NDM2-250 Series AC MCCB, Nader

Rated current of frame Inm (A)

250A

Rated Voltage (Ue) (V)

AC690V

Rated Current (In) (A)

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

Rated Insulation Voltage Ui (V)

1000V

Rated impulse withstand voltage Uimp (V)

8000V

Tripping Characteristics

C.L.M.H

Number of Poles

3P

3P

3P

3P

4P

Rated limit short-circuit breaking capacity level

C

L

M

H

/

Rated limit short-circuit breaking capacity Icu (kA)

AC 380/400/415V

25kA

36kA

52.5kA

85kA

52.5kA

AC 500V

25kA

AC 550V

20kA

40kA

AC 690V

20kA

Rated operating short-circuit breaking capacity Ics (kA)

AC 380/400/415V

18.75kA

27kA

38kA

63.75kA

38kA

AC 500V

25kA

AC 550V

20kA

40kA

AC 690V

15kA

Rated Frequency (Hz)

50/60Hz

Standards and Certificates

·CCC, TUV, CE

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

Mechanical Life

20000 times

Electrical Life

8000 times

Flashover distance(mm)

≤50

Wiring

·Wiring mode: Front-Mounted Wiring, P, Z1, Z3Q, Z3H

·Thread diameter: /

·Connection capacity:

35mm²(100A), 50mm² (125A, 140A), 70mm² (160A), 95mm² (180A, 200A, 225A), 120mm² (250A)

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

Isolation Function

·Installation Category:

The installation category of the circuit breaker connected to the main loop is:Ⅲ(power distribution and control level);

The installation category of the circuit breaker not connected to the main loop is: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.