Modular single busbar switchgear with integral gas insulation, up to 24 Kv Rated voltage: up to 24 kV Rated current of main busbar: up to 2000 A Rated current of shunt: up to 2000 A Rated frequency: 50/60 Hz Short-circuit current: up to 25 kA (1-3 s) Internal arc classification: IAC AFL(R) 25 kA 1 s Main international and European standards, legislation and specifications: IEC