Schneider-Electric
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49821
Fuse switch disconnector body ISFT - 3Poles 3 F - DIN NH2 - 400 A
Schneider Electric
Characteristics
Main
Range FuPact
Product name FuPacT ISFT
Device short name ISFT400
Product or component type Fuse-switch disconnector
Device application Distribution
Equipment protection, monitoring and control
Poles description 3P
Number of fuse carriers 3
Fuse type DIN
Fuse size NH2
Suitability for isolation Yes
Visible break Yes
[Ith] conventional free air thermal current 280 A ( 70 °C ) horizontal
280 A ( 70 °C ) vertical
300 A ( 65 °C ) horizontal
300 A ( 65 °C ) vertical
320 A ( 60 °C ) horizontal
320 A ( 60 °C ) vertical
340 A ( 55 °C ) horizontal
340 A ( 55 °C ) vertical
360 A ( 50 °C ) horizontal
360 A ( 50 °C ) vertical
380 A ( 45 °C ) horizontal
380 A ( 45 °C ) vertical
400 A ( 40 °C ) power dissipation per fuse: 34 W
400 A ( 40 °C ) horizontal
400 A ( 40 °C ) vertical
[Ithe] conventional enclosed thermal current 400 A at 40 °C, Power dissipation per fuse: 34 W
[Ue] rated operational voltage 440 V DC
690 V AC 50/60 Hz
800 V AC 50/60 Hz AC-20
800 V DC DC-20
[Ui] rated insulation voltage 800 V AC 50/60 Hz
800 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
DC-21B: 400 A at 125 V DC (1 pole)
DC-21B: 400 A at 220 V DC (1 pole)
DC-21B: 400 A at 440 V DC (2 poles in series)
Complementary
[Icm] Rated short-circuit making capacity Icm 105 kA at 500 V
Icm 105 kA at 690 V
Icn 50 kA at 500 V
Icn 50 kA at 690 V
Icm 105 kA at 415 V
Icn 50 kA at 415 V
Rated duty Uninterrupted
Control type Fuse carriers handle
Provision for padlocking 3 padlocks
Mounting support 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 415 V AC 50/60 Hz
Connections - terminals Hook-on 400 A 100 mm
Width 210 mm
Height 271 mm
Depth 127 mm
Standards EN/IEC 60947-3
EN/IEC 60947-1
IEC 60269-2-1
Product certifications KEMA-KEUR
Environment
IP degree of protection IP20 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 -25…70 °C
Ambient air temperature for storage -50…85 °C
Packing Units
Unit Type of Package 1 PCE
Number of Units in Package 1 1
Offer Sustainability
EU RoHS Directive Pro-active compliance (Product out of EU RoHS legal scope)
print EU RoHS Declaration
Contractual warranty
Warranty 18 months