What Size Is A Standard Fuse? Standard sizes for fuses and fixed trip circuit breakers, per 240.6, are 15, 20, 25, 30, 35, 40, 45, 50, 60, 70, 80, 90, 100, 110, 125, 150, 175, 200, 225, 250, 300, 350, 400, 450, 500, 600, 700, 800, 1000, 1200, 1600, 2000, 2500, 3000, 4000 5000, and
How Do You Size A Disconnect? Examine the appliance manufacturer nameplate on the appliance. Determine the horsepower rating of the appliance. … Convert from volt-amps, watts or kilowatts to horsepower. … Select a disconnect switch with the same or greater horsepower rating as the appliance. How do you size a PV disconnect? Rating Type Rating