Electrical boxes often become loose or unstable when wall openings are cut too large. First, turn off power and remove the outlet. I attached a picture for details. Welcome! What's going on with your Device? New! Hello, I am a real. The distribution box has the characteristics of small size, simple installation, special technical performance, fixed location, unique configuration function, not limited by the site, relatively common application, stable and reliable operation, high space utilization, less land occupation and. The distribution box has the characteristics of small size, simple installation, special technical performance, fixed location, unique configuration function, not limited by the site, relatively common application, stable and reliable operation, high space utilization, less land occupation and. There are also new-work plastic boxes with interior-side screws built in, if you want to do it the right way use the parts within their design intent. Then mud the gap between the box and drywall and use a large trim plate if you need it. Ask your local. During the construction and installation process, the methods to solve and prevent the failure of the distribution box include: Quality inspection: Make sure the distribution box and its components meet the standards, check whether the wiring is firm, and whether the materials are qualified. Check the electrical load and ensure that the sensors do not exceed the 10 Amp maximum.