![]() Generally speaking, you will need 1 AWG copper or 2/0 aluminum conductors for this to work. What size breaker do I need for a 50 hp motor?įull-Load Current and Circuit Protection Data for Three-Phase AC Motors Motor Horsepower This is your target resistance, measured in ohms. If, for instance, 120 volts will act on the cable, and you want 30 amps to run through it: 120 / 30 = 4. How do you determine cable size?ĭivide the voltage running through the cable by your target current. Hence the cable rating formula can be written as, Cable size = 1.5 x Full Load Current.Ĥ80V 3 Phase Delta is a 3 Wire power configuration and does not include a neutral wire. What size wire do I need for 3 phase? Three Phase (230 Volt) – Wire Size Selection Guide*Ĭable size calculation formula: The cable size is equal to the 1.5 times of the full load current of the motor/load. ![]() What size wire do I need for a 10 hp motor?Įlectrical motor wiring data – NEMA amps, starter size, HMCP size for motors ranging 1/2 to 500 hp Motor HP 8 How much horsepower does a single phase electrician have?.7 How many volts does a 3 phase motor need?.6 Why is there no neutral wire in 3 phase?.5 What size wire do I need for a 2 hp motor?.4 What size breaker do I need for a 50 hp motor?.2 What size wire do I need for 3 phase?. ![]()
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