DRS-480 is a 480W AC/DC DIN rail type security power supply series . In addition to the primary output, there is an additional charger circuit that will automatically adjust charge current depending on the primary output current. DRS-480 accepts the universal input between 90VAC and 305VAC, and supports output 24VDC, 36VDC, and 48VDC nominal Systems. With high efficiency up to 93.5%, it can operate with free air convection cooling under -30°Cthrough 70°Cambient temperature. In addition to the key protection features such as overload protection, over voltage protection, battery low voltage disconnect, and battery reverse polarity protection, the DRS-480 also provides Form-C contacts and LED indicator alarm signais for AC-fail, battery low, charger fail, and DC-OK to allow easy intégration into security Systems that comply with local alarm codes.