HPTCOVER transformer enclosures are used in applications where the installation requires a plug-in transformer to be securely affixed to an AC wall outlet. This steel enclosure mounts over any duplex wall receptacle and attaches like an electrical wall plate. Two screws secure the cover to the enclosure to prevent unauthorized access to the plug-in transformer. With three convenient half-inch conduit knock-outs in the bottom, side, and back, the low-voltage wiring can easily exit to an alarm panel or device that requires power.