Range

MasterPacT

Product name

MasterPact NW DC

circuit breaker name

MasterPact NW40NDC-C

Product or component type

Circuit breaker

Device application

DC voltage switching

Poles description

3P

Control unit

Without control unit

[In] rated current

4000 A at 40 °C

Performance type

N 35 kA 500 V DC

[Ue] rated operational voltage

500/900 V DC

Suitability for isolation

Yes conforming to EN/IEC 60947-2

Selectivity category

Category B

Control type

Push-button

Mounting mode

Fixed

[Icu] rated ultimate short-circuit breaking capacity

25 kA Icu at 500 V DC L/R = 30 ms 35 kA Icu at 500 V DC L/R = 15 ms 85 kA Icu at 500 V DC L/R = 5 ms

[Ics] rated service breaking capacity

25 kA at 500 V DC (L/R = 30 ms) 35 kA at 500 V DC (L/R = 5 ms) 85 kA at 500 V DC (L/R = 5 ms)

[Icw] rated short-time withstand current

50 kA 1 s

[Icm] rated short-circuit making capacity

25 kA L/R = 30 ms 500 V DC 35 kA L/R = 15 ms 500 V DC 85 kA L/R = 5 ms 500 V DC

Sensor rating

4000 A

[Ui] rated insulation voltage

1000 V DC

[Uimp] rated impulse withstand voltage

12 kV

Power dissipation in W

4000 W

Maximum breaking time

30…75 ms

maximum closing response time

70 ms

mounting support

Backplate Rails

Upside connection

Rear

downside connection

Rear

Connection pitch

150 mm

Mechanical durability

10000 cycles without maintenance conforming to IEC 60947-2 20000 cycles with maintenance conforming to IEC 60947-2

Electrical durability

2000 cycles 500 V DC without maintenance conforming to IEC 60947-2

height

352 mm

Width

422 mm

Depth

527 mm

Net weight

60…86 kg

standards

IEC 60947-2

product certifications

ASEFA ASTA

Pollution degree

4 conforming to IEC 60664-1

Ambient air temperature for operation

-25…70 °C

Ambient air temperature for storage

-40…85 °C

Operating altitude

0...2000 m without derating 2000 m...5000 m with derating

Unit Type of Package 1

PCE

Number of Units in Package 1

1

Package 1 Height

0.1 cm

Package 1 Width

0.1 cm

Package 1 Length

0.2 cm

Package 1 Weight

172.284 kg

Warranty

18 months