Range

MasterPacT

Product name

MasterPact NW

circuit breaker name

MasterPact NW12H1

Product or component type

Circuit breaker

Device application

Power distribution protection

Poles description

4P

Neutral position

Left

Control unit

Without control unit

[In] rated current

1250 A at 40 °C

Performance type

H1 65 kA 440 V AC

[Ue] rated operational voltage

690 V AC 50/60 Hz

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

65 kA at 220/415 V AC 50/60 Hz 65 kA at 440 V AC 50/60 Hz 65 kA at 525 V AC 50/60 Hz 65 kA at 690 V AC 50/60 Hz

[Ics] rated service breaking capacity

65 kA at 220/415 V AC 50/60 Hz 65 kA at 440 V AC 50/60 Hz 65 kA at 525 V AC 50/60 Hz 65 kA at 690 V AC 50/60 Hz

[Icw] rated short-time withstand current

65 kA 1 s 36 kA 3 s

[Icm] rated short-circuit making capacity

143 kA 220/415 V AC at 50/60 Hz 143 kA 440 V AC at 50/60 Hz 143 kA 525 V AC at 50/60 Hz 143 kA 690 V AC at 50/60 Hz

Sensor rating

630 A 1250 A

[Ui] rated insulation voltage

1000 V AC 50/60 Hz

[Uimp] rated impulse withstand voltage

12 kV

Power dissipation in W

100 W

Maximum breaking time

25 ms

maximum closing response time

70 ms

mounting support

Backplate Rails

Upside connection

Front Rear

downside connection

Front Rear

Connection pitch

115 mm

Mechanical durability

12500 cycles without maintenance 25000 cycles with maintenance

Electrical durability

10000 cycles 440 V AC 50/60 Hz without maintenance conforming to EN/IEC 60947-2 10000 cycles 690 V AC 50/60 Hz without maintenance conforming to EN/IEC 60947-2 AC-23A: 10000 cycles 440 V AC 50/60 Hz without maintenance conforming to EN/IEC 60947-3 AC-23A: 10000 cycles 690 V AC 50/60 Hz without maintenance conforming to EN/IEC 60947-3 AC-3: 6000 cycles 440/690 V AC 50/60 Hz without maintenance conforming to EN/IEC 60947-3

height

352 mm

Width

537 mm

Depth

297 mm

Net weight

65 kg

standards

EN/IEC 60947-1 EN/IEC 60947-2

product certifications

CE CCC EAC

IP degree of protection

IP30 conforming to IEC 60529

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

30.5 cm

Package 1 Width

29.5 cm

Package 1 Length

49.5 cm

Package 1 Weight

47.252 kg

Warranty

18 months