The standard generic motor charts show a 5 HP 230 volt single phase motor draws 28 amps (fairly close to your 30 amp calculation)
HOWEVER when I was a design engineer I never exceeded 80% of the wire ampacity for full load conditions and 80% of 30 amp rated No 10 Gauge wire is only 24 amps THEREFORE Id specify 8 gauge wire at a minimum.
ALSO HOWEVER even if it may be some overkill, to lessen voltage drop over 70 feet of wire Id bump it up yet one more size and recommend 6 gauge.
Since 80% of 30 amps is 24 and the motor will draw at least 28 amps and due to the voltage drop at 70 feet, I just couldnt in good faith recommend only 10 gauge wire.
But hey its his money and hes free to do as he pleases and Im rusty as an old nail as far as the NEC is concerned so if he wants yo use 10 thats his business but I have to stick with remommending at least 8 better yet 6 gauge
We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]
Today's Featured Article - Tractor Profile: Farmall M - by Staff. H so that mountable implements were interchaneable. The Farmall M was most popular with large-acreage row-crop farmers. It was powered by either a high-compression gas engine or a distillate version with lower compression. Options included the Lift-All hydraulic system, a belt pulley, PTO, rubber tires, starter, lights and a swinging drawbar. It could be ordered in the high-crop, wide-front or tricycle configurations. The high-crop version was called a Model MV.
... [Read Article]
Latest Ad:
1964 I-H 140 tractor with cultivators and sidedresser. Starts and runs good. Asking 2650. CALL RON AT 502-319-1952
[More Ads]
All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy
TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.
