Yesterday's Tractor Co. Low Prices, Parts Ship Fast!
Click Here or call 800-853-2651 
   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver
 
Marketplace
Classified Ads
Photo Ads

Community
Discussion Forums
Project Journals
Tractor Town
Your Stories
Show & Pull Guide
Events Calendar
Hauling Schedule

Galleries
Tractor Photos
Implement Photos
Vintage Photos
Help Identify
Parts & Pieces
Stuck & Troubled
Vintage Ads
Community Album
Photo Ad Archives

Research & Info
Articles
Tractor Registry
Tip of the Day
Safety Cartoons
Tractor Values
Serial Numbers
Tune-Up Guide
Paint Codes
List Prices
Production Nbrs
Tune-Up Specs
Torque Values
3-Point Specs
Glossary

Miscellaneous
Tractor Games
Just For Kids
Virtual Show
Museum Guide
Memorial Page
Feedback Form

Yesterday's Tractors Facebook Page

Related Sites
Tractor Shed
TractorLinks.com
Ford 8N/9N Club
Today's Tractors
Garden Tractors
Classic Trucks
Kountry Life
Enter your email address to receive our newsletter!

subscribe
unsubscribe
  
Tool Talk Discussion Forum

Re: 220v Circuit breaker question.

[Show Entire Topic]  

Welcome Guest, Log in or Register
Author  [Modern View]
John T

07-18-2013 09:18:19
216.249.76.176



Report to Moderator

Okay heres the real deal:

1) If your planer is a 240 volt (which I assume, correct me if its not) and it calls for a 30 amp circuit,,,,,,,(if the "continuous" load is no greater then 24 amps, a 30 amp branch circuit with 30 amp rated wire protected by a 30 amp overload protection device will indeed suffice, subject to code exceptions where a bigger breaker is permitted to allow a motor to start if all other requirements are met)

Then that 240 volt 30 amp branch circuit requires a 240 volt 30 AMP TWO POLE CIRCUIT BREAKER which serves as the branch circuits overload protection device........

NOTTTTTTTTTTT a 15 Amp

NOTTTTTTTTTT one Single Pole Circuit Breaker (those are for 120 volt branch circuits)

The reason you need a TWO POLE BREAKER is because they connect a pole to each of the two different Hot UnGrounDED voltage phase legs in the panelboard, and its 240 volts L1 to L2 in the Panel NOT 120 volts which is present between either leg L1 or L2 and Neutral (A GrounDED Conductor).

YES BILLY BOBS (dont want you to have a calf now lol) if you have two single pole breakers side by side with their handles tied together, that would supply 240 volts line to line. My preference is a single one piece two pole breaker but yall do as you please.

The current in a 240 volt single phase load IS NOT ADDITIVE, its the same amount of current in both legs. If the load were 20 amps and you used an ammeter on both legs L1 and L2, BOTH will read 20 amps, NOT 10 on one and 10 on the other.

Id expect the straight 240 volt branch circuit (assumes no 120 volt loads) to have three wires, two Hot UnGrounDED Phase Conductors L1 & L2, plus a third Safety Equipment GroundING Conductor (often bare or Green) that bonds to a saws outer metal case frame for safety.

AS ALWAYS if in doubt consult a local trained competent profesional electrician or engineer and dont hang your hat or risk your life on untrained Billy Bob and Bubba opinions....

Nuff said, any questions???

John T

[Log in to Reply]   [No Email]
[Show Entire Topic]     [Options]  [Printer Friendly]  [Posting Help]  [Return to Forum]   [Log in to Reply]

Hop to:

TRACTOR   PARTS TRACTOR   MANUALS
Same-Day Shipping! Most of our stocked parts ship the same day you order (M-F).  Expedited shipping available, just call!  Most prices for parts and manuals are below our competitors.  Compare our super low shipping rates!  We have the parts you need to repair your tractor.  We are a Company you can trust and have generous return policies!   Shop Online Today or call our friendly sales staff toll free (800) 853-2651. [ More Info ]

Home  |  Forums


Copyright © 1997-2014 Yesterday's Tractor Co.

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.

Yesterday's Tractors - Antique Tractor Headquarters