Schneider-Electric
49814

range of product: ISFT250...630

range: FuPact

product name: FuPacT ISFT

device short name: ISFT250

product or component type: Fuse-switch disconnector

device application: Distribution; Equipment protection, monitoring and control

poles description: 3P

protected poles description: 3f

fuse type: DIN

fuse size: NH1

network type: DC; AC

network frequency: 50/60 Hz

control type: Fuse carriers handle

[Ith] conventional free air thermal current: 175 A ( 70 °C ) horizontal; 175 A ( 70 °C ) vertical; 188 A ( 65 °C ) horizontal; 188 A ( 65 °C ) vertical; 200 A ( 60 °C ) horizontal; 200 A ( 60 °C ) vertical; 213 A ( 55 °C ) horizontal; 213 A ( 55 °C ) vertical; 225 A ( 50 °C ) horizontal; 225 A ( 50 °C ) vertical; 238 A ( 45 °C ) horizontal; 238 A ( 45 °C ) vertical; 250 A ( 40 °C ) power dissipation per fuse: 23 W; 250 A ( 40 °C ) horizontal; 250 A ( 40 °C ) vertical

[Ithe] conventional enclosed thermal current: 250 A at 40 °C, Power dissipation per fuse: 23 W

rated duty: Uninterrupted

[Ui] rated insulation voltage: 800 V AC 50/60 Hz; 800 V DC

[Uimp] rated impulse withstand voltage: 8 kV

[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

[Ie] rated operational current: AC-21B: 250 A AC 50/60 Hz 220/240 V; AC-21B: 250 A AC 50/60 Hz 380/415 V; AC-21B: 250 A AC 50/60 Hz 440/480 V; AC-21B: 250 A AC 50/60 Hz 500 V; AC-21B: 250 A AC 50/60 Hz 660/690 V; AC-22B: 250 A AC 50/60 Hz 220/240 V; AC-22B: 250 A AC 50/60 Hz 380/415 V; DC-21B: 250 A DC 125 V 1 pole; DC-21B: 250 A DC 220 V 1 pole; DC-21B: 250 A DC 440 V 2 poles in series

[Im] rated making and breaking 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

suitability for isolation: Yes

visible break: Yes

contact operation: Single-break

mechanical durability: 1600 cycles

electrical durability: AC-21B: 200 cycles 690 V AC 50/60 Hz; AC-22B: 200 cycles 415 V AC 50/60 Hz

provision for padlocking: 3 padlocks

mounting support: Busbars

mounting support: Busbars

mounting location: Side by side

design: Horizontal design

connections - terminals: Push-on 250 A 60 mm

height: 246 mm

width: 186 mm

depth: 110 mm

standards: IEC 60269-2-1; EN/IEC 60947-1; EN/IEC 60947-3

product certifications: KEMA-KEUR

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

compatibility code: ISFT250...630

EU RoHS Directive: Pro-active compliance (Product out of EU RoHS legal scope)