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Wire size is based on the amperage that the load requires. For an accurate answer the motor amperage is needed. That said you can get an approximate figure by this method. 1 HP = 746 watts. This formula for amperage when HP is known. HP x 746/1.73 x Voltage x %Eff x pf. Use a Efficiency % at 90 and a power factor of .85. A horse power of 5 x 746 = 3730/1.73 x 220 x 90% x .85 = 12.81 amps. Code states that motor supply conductors have to be 125% of the full load amps = 16 amps. Code also states that conductors can only be loaded to 80% on continuous load which a motor falls into. A #12 copper wire 90 degree insulation is rated at 20 amps x 80% = 16 amps. A #12 wire will do the job. It will need a 40 amp three pole breaker, 50 amp non time delay fuse or a 30 amp time delay fuse to feed the motor.
What else can I help you with?
Can you replace a three phase motor 3 Hp RPM 1420 with a single phase motor for a planer?
Probably not. The single phase three horse power motor will be much larger in physical size than its three phase counterpart, and will probably not fit.
What is the cable size for 600V 3 phase ac motor?
you need the current of motor or the KW/HP rating
What size motor do you need to run a compressor 2 stage 80 gallon tank i have a 3 phase on it and want to change motor?
You probably need a 5hp or 7hp motor. Look for HP rating o the 3 phase motor and select the same for single phase. 3 phase has same power but is more efficient at electricity use. Also consider a 3 phase converter. It allows a 3 phase motor to run on single phase service.
Can a 380volt's 3 phase motor can be converted to 230volt's three phase motor?
Only if you want to damage it. "277" Volt 3-phase will usually mean 277 from each phase to neutral, and 480 from phase to phase. By "230 3-phase", you likely mean 120 phase-to-neutral, and 208 phase-to-phase. If you really mean 230, then you are probably NOT talking about a three phase motor.
By how many amps may a three phase motor exceed its data plate rating?
On a normal three phase motor on the nameplate there is a value in the S.F. box. This is the service factor. Depending on the size of the motor this value will vary. Smaller size motors usually have a service factor of 1.15.See related links below.
What is the cable size for 1.5KW 3 phase induction motor?
Sir, what is the cable size for 1.5kw 3phase induction motor 400v?
Can you replace a three phase motor 3 Hp RPM 1420 with a single phase motor for a planer?
Probably not. The single phase three horse power motor will be much larger in physical size than its three phase counterpart, and will probably not fit.
Can you run 22 kw 600v 3 phase induction motor?
Yes this size motor can be operated by bringing a 600 volt three phase supply to it.
What is the cable size for 600V 3 phase ac motor?
you need the current of motor or the KW/HP rating
What size motor do you need to run a compressor 2 stage 80 gallon tank i have a 3 phase on it and want to change motor?
You probably need a 5hp or 7hp motor. Look for HP rating o the 3 phase motor and select the same for single phase. 3 phase has same power but is more efficient at electricity use. Also consider a 3 phase converter. It allows a 3 phase motor to run on single phase service.
How do you select earthing conductor size of any motor panel etc?
The ground wire size is determined from the current carrying capacity of the motor feeders.
What size isolator for an 11kW 3 phase motor?
For an 11kW 3 phase motor, you would typically need a isolator with a current rating of at least 18-20 amps per phase. It's important to also consider the starting current of the motor and select an isolator that can handle the motor's inrush current. Make sure to consult with a qualified electrician to determine the appropriate isolator size for your specific application.
Can a 380volt's 3 phase motor can be converted to 230volt's three phase motor?
Only if you want to damage it. "277" Volt 3-phase will usually mean 277 from each phase to neutral, and 480 from phase to phase. By "230 3-phase", you likely mean 120 phase-to-neutral, and 208 phase-to-phase. If you really mean 230, then you are probably NOT talking about a three phase motor.
By how many amps may a three phase motor exceed its data plate rating?
On a normal three phase motor on the nameplate there is a value in the S.F. box. This is the service factor. Depending on the size of the motor this value will vary. Smaller size motors usually have a service factor of 1.15.See related links below.
What size breaker for a 208 volt single phase motor that pulls 1.4 amps?
For a 208 volt single phase motor that pulls 1.4 amps, you would typically use a 2 amp breaker for proper protection. This allows for a small safety margin above the motor's operating current to prevent nuisance tripping. Be sure to consult the motor's manufacturer specifications for the most accurate breaker size.
How do you select fuse for motor?
There should be a label on the motor with that information. If not, have the motor checked by a qualified electrician or electronic technician to determine the proper fuse size.
What size wire do you need for 2HP motor with 120 volts?
12/2 with ground.
