Planning with SIVACON 8 PS - Siemens

Planning with LXA/LXC5.2 System components5.2.11.3 Tap-off units with fuse switch disconnector up to 630 ARated currentsPlug-in tap-off units in three sizes are available for selection:● For 125 to 250 A● For 400 A● For 630 AFigure 5-7Tap-off units with fuse switch disconnector up to 630 AShort-circuit ratingIf you are using fuse links compliant with IEC standard the short-circuit rating Icf of the tap-offunits will be 100 kA (BS standard: 80 kA).Assembly componentsThe fuse switch disconnectors are available for fuses compliant with IEC or BS standard andcan be supplied as 3-pole or 4-pole units.Cable connectionsBolts are used to connect cables with pre-fabricated cable lug. For the small size themaximum compatible cross section per phase is up to 150 mm 2 , for the other sizes it is2 x 120 mm 2 up to a maximum of 2 x 240 mm 2 .IEC/BS type designationThe type designation for tap-off units with fuse switch disconnector up to 630 A is:LK-AK./FSH-......Planning with SIVACON 8 PSPlanning Manual, 10/2007, A5E01541101-01 165