Planning with SIVACON 8 PS - Siemens

Further information about planning7.1 Dimensioning and selectionWhen you decide on your short-circuit protection via fuses and circuit-breakers you must notexceed the specified short-circuit ratings of the busbar trunking systems. It depends on thelevel of expected short-circuit current, whether a current limiting protective device is requiredand what short-circuit breaking capacity the protective device must have.An overview of the circuit-breakers which are able to provide short-circuit and overloadprotection (400 V and 50 Hz) for the corresponding busbar system appears in the tablebelow.The following applies:I"k ≤ Icc ≤ IcuI''kIccIcu= anticipated short-circuit current at installation location= rated conditional short-circuit current of the trunking run= rated short-circuit breaking capacity of the circuit-breakerRated current [A] Busbar systems 1)Breaker type/MarketEuropeAsia/Middle East/South EastIcu up to 65 kAIcu 100 kA160 BD2A/BD2C 3VL 3VT 3VL250 BD2A/BD2C 3VL 3VT 3VL315 BD2A/BD2C 3VL 3VT 3VL400 BD2A/BD2C 3VL 3VT 3VL500 BD2A/BD2C 3VL 3VT 3VL630 BD2A/BD2C 3VL 3VL 3VL800 BD2A/BD2C 3WL 3WT 3WL1000 BD2A/BD2C 3WL 3WT 3WL1100 LDA 3WL 3WT 3WL1250 BD2A/BD2C, LDA, LXA/LXC 3WL 3WT 3WL1350 LRC 3WL 3WT 3WL1400 LXC 3WL 3WT 3WL1550 LRC 3WL 3WT 3WL1600 LDA/LDC 3WL 3WT 3WL1700 LRC 3WL 3WT 3WL2000 LDA/LDC 3WL 3WT 3WL2500 LDA 3WL 3WT 3WL2800 LDC 3WL 3WT 3WL3000 LDA 3WL 3WT 3WL3150 LRC 3WL 3WT 3WL3200 LXA/LXC 3WL 3WT 3WL3400 LDC 3WL 3WL 3WL3700 LDA 3WL 3WL 3WL4000 LDA 3WL 3WL 3WL4400 LDC 3WL 3WL 3WL4500 LXA 3WL 3WL 3WL5000 LDC 3WL 3WL 3WL6300 LRC 3WL 3WL 3WLPlanning with SIVACON 8 PSPlanning Manual, 10/2007, A5E01541101-01 237