NDW1A-4000 Series AC ACB, Nader

Rated Insulation Voltage Ui (V)

1000V

Rated impulse withstand voltage Uimp (kV)

12kV

N-pole rated current

100%In

Rated Frequency(Hz)

50/60Hz

Rated Current (In) (A)

2000A, 2500A

3200A, 3600A, 4000A

Number of Poles

3P, 4P

Rated Voltage (Ue) (V)

AC220V/230V/240V, AC380V/400V/415V, AC440V/480V, AC660V/690V

Full break time

≤30ms

Closing time

≤70ms

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

AC415V

100kA

AC690V

80kA

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

AC415V

85kA

AC690V

70kA

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

AC415V

220kA

AC690V

176kA

Rated short-time

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

AC415V

85kA

AC690V

70kA

Electrical life

AC415V

6000times(2000A-3600A)

6000times(4000A)

AC690V

4500times(2000A-3600A)

3000times(4000A)

Operation frequency

20times/hours

Mechanical life

Maintenance-free

12500times(3P), 6500(4P)

With maintenance

25000times(3P), 15000(4P)

Operation frequency

60times/hours

Installation mode

Fixed type, Drawout type

Standards and Certificates

·CCC

·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

Horizontal wiring, vertical wiring, horizontal extended wiring, vertical extended wiring

Connection bolt between bus and terminal

M12 (Torque: 60N.m);

M14 (Torque: 97N.m)

Rated Frequency (Hz)

50/60Hz

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

·The installation category of the circuit breaker connected to the main loop is: Category Ⅲ (power distribution and control level), The installation category of the circuit breaker not connected to the mainloop is: Category Ⅱ (load level)

·Installation Environment:

The product should be installed in places that are free from explosive media, media corrosive to metal, insulation damaging gas, and conductive dust, which should be also avoided from snow and rain.