There are a lot of good reasons to label the circuit breakers in your electrical panel, and none that I could think of not to. By placing labels on each circuit in the panel you can easily shut down a faulty circuit in a hurry if there is a problem. Labels also make it easy to shut down a particular area if electrical work needs to be done in that area.
The typical electrical panel has written on labels and directories that are barely legible. Many have been crossed out, written over or just plain wrong. This happens over times as things are added or changed.
Here is the perfect solution to that problem. Magnetic Labels for your Electrical Panel. With this package you get 42 prepared labels and 6 blanks that you can write on. It makes the electric panel look neat and with easily read labels, safer. The greatest advantage is the labels can be moved around if any changes are made to the panel.
Sadly, I cannot offer these labels anymore. The company will not sell directly to me and if I pay a supplier it pushed the price beyond what I think is reasonable for you, my customer, to pay. I will try and find something else to substitute if it is out there.