NDW3-6300 Series AC ACB, Nader

Rated current In (+40℃)(A)

4000A,5000A,6300A

N-pole rated current

100%In

Rated voltage (Ue) (V)

AC220/230/240V,AC380/400/415V,AC440/480V,AC660/690V,AC800V,AC1000V,AC1140V,AC1380V,AC1500V

Rated Frequency(Hz)

50/60Hz

Rated insulation voltage Ui (V)

1250V,1800V(XU type)

Rated impulse withstand voltage Uimp (kV)

12kV,18kV(XU type)

Number of poles

3P, 4P

Full break time

≤30ms

Closing time

≤70ms

Breaking type

S

H

HU

XU

Rated limit short-circuit breaking capacity Icu(effective value)(kA)

AC220V~415V

120kA

135kA

/

/

AC440V/480V/660V/690V

85kA

100kA

/

/

AC800V

/

/

85kA

/

AC1000V/1140V

/

/

66kA

/

AC1140V/1380V/1500V

/

/

/

80kA

Rated operating short-circuit breaking capacity Ics(effective value)(kA)

Ics=100%Icu

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

AC220V~415V

264kA

297kA

/

/

AC440V/480V/660V/690V

187kA

220kA

/

/

AC800V

/

/

187kA

/

AC1000V/1140V

/

/

145.2kA

/

AC1140V/1380V/1500V

/

/

/

176kA

Rated short-time withstand current Icw(effective value)1s(kA)

AC220V~415V

120kA

135kA

/

/

AC440V/480V/660V/690V

85kA

100kA

/

/

AC800V

/

/

85kA

/

AC1000V/1140V

/

/

66kA

/

AC1140V/1380V/1500V

/

/

/

80kA

Electrical Life(times)

AC220V~415V

6000(4000A),4000(5000A),2000(6300A)

AC440V/480V/660V/690V

3500(4000A),2500(5000A),1500(6300A)

AC800V

3000(4000A),1500(5000A),1000(6300A)

AC1000V/1140V/1380V/1500V

2000(4000A),1000(5000A),500(6300A)

Operation frequency

10times/h

Mechanical life(times)

Maintenance-free

7000(3P), 6500(4P)

With maintenance

13000

Operation frequency

30times/h

Installation Mode

Fixed type, Drawout type

Wiring method of the main circuit

Horizontal wiring,vertical wiring,horizontal extended wiring,vertical extended wiring, (only vertical for 6300A,vertical extended wiring)

Utilization category

Category B

Connection bolt between bus and terminal

M14 (Torque: 97N.m)

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

Working Environment

·Ambient Temperature:-25℃~+70℃;The disconnecting switch with the ambient temperature below -25℃~-40℃ can be specially customized.

·When the ambient air temperature is +40℃, the relative humidity of atmosphere shall not be more than 50%.

·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 4798.3 standard 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 Function

·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 IV;the rest auxiliary circuit and control circuit installation category is III.

·Protection level: IP30, IP40 (mounted in cabinet compartment with protective door frame), IP54 (lP54 transparent cover assembly with special door frame, mounted in cabinet compartment)