What size breaker do I need for a 40 hp motor?
Full-Load Current and Circuit Protection Data for Three-Phase AC Motors
|Motor Horsepower||Breaker Size|
|20||230 V 460 V||100 50|
|25||230 V 460 V||100 50|
|30||230 V 460 V||125 70|
|40||230 V 460 V||175 100|
How do you convert HP to amps?
How to Convert Horsepower to Amps
- Amps = (Horsepower × 746) ÷ Efficiency ÷ Volts.
- Watts = Horsepower × 746.
- Watts = Wattsη
- Amps = Watts ÷ Volts.
- Amps = HP × 746V × η × PF.
How many amps does a 25 hp motor draw?
AMP DRAW BASED ON HORSEPOWER
|HP||1 Phase Amps||3 Phase Amps|
|115 volt||208 volt|
What wire do you use for 20 amps?
A 20-amp circuit, protected by a 20-amp breaker or fuse, must be served by 12-gauge or 10-gauge wire.
How many HP is 15 amps?
Common Amps to Horsepower Conversions
|15 A||2.17 HP||90%|
|20 A||2.9 HP||90%|
|25 A||3.62 HP||90%|
|30 A||4.34 HP||90%|
How many amps is 60 horsepower?
Here are the Full Load Amp (FLA) values for typical 230VAC and 480VAC 3 phase motors.
|Motor horsepower||Full load amps 230VAC||Full load amps 460VAC|
Will 6 gauge wire fit in a 30 amp breaker?
RULES OF THUMB
“Twelve-gauge wire is good for 20 amps, 10-gauge wire is good for 30 amps, 8-gauge is good for 40 amps, and 6-gauge is good for 55 amps,” and “The circuit breaker or fuse is always sized to protect the conductor [wire].”
How many amps does a 10hp single phase motor draw?
Full-Load Current in Amperes Single-Phase Alternating Current Motors
|The voltages listed are rated motor voltages. The listed currents are for system voltage ranges of 110 to 120 and 220 to 240.|