[Shop-talk] 220V extension cord with breaker

David C. cavanadd at frontier.com
Thu Mar 31 19:08:57 MST 2011


Well, not on purpose....

About 15 years ago I was cutting something fairly large with my 
relatively new Grizzly horizontal/vertical bandsaw (with a Chinese motor 
with no thermal overload, not to put too fine a point on things....) 
This is the kind of saw that Horrible Freight and everyone else in the 
world sells now, and most of us have one in the shop.  Anyway, it's 
supposed to trip the manual on/off toggle switch when the cut completes 
and the blade housing drops down and switches it off.  But this time it 
didn't.  I set it up to cut, walked away from it and apparently forgot 
about it, because when I came back out to the shop the next morning the 
garage and shop were filled with the most horrible burned motor stink 
you can imagine.  The saw kept running until it overheated, buned out 
the windings and apparently went to ground because the breaker was 
tripped.  So much for "continuous duty" I suppose.   I subsequently 
replaced the motor with an ODP from Horrible Freight (for about $25 
bucks) and it's been working fine since.

Jeff Scarbrough wrote:
> It's not likely that you will let your band saw run unattended, anyway.


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