The D2401-AA is specially designed for powering 24VDC magnetic fire door releases but can be used for anything requiring 24VDC 1A without battery back-up. Capable of powering up to 8 x double fire doors or 16 x single fire doors, based on 50mA each, the D2401-AA also has an opto-relay output to remotely signal if the mains or the 24 VDC output fails and an easily visible LED indicator to provide quick visual status indication. The unit is housed in a compact, 1.5mm steel box, attractively styled to blend into the decor of hotels, offices, hospitals and other large buildings, with rounded corners to make cleaning even easier. The D2401-AA has a neat, compact design and the easily visible, green, status indicator LED and a number of the cable knock-outs makes installation easy. D2401-AA Power Supply Unit Dimensions 178 x 110 x 68mm