Range

FuPacT

Product name

FuPacT ISFT

Device short name

ISFT400

Product or component type

Fuse-switch disconnector

Device application

Equipment protection, monitoring and control Distribution

Signalling function

Separated fuse monitor

Poles description

3P

Number of fuse carriers

3

Fuse type

DIN

Fuse size

NH2

Suitability for isolation

Yes conforming to EN/IEC 60947-3

Visible break

Yes

Contact position indicator

Yes

[Ith] conventional free air thermal current

400 A ( 40 °C ) power dissipation per fuse: 34 W

[Ithe] conventional enclosed thermal current

400 A at 40 °C, Power dissipation per fuse: 34 W

Maximum power dissipation per pole

44 W

[Ue] rated operational voltage

690 V AC 50/60 Hz 440 V DC 800 V AC 50/60 Hz AC-20 800 V DC DC-20

[Ui] rated insulation voltage

1000 V AC 50/60 Hz 1000 V DC

[Uimp] rated impulse withstand voltage

8 kV

[Ie] rated operational current

AC-21B: 400 A at 220/240 V AC 50/60 Hz AC-21B: 400 A at 380/415 V AC 50/60 Hz AC-21B: 400 A at 440/480 V AC 50/60 Hz AC-21B: 400 A at 500 V AC 50/60 Hz AC-21B: 400 A at 660/690 V AC 50/60 Hz AC-22B: 400 A at 220/240 V AC 50/60 Hz AC-22B: 400 A at 380/415 V AC 50/60 Hz AC-22B: 400 A at 440/480 V AC 50/60 Hz AC-22B: 400 A at 500 V AC 50/60 Hz AC-22B: 400 A at 660/690 V AC 50/60 Hz DC-21B: 400 A at 220 V DC (3 poles in series) DC-21B: 400 A at 440 V DC (3 poles in series) DC-22B: 400 A at 220 V DC (3 poles in series)

[Iq] Breaking capacity with fuses (kA RMS)

80 kA at 415 V (AC) 80 kA at 500 V (AC) 25 kA at 690 V (AC)

[Icw] rated short-time withstand current

15.2 kA for 1 s

[Icm] Rated short-circuit making capacity

30.4 kA at 690 V

Rated duty

Uninterrupted

Control type

Fuse carriers handle

Provision for padlocking

Lead seal

Mounting position

Vertical Horizontal

Mounting mode

Fixed

Mounting support

Mounting plate Busbars

Mounting location

Side by side

contact operation

Single-break

Mechanical durability

1000 cycles

Electrical durability

AC-21B: 200 cycles 690 V AC 50/60 Hz AC-22B: 200 cycles 690 V AC 50/60 Hz AC-23B: 200 cycles 415 V AC 50/60 Hz

Connections - terminals

Screw connection downstream M10 400 A Hook-on upstream 400 A 60 mm

Tightening torque

8 N.m for terminal

Width

210 mm

height

306 mm

Depth

130 mm

Net weight

2 kg

standards

EN/IEC 60947-1 EN/IEC 60947-3

product certifications

CE CCC EAC

Electrical shock protection class

Class II front face

IP degree of protection

IP3x front face: conforming to IEC 60529

IK degree of protection

IK07 conforming to EN 50102

Pollution degree

3 conforming to IEC 60947

Ambient air temperature for operation

-20…70 °C

Ambient air temperature for storage

-50…85 °C

Unit Type of Package 1

PCE

Number of Units in Package 1

1

Package 1 Height

16 cm

Package 1 Width

23.5 cm

Package 1 Length

33 cm

Package 1 Weight

3.34 kg

Unit Type of Package 2

S04

Number of Units in Package 2

3

Package 2 Height

30 cm

Package 2 Width

40 cm

Package 2 Length

60 cm

Package 2 Weight

10.636 kg

Warranty

18 months