Range

ComPacT new generation

Product name

ComPacT NSX new generation

Device short name

NSX400HB2

Product or component type

Circuit breaker

Device application

Motor protection

Poles description

3P

Protected poles description

3D

[In] rated current

320 A at 65 °C

[Ue] rated operational voltage

690 V AC 50/60 Hz

Network type

AC

Network frequency

50/60 Hz

Suitability for isolation

Yes conforming to EN/IEC 60947-2

utilisation category

Category A

[Icu] rated ultimate short-circuit breaking capacity

100 kA Icu at 500 V AC 50/60 Hz conforming to IEC 60947-2 100 kA Icu at 525 V AC 50/60 Hz conforming to IEC 60947-2 100 kA Icu at 660/690 V AC 50/60 Hz conforming to IEC 60947-2

Performance level

HB2 100 kA 690 V AC

Trip unit name

MicroLogic 2.3 M

Trip unit technology

Electronic

Trip unit protection functions

LSoI

Control type

Toggle

Circuit breaker mounting mode

Fixed

[Ui] rated insulation voltage

800 V AC 50/60 Hz

[Uimp] rated impulse withstand voltage

8 kV

[Ics] rated service short-circuit breaking capacity

100 kA at 500 V AC 50/60 Hz conforming to IEC 60947-2 100 kA at 525 V AC 50/60 Hz conforming to IEC 60947-2 100 kA at 660/690 V AC 50/60 Hz conforming to IEC 60947-2

Mechanical durability

15000 cycles

Electrical durability

12000 cycles at 440 V In/2 6000 cycles at 440 V In 6000 cycles at 690 V In/2 3000 cycles at 690 V In

Power dissipation per pole

12.29 W

mounting support

Backplate

Mounting position

Horizontal and vertical Flat on the back

Upside connection

Front

downside connection

Front

Connection pitch

45 mm

Protection type

L : for overload protection (long time) So : for short time short-circuit protection with fixed delay I : for instantaneous short-circuit protection

Trip unit rating

320 A at 65 °C

Motor tripping class

5 20 10

complementary motor protection

Phase unbalance

Long-time pick-up adjustment type Ir (thermal protection)

Adjustable 9 settings

[Ir] long-time protection pick-up adjustment range

160...320 A

Long-time protection delay adjustment type tr

Fixed

[tr] long-time protection delay adjustment range

120 s at 1.5 x Ir for trip class 5 6.5 s at 6 x Ir for trip class 5 5 s at 7.2 x Ir for trip class 5 240 s at 1.5 x Ir for trip class 10 13.5 s at 6 x Ir for trip class 10 10 s at 7.2 x Ir for trip class 10 480 s at 1.5 x Ir for trip class 20 26 s at 6 x Ir for trip class 20 20 s at 7.2 x Ir for trip class 20

Thermal memory

20 minutes before and after tripping

Short-time protection pick-up adjustment type Isd

Adjustable 9 settings

[Isd] Short-time protection pick-up adjustment range

5...13 x Ir

Short-time protection delay adjustment type tsd

Fixed

Instantaneous protection pick-up adjustment type Ii

Fixed

[Ii] instantaneous protection pick-up adjustment range

4800 A

earth-leakage protection

Without

Zone selective interlocking ZSI

Without

Number of slots for electrical auxiliaries

6 slot(s)

Local signalling

Flashing LED (green) for ready to operate LED 95 % Ith (red) for temperature over set point

Width (W)

140 mm

Height (H)

255 mm

Depth (D)

110 mm

Net weight

6.05 kg

standards

EN/IEC 60947

product certifications

CCC EAC Marine

Overvoltage category

Class II

Electrical shock protection class

Class II

Pollution degree

3 conforming to IEC 60664-1

IP degree of protection

IP40 conforming to IEC 60529

IK degree of protection

IK07 conforming to IEC 62262

Ambient air temperature for operation

-25…70 °C

Ambient air temperature for storage

-50…85 °C

Relative humidity

0…95 %

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

15.2 cm

Package 1 Width

15.2 cm

Package 1 Length

29.2 cm

Package 1 Weight

5.42 kg

Warranty

18 months