Rewiring 1 3/4 HP Table Saw for 220V

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Forum topic by cag0331 posted 11-21-2016 03:02 PM 1127 views 0 times favorited 5 replies Add to Favorites Watch
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13 posts in 694 days

11-21-2016 03:02 PM

Topic tags/keywords: table saw 220v wiring electrical awg wire gauge

Hello everyone. I have a 1 3/4 HP Laguna Fusion Table Saw that is currently wired for 110V. I just had a 220V circuit added to my shop and want to rewire the saw to use that circuit as I have had some issues with tripping breakers (previously all the receptacles in my shop were on the same circuit). When I contacted Laguna to ask what I would need to do this, they sent me a new switch and motor reset button. My question, though, is whether the wire that came on the new switch is substantial enough. It has SJT 14/3 running from the switch to the motor and from the switch to the plug. Is this acceptable?

I’m considering replacing the wire to the plug with something longer and was thinking I might need to move a gauge or 2 up. Any thoughts?


5 replies so far

View eflanders's profile


310 posts in 1964 days

#1 posted 11-21-2016 03:40 PM

The wiring inside the switch is 14 ga.? If so, yes it is fine. If the wire from the switch to the motor and from the motor to the plug that too is fine. But you will want at least 12 ga. wire going to the saw from the circuit. Wire gauge is based a lot on length of run.

View cag0331's profile


13 posts in 694 days

#2 posted 11-21-2016 03:48 PM

The motor connects to the switch, which then connects to a plug which would be plugged into the circuit. All the wiring to and from the switch came as 14 gauge. Maybe just replace the wire from the switch to the circuit with 12 ga. especially if I’m making a longer run?

View firefighterontheside's profile


18833 posts in 1971 days

#3 posted 11-21-2016 03:54 PM

The longer run only applies to the distance from the breaker to the receptacle. That wire needs to be 12. For the other short distances, the 14 is fine. Remember that you only have half the amps per leg now as opposed to 120. You can feed the 14 with 12, but not the other way around.

-- Bill M. "People change, walnut doesn't" by Gene.

View verdesardog's profile


168 posts in 2725 days

#4 posted 11-21-2016 05:27 PM

#14 wire is rated for 15 amps…..Full load amps for 220v 1 1/2 hp motor is about 10.

The manufacturer wouldn’t have sold anything less than what is required and probably not anything more than what is required.

-- .. heyoka ..

View REO's profile


929 posts in 2188 days

#5 posted 11-21-2016 11:48 PM

For the appliance cord 14 gage is good for 18 amps and 12 gage is good for 25 amps for up to 50 feet

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