The ELK-P412 is a general purpose high current power supply and battery charger. It is ideal for alarm, access control, and CCTV applications requiring up to 4 Amps. The ELK-P412 distributes 12VDC power to three (3) sets of DC power terminals, each having a voltage present indicator LED and automatic resetting overload protection. It also features a master On/Off switch and built-in low battery cut-off to protect the backup battery from deep discharging if AC power is off for an extended time.