Highly efficient, three-phase UPS with modern functions, excellent specs and durable electrical equipment, Serial RS232, RS485 and USB interfaces, dry contacts, 3 x internal battery string, SNMP network card for simple monitoring and administration on Windows available separately. Runtime at 20 kW: approx. 15 min Runtime at 15 kW: approx. 22.5 min Runtime at 10 kW: approx. 38.5 min Please note: Important: the UPS must be connected by a professional! Optional monitoring and administration of the UPS only possible on Windows!