Standard Electric Motor Sizes Hp

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Standard electric motor sizes hp. Standard horsepower ratings for electrical motors 1 to 4000 hp are indicated below. A motor sized for peak load alone may burn out rapidly in intermittent duty. Our motors are completely customizable due to our in house design engineering and manufacturing capabilities allowing us to not only meet but exceed your specific application requirements. For a 1 horsepower hp motor the load should typically be in the range 1 2 to 1 hp with maximum efficiency at 3 4 hp.

However choosing the next larger size motor say 10 instead of 7 5 hp brings greater capacity for coping with. Copper conductor 75 c rating. 803 324 3259 standard nema frames vs. Electric motors generators and drives the following are dimensional size charts for standard electric motor nema standard frames and configuration.

Note that most electric motors are designed to run at 50 to 100 of rated load and that maximum efficiency usually is near 75 of rated load. Motors of higher speed usually take a lower current than that shown in the table. Horsepower 900 rpm 1200 rpm 1800 rpm 3600 rpm hp t frames 1964 present u frame 1952 present original nema t frames 1964 present u frame 1952 present original nema t frames. All wiring should be performed by a licensed electrician or electrical contractor and must meet all applicable codes for the area where installed.

Frame size 2 pole 4 pole 6 pole 100 5200 3600 2400 112 5200 3600 2400. Teco westinghouse motor company teco electric europe ltd middle east atlas diba engineering trade co. Standard motor catalogue aesv2e aesu2e series. 1 1 5 2 3 5 7 5 10 15 20 25 30 40 50 60 75 100 125 150 200 250 300 350 400 450 500 600 700 800 900 1000 1250 1500 1750 2000 2250 2500 3000 3500 4000 nominal voltage of not more than 600 v ac and nominal frequency 50 or 60 hz.

Motor hp voltage typical motor f l a. 3 phase induction motors of 1000v or lower. Available in open drip proof weather protected type i and ii totally enclosed fan cooled and totally enclosed air to air cooled enclosures toshiba s medium voltage motor offerings range from 100 to 50 000 hp and 2300 to 13 800 v.