The following is a fuse box diagram showing important aspects of a circuit system with multiple phases. As we see here, the incoming power line is 120/240V with a maximum 200A current. The main circuit breaking is also installed inside the home fuse box, which is then connected to MTC, which in turn is connected to a 15 or 20V Circuit Breaker. In the following fuse box, we can also see a neutral bus connected to neutral wiring. You can also customize such fuse box diagrams using EdrawMax Online. If you have such images ready, you can simply import them and start labeling them; otherwise, you can also use the electrical symbols to create a similar one from scratch.