NDM3Z-250 Series DC MCCB, Nader

Rated current of frame Inm (A)

250A

Rated Current (In) (A)

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

Rated Insulation Voltage Ui (V)

1500V

Rated impulse withstand voltage Uimp (V)

8000V

Tripping Characteristics

/

Number of Poles

2P

3P

4P

4P

J0/J1/J2/J3

J0/J2

J1/J3

Rated Voltage (Ue) (V)

500V

600V

690V

750V

1000V

1000V

1200V

1250V

Rated limit short-circuit breaking capacity level

/

Rated limit short-circuit breaking capacity Icu (kA)

35kA

8kA

5kA

40kA

40kA

40kA

10kA

15kA

Rated operating short-circuit breaking capacity Ics (kA)

35kA

8kA

5kA

25kA

25kA

25kA

10kA

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

Maintenance-free life

10000 times

Maintainable life

20000 times

Electrical Life

5000 times

Flashover distance(mm)

≤50

Wiring mode

/

J0

J0, J1, J2, J3

Thread diameter

M4 (Torque value: 1.2-1.8N.m), M8 (Torque value: 12N.m)

Connection capacity

50mm² (125A, 140A), 70mm² (160A), 95mm² (180A, 200A, 225A), 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 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.