Determine the minimum recommended circuit breaker size based on electrical load.
Continuous loads require 125% safety factor.
Breaker Size
20 Amps
Load Current
12.50 A
Required Rating
15.63 A
Circuit breakers protect wires from overheating. They must be sized according to National Electrical Code (NEC).
If the load runs for 3 hours or more, the breaker must be rated at 125% of the continuous load current.
Breaker Size ≥ Load Amps × 1.25 (for continuous loads)