Many switch symbols include a circle to represent the switch location. For example, a single-pole switch is often shown with a capital “S”, while a triple-pole switch uses a capital “S” with a small. Always check with your local electrical inspector about the specific code requirements in your area. How can I relabel an electrical panel if I don't know for sure which switches are which? Make a diagram of your home and methodically go from room by room, flipping one breaker at a time to see what. Electrical symbols show where lighting, outlets, switches, and other electrical elements are placed in a building. And today I'm going to outline my systematic approach to quickly label a home electrical panel directory. When you clearly mark each breaker, you reduce the chances of delay during an emergency. The most commonly used electrical blueprint symbols including plug outlets, switches, lights and other special symbols such as door bells and smoke. With Cedreo's built-in library of standardized electrical symbols (that you can customize by size, shape, and color), you can create detailed, professional layouts that align with your brand and meet each project's requirements. Why trust us? Here at Cedreo, we've got 20+ years of experience.