Identifying electrical circuits
The circuits on the electrical panel in my house aren’t marked on the panel cover. Is there an easy way to pinpoint which circuit handles which loads, or do I have to go on a hunting expedition?
B.W.: Circuit tracers exist, but due to their high cost (about $1000), I just check outlets and workboxes to see which breaker controls power to them. Most outlets and lights are grouped geographically or by function. Lighting is often run on 15-amp breakers, with outlets on 20-amp breakers (especially with arc-fault outlets needing to be separated from lighting). Bathroom outlets are usually on one circuit for cost-effective GFCI protection. Tone generators that can trace the wiring within walls are $60 to $300, but they can be finicky and are more useful for locating individual runs of wiring than whole circuits.