated current In (A)

400A,630A,800A

1000A,1250A,1600A

2000A

N-pole rated current

100%In

Rated voltage (Ue) (V)

AC220V/230V/240V,AC380V/400V/415V,AC440/480V,AC660V/690V

Rated Frequency(Hz)

50/60Hz

Rated insulation voltage Ui (V)

1000V

Rated impulse withstand voltage Uimp (V)

12kV

Number of poles

3P, 4P

Full break time

≤30ms

Closing time

≤70ms

Rated ultimate short circuit Breaking capacity Icu (effective value)(kA)

AC415V

80kA

AC690V

65kA

Rated operating short circuit Breaking capacity Ics (effective value) (kA)

AC415V

80kA

AC690V

65kA

Rated short circuit making capacity Icm(peak value)(kA)

AC415V

176kA

AC690V

143kA

Rated short-time

withstand current Icw (effective value)1s(kA)

AC415V

66kA

AC690V

50kA

Electrical life

AC415V

15000times

15000times

11000times

AC690V

15000times

15000times(1000A-1250A), 8000times(1600A)

6000times

Operation frequency

20times/hours

Mechanical life

Maintenance-free

15000times

With maintenance

30000times

Operation frequency

60times/hours

Installation mode

Fixed type, Drawout type

Standards and Certificates

·CCC, CE, TUV

·GB/T 2423.4-2008, GB/T 4207-2022, GB/T 14048.1-2023, GB/T 14048.2-2020, GB/T 14048.5-2017, GB/T 14092.3-2009, GB/T 19608.3-2004, GB/T 20645-2021, GB/T 20626.3-2022

Wiring method of the main circuit

Fixed type

Horizontal wiring, horizontal extended wiring, “L” wiring

Drawout type

Horizontal wiring, horizontal extended wiring, vertical wiring, “L” wiring

Connection bolt between bus and terminal

M12 (Torque: 60N.m)

Working Environment

·Ambient Temperature:-25℃~+70℃, the circuit breaker with the ambient temperature below -25℃~-40℃ can be specially customized.

·Relative Humidity: The relative humidity at an ambient temperature of +40℃ should not exceed 50%. A higher relative humidity is allowed at a lower temperature.

·Altitude: ≤2000m

·Anti-corrosion Level: 2

·Pollution Level: 3

·The circuit breaker can ensure resistance to electromagnetic or mechanical shock, and has passed the GB/T 4798.3standard test.

·Amplitude:±1.5mm (2 -9Hz)

·Constant acceleration: 5 m/s² (9~200 Hz)

·Super strong shock may result in damage to the parts, and impact the reliable action of the circuit breaker.

·The circuit breaker withstands electromagnetic interference including transient overvoltages (from EMI, system aging, or environmental factors), radio waves, and electrostatic discharge.

Isolation Condition

·Installation conditions: With the vertical qradient no more than 5°, the circuit breaker shall be installed under the environment condition without explosion danger, conductive dust or the possibility of corroding metal and damaging the insulation.

·Installation type: The circuit breaker's main circuit and undervoltage release coils, power transformer primary coil installation category is lV; the rest auxiliary circuit and control circuit installation category is lll.

·Protection level:IP30, IP40

·Utilization category: Category B