Range
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FuPacT
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Product name
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FuPacT ISFL
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Device short name
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ISFL250
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Product or component type
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Fuse-switch disconnector
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Device application
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Equipment protection, monitoring and control
Distribution
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Signalling function
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Separated fuse monitor
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Poles description
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1 x 3P switchable
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Number of fuse carriers
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3
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Fuse type
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DIN
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Fuse size
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NH1
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Suitability for isolation
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Yes conforming to EN/IEC 60947-3
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Visible break
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Yes
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Contact position indicator
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Yes
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[Ith] conventional free air thermal current
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250 A ( 40 °C ) power dissipation per fuse: 23 W
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[Ithe] conventional enclosed thermal current
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250 A at 40 °C, Power dissipation per fuse: 23 W
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Maximum power dissipation per pole
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32 W
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[Ue] rated operational voltage
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690 V AC 50/60 Hz
800 V AC 50/60 Hz AC-20
800 V DC DC-20
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[Ui] rated insulation voltage
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1000 V AC 50/60 Hz
1000 V DC
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[Uimp] rated impulse withstand voltage
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8 kV
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[Ie] rated operational current
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AC-21B: 250 A at 220/240 V AC 50/60 Hz
AC-21B: 250 A at 380/415 V AC 50/60 Hz
AC-21B: 250 A at 440/480 V AC 50/60 Hz
AC-21B: 250 A at 500 V AC 50/60 Hz
AC-21B: 250 A at 660/690 V AC 50/60 Hz
AC-22B: 250 A at 220/240 V AC 50/60 Hz
AC-22B: 250 A at 380/415 V AC 50/60 Hz
AC-22B: 250 A at 440/480 V AC 50/60 Hz
AC-22B: 250 A at 500 V AC 50/60 Hz
AC-23B: 250 A at 220/240 V AC 50/60 Hz
AC-23B: 250 A at 380/415 V AC 50/60 Hz
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