... power supply and battery charger.2. Specifications:A) Supply voltage: 380VAC± 15%(3 phases)B) Output rated voltage DC: 24V, 48V, 60V, 110V, 220V ... , high reliability, long life, maintenance-free4. System Configuration:A) Charger: High-frequency switching power module of Emerson HD series or E&C ... devices for battery and insulation. CE Approved High Frequency Switching DC Power Supply (DCB511G)