Derate Calculator -

🚫 “I have a 100A subpanel, so I can pull 100A.” No — continuous loads (over 3 hours) can only use 80% (80A). Derate calculator catches this before you trip breakers or overheat wires.

Here’s a helpful post you can use or share about , focused on electrical/load derating (common in solar, EV charging, and general electrical work). Title: Why You Can’t Use 100% of a Breaker’s Rating – And How a Derate Calculator Helps derate calculator

A 50A breaker can only continuously handle 40A. 🚫 “I have a 100A subpanel, so I can pull 100A

If you’ve ever planned a circuit for solar, EV charging, or high-power equipment, you’ve likely run into the (NEC 210.20(A) / 625.41). 🚫 “I have a 100A subpanel