NDM3E-250 Series Electronic MCCB, Nader

Rated current of frame Inm (A)

250A

Rated Voltage (Ue) (V)

AC690V

Rated Current (In) (A)

160A

250A

Rated Insulation Voltage Ui (V)

1000V

1000V

Rated impulse withstand voltage Uimp (V)

8000V

8000V

Tripping Characteristics

M.H

Number of Poles

3P

3P

4P

Rated limit short-circuit breaking capacity level

M

H

/

Rated limit short-circuit breaking capacity Icu (kA)

AC380/400V/415V

70kA

85kA

70kA

AC500V

/

/

/

AC660/690V

20kA

/

20kA

Rated operating short-circuit breaking capacity Ics (kA)

AC380/400V/415V

50kA

65kA

50kA

AC500V

/

/

/

AC660/690V

15kA

/

15kA

Rated Frequency (Hz)

50/60Hz

Standards and Certificates

·CCC, TUV, CE

·GB/T14048.1-2012, GB/T14048.2-2008, IEC 60947-1, IEC 60947-2

Maintenance-free life

20000 times

20000 times

Maintainable life

40000 times

40000 times

Electrical Life (AC380/400V/415V)

8000 times

8000 times

Flashover distance(mm)

≤50

≤50

Wiring

·Wiring mode: Front-Mounted Wiring, P, Z1

·Thread diameter: /

·Connection capacity: /

Normal Working Environment

·Ambient Temperature: -35℃~+70℃

·Storage Temperature: -40℃~+75℃

·Altitude: ≤2500m

·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.

·The product can withstand the effects of wet air, salt mist and oil mist.

·Pollution Level: 3

·Protection class: IP20

Isolation Function

·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.