Enclosed AC-DC switching power source, Single output, with battery charger (UPS) and protection against discharge. Includes low battery protection and battery polarity protection by fuse. Alarm signal for AC ok and low battery. Output of 27.6 VDC @ 2.4 Amp. Battery channel of 27.6VDC @ 1.25 Amp. With power LED indicator and overloading protection, short-circuit and surge. Cooling by free air convection. Output power ratio of 100.74W. Perfect for security systems, emergency lighting systems, alarm systems, UPS systems, central monitoring systems and access systems.