AL400ULXR is a power supply/charger that converts a 115VAC/60Hz input into a single 12VDC or 24VDC Class 2 Rated power-limited output.InputInput 115VAC, 60Hz, 3.5A.Input fuse rated @ 3.5A/250V.Output12VDC or 24VDC selectable output.Burglar Alarm Applications(UL 603):12VDC = 11.5VDC-13VDC.24VDC = 23VDC-26VDC.12VDC @ 4A or 24VDC @ 3A supply current.Class 2 Rated power limited output.Filtered and electronically regulated output.Short circuit and thermal overload protection.Battery BackupBuilt-in charger for sealed lead acid or gel type batteries.Automatic switch over to stand-by battery when AC fails.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, DC output and Battery LED indicators.TemperatureOperating 0° C to 49° C (32° F to 120° F).Storage - 20° C to 70°C ( - 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: 402.5VA