Model AL400ULPD4 power supply/charger converts a 115VAC 60Hz input, to a 4 amp of continuous supply current @ 12VDC or 3 amp of continuous supply current @ 24VDC distributed via four (4) fuse protected Class 2 Rated power limited outputs. - 12VDC or 24VDC selectable output. - 4 amp @ 12VDC or 3 amp @ 24VDC of continuous supply current output. - Four (4) fuse protected Class 2 Rated power limited outputs. - Fuses are rated @ 3.5 amp - 115VAC 60Hz, 1.45 amp input. - Filtered and electronically regulated outputs. - Short circuit and thermal overload protection. - Built-in charger for sealed lead acid or gel type battery backup. - Maximum charge current .7 amp. - Zero voltage drop upon transfer to battery backup. - AC input and DC output LED indicators. - AC fail supervision (form "C" contact rated @ 1 amp 28VDC). - Low battery and battery presence supervision (form "C" contact rated @ 1 amp 28VDC).