— Circuit Breaker/Fuse Sizing
Minimum standard overcurrent device rating for a load, per NFPA 70 (National Electrical Code) Article 210.19/210.20 — continuous loads (on for 3 hours or more) require the device to be rated at least 125% of the load current; non-continuous loads only need 100%. The result is rounded up to the next standard rating from NEC Table 240.6(A).