... as a relay protection, breaker control, emergency lighting power supply and battery charger.2. Specifications:A) Supply voltage: 380VAC ... m with derating3. FeaturesA) Charger: ABB Thyristor Power Converter, software Smart-Charger -2000 inside, with reversed discharging function ... human- machine interface, monitoring devices for battery and insulation. CE Approved High Voltage DC Power Supply (DCB500)