Rewiring tablesaw

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Forum topic by Doug321 posted 03-14-2014 11:47 PM 1533 views 0 times favorited 10 replies Add to Favorites Watch
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5 posts in 1712 days

03-14-2014 11:47 PM


This is my first post so I apologize in advance if this question has been asked or answered before.
My wife just purchased a Craftsman 21833 tablesaw for me. I would like to rewire it for 220 as I am already using the majority of the 110 available. While doing a quick search I found on 3 different woodworking sites individuals stating that they swapped out just their 110v plugs for 220v and that’s it. These we’re all the comparable Ridgid saw not the 21833. Not sure if that makes a difference. At any rate is that safe/appropriate. I was under the impression a new power cord and plug would be needed.

Thanks for any input.

10 replies so far

View MrUnix's profile


7009 posts in 2376 days

#1 posted 03-14-2014 11:57 PM

No.. while you DO need to swap out the plug, you ALSO need to rewire the motor. Check page 13-14 of the owners manual and double check with the wiring diagram in the motors junction box that it is correct. If they differ, then follow the diagram in the motor.

Rewiring the motor is trivial.. just swapping a couple of wires and/or jumpers.

Manual can be fouind here:


-- Brad in FL - In Dog I trust... everything else is questionable

View Grandpa's profile


3261 posts in 2853 days

#2 posted 03-15-2014 02:56 AM

What Unix said

View Doug321's profile


5 posts in 1712 days

#3 posted 03-15-2014 11:51 AM

Thank you both.

View Doug321's profile


5 posts in 1712 days

#4 posted 03-15-2014 09:07 PM

Have it rewired, but, now realize I need a much longer cord. Can I just switch out the length from the plug to the paddle on/off switch with 12awg and from the paddle switch to motor keep the existing 14awg wire safely?

View HerbC's profile


1790 posts in 3037 days

#5 posted 03-15-2014 09:13 PM

Basic answer is yes…

When you rewired the saw for 220v you cut the current (amperage) needed to run the saw by 50% (but the overall power requirement remains the same because of the voltage increase) and one of the results is that a smaller size (gauge) of wire is required to safely handle the current. The only other concern with the wire is to ensure it is rated for 220V which is a factor of the insulation used.

Be Careful!



-- Herb, Florida - Here's why I close most messages with "Be Careful!"

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Monte Pittman

29975 posts in 2516 days

#6 posted 03-15-2014 09:25 PM

You have to rewire the motor or you’ll burn it up. Somewhere on the machine it should give you directions to go by.

-- Nature created it, I just assemble it.

View keninblaine's profile


130 posts in 1779 days

#7 posted 03-15-2014 09:43 PM

I’m always a little nervous about people who may not realize what the difference is between 110v and 220v wiring. Doug may not be one of those people, but just in case: in a 110v wiring, the 3 wires in an existing cord or cable typically consists of a black one for 110v “hot” wire, white one for neutral (ground), and a bare one or green one for another safety ground. When wiring for 220v, the black wire is still +110v “hot”, but the white one is also “hot” with -110v, so that the voltage between those 2 wires is 220v. The green or bare wire is still the ground. Always ensure that the proper 220v plugs and sockets are used on outlets, extension cords, etc. so that nobody mistakes it for a normal 110v circuit.

-- Ken, Blaine Washington

View Doug321's profile


5 posts in 1712 days

#8 posted 03-16-2014 12:13 AM

Thanks for the responses.

Already rewired the motor previously, I just needed a much longer power cord to reach the outlet.

It works great!

View runswithscissors's profile


2874 posts in 2203 days

#9 posted 03-16-2014 07:23 AM

I usually “paint” the ends of the white wire either black or red, just so somebody won’t think it’s a 110 setup. A felt marker works well for this. Red really is best, because then you won’t mistake one wire for the other, in case that might matter somehow.

-- I admit to being an adrenaline junky; fortunately, I'm very easily frightened

View thedude50's profile


3603 posts in 2655 days

#10 posted 03-16-2014 08:15 AM

The plugs are different a 110 wont fit in a 220 socket the prongs are horizontal in a 220 outlet and plug

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