NDM5E-250 Series Electronic MCCB, Nader

Rated current of frame Inm (A)

250A

Rated Voltage (Ue) (V)

AC400V/AC415V, AC690V

Rated Current (In) (A)

40A,100A,250A

Rated Insulation Voltage Ui (V)

1000V

Rated impulse withstand voltage Uimp (V)

8000V

Power frequency withstand voltage (1min) (V)

3500V

Tripping Characteristics

L.M.H

Number of Poles

3P

4P

Rated limit short-circuit breaking capacity level

L

M

H

L

M

H

Rated limit short-circuit breaking capacity Icu (kA)

AC380/400/415V

70kA

100kA

150kA

70kA

100kA

150kA

AC500V

/

/

/

/

/

/

AC660/690V

8kA

12kA

15kA

8kA

12kA

15kA

Rated operating short-circuit breaking capacity Ics (kA)

AC380/400/415V

70kA

100kA

150kA

70kA

100kA

150kA

AC500V

/

/

/

/

/

/

AC660/690V

8kA

12kA

15kA

8kA

12kA

15kA

Rated Frequency (Hz)

50/60Hz

Standards and Certificates

·CCC, TUV, CE

·IEC60947-2, GB/T 14048.2

Maintenance-free life

25000 times

Maintainable life

50000 times

Electrical Life

AC380/400/415V

10000 times

AC500V

/

AC660/690V

4000 times

Flashover distance(mm)

≤50 (without terminal cover)

Wiring mode

/

Thread diameter

M8 (Torque value: 15N.m), M5 (Torque value: 2N.m)

Connection capacity

10mm²(40A), 35mm²(100A), 120mm²(250A)

Normal Working Environment

·Ambient Temperature: -35℃~+70℃

·Storage Temperature: -40℃~+75℃

·Altitude: ≤2500m

·Environmental Requirements: RoHS

·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, oil mist and mould.

·Pollution Level: 3

·Protection class: IP20

Isolation Function

·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.