NDM3A-250 Series AC MCCB, Nader

Rated current of frame Inm (A)

250A

Protection features

Electromagnetic Type

Thermo-magnetic Type

Rated Voltage (Ue) (V)

AC550/600/690/800/1000V

Rated Current (In) (A)

32A, 40A, 50A

63A, 80A, 100A, 125A, 140A, 160A, 180A, 200A, 225A, 250A

Rated Insulation Voltage Ui (V)

1140V

Rated impulse withstand voltage Uimp (V)

8000V

Tripping Characteristics

M.H

Number of Poles

3P

Rated limit short-circuit breaking capacity level

M

M

H

Rated limit short-circuit breaking capacity Icu (kA)

AC 550V

/

50kA

/

AC 600V

/

42kA

/

AC 690V

35kA

35kA

/

AC 800V

/

30kA

36.5kA

AC 1000V

/

12kA

/

Rated operating short-circuit breaking capacity Ics (kA)

AC 550V

/

50kA

/

AC 600V

/

42kA

/

AC 690V

35kA

35kA

/

AC 800V

/

23kA

30kA

AC 1000V

/

12kA

/

Rated Frequency (Hz)

50/60Hz

Standards and Certificates

·CCC, TUV, CE

·GB/T 14048.1-2012, GB/T 14048.2-2008, IEC 60947-1, IEC 60947-2

Maintenance-free life

20000 times

Maintainable life

40000 times

Electrical Life

AC 550V

5000 times

AC 600V

3000 times

AC 690V

2000 times

AC 800V

1500 times

AC 1000V

1000 times

Flashover distance(mm)

≤50

Wiring mode

P, Z1

Boundary dimension

107×165×103

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 and oil mist.

·Pollution Level: 3

·Protection class: IP20

Isolation Function

·Installation mode: The product can be installed horizontally or vertically. For vertical installation of the product, the gradient between the installation surface and the vertical plane is no more than ±22.5°.

·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.