UPS system incl. 1 battery string 7 Ah, scalable up to 2 Parallel switching of up to 4 systems (3+1) Touchscreen colour display Internal, automatic bypass SNMP interface (Ethernet), ModBus, relay contacts (4 x input, 4 x output) Runtime (20 kW load): approx. 3 min Runtime (10 kW load): approx. 8 min Incl. start-up service (check of all cabling, commissioning of UPS as well as function test) When used at full 20 kW power capacity, one additional battery module should be ordered. The UPS must be installed by a qualified electrician. Please note the recommended breakers and wire gauges! Please note that increased delivery costs may apply due to product weight