Altronix AL400ULPD4AL400ULPD4 is a multi-output power supply/charger that converts a 115VAC/60Hz input into four (4) Class 2 Rated 12VDC or 24VDC power limited outputs.InputInput 115VAC, 60Hz, 3.5A.Input fuse rated @ 3.5A/250V.Output12VDC or 24VDC selectable output.12VDC @ 4A or 24VDC @ 3A supply current.Four (4) Class 2 Rated fuse protected power limited outputs.Outputs are rated @ 3.5A.Filtered and electronically regulated outputs.Short circuit and thermal overload protection.Battery ChargingBuilt-in charger for sealed lead acid or gel type batteries.Automatic switch over to stand-by battery when AC fails.Maximum charge current: 0.7A.Zero voltage drop when switched over to battery backup.(Batteries are sold separately).SupervisionAC fail supervision (form “C” contacts).Notification trigger is selectable for 30 seconds (factory set) or 6 hours.Low battery supervision (form “C” contacts).Battery presence supervision (form “C” contacts).Visual IndicatorsAC input and DC output LED indicators.TemperatureOperating 0 C to 49 C (32 F to 120 F).Storage – 20 C to 70C ( – 4 F to 158 F).Relative Humidity 85% +/- 5%.BTU/Hr (approx.):12VDC: 25 BTU/Hr.24VDC: 37 BTU/Hr.System AC input VA requirement: 166.75VA.