The Securitron AQD1 Series of switching power supplies are dual voltage, UL listed, supervised units. These units are field selectable with an integrated battery charger. They provide 1 Amp at 12VDC or 24VDC continuous, with up to 16 independently controlled power limited outputs. Product Features All combinations of AQ power supplies and distribution boards are UL listed Dual voltage 12 or 24 VDC field selectable continuous output Up to 82% efficiency which results in decreased operating costs and lengthens the lifespan of electronics Tolerates brownout or overvoltage input ± 15% of nominal voltage Thermal shutdown protection with auto restart Circuit breaker protects against overcurrent and reverse battery faults Integrated battery charging circuit prevents overvoltage on locking devices Available with a single relay fire trigger or individually triggered relayed outputs