UPS system (batteries not included) 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) Connection for external battery rack Incl. start-up service (check of all cabling, commissioning of UPS as well as function test) 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