The new AD-55B power supply is a specific purpose security series product with battery charger and UPS function. Features: * Universal AC input / Full range * Protections: Short circuit / Overload / Over voltage * Battery low protections * Cooling by free air convection * 100% full load burn-in test * Fixed switching frequency at 45KHz
Note: Requires 24V battery (2x12V) for UPS function.