Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - Cut-off saw
Thread: Cut-off saw
View Single Post
  #34 (permalink)  
Old 12-14-2009, 08:16 PM
302 Z28's Avatar
302 Z28 302 Z28 is offline
 
Last photo:
Join Date: May 2003
Location: North Texas
Posts: 10,839
Wiki Edits: 0

Thanks: 1
Thanked 86 Times in 73 Posts
Dan that "peak" hp figure will not trip a 20 amp breaker because the breaker is setup to handle sharp quick loads. It may very well draw over 20 amps very briefly, but if it continues past a few milliseconds the breaker will take it out. In industry in large motors we use what is called a slow blow fuse that rides through the inrush current a motor draws when starting.

FWIW, that "peak" HP figure is absolutely meaningless when trying to figure out a motors capacity.

Vince
Reply With Quote