With your tester, check the flow of electricity at each wire before it enters the box. This comprehensive guide will walk you through the process of testing your breaker box using a multimeter, equipping you with the knowledge and confidence to perform this essential task. Typically, it includes hot (live), neutral, and ground wires. The electrical panel, sometimes referred to as a breaker box, is the control center where the main power line enters the home and. Your distribution box, the electrical system's core in your home, efficiently distributes power to various circuits. Here are key maintenance tips to keep your distribution box in optimal. Check for signs of corrosion or rust. Inspect for any physical damage to the enclosure. Ensure that all labels and warning signs are legible.