Square D 220v to 110v change over

[DavidR8]

I have a Square D magnetic switch on my Unisaw.
I need to switch everything to 110v until I get my 220v service finished.
I’m not quite sure how to change the switch wiring to 110v.
Hoping someone can interpret what I’m looking at.

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[Dozerhand]

You need to find out if you have a dual voltage motor. I have an older unisaw and it will only run on 220.

 

[GrayFlattop]

This. And if the motor is dual voltage capable, you will need to reconfigure the coil wiring - per the schematic. Also, you will need to swap out the heaters - based on the FLA @ the lower voltage. And you may need larger wires since the amperage will double.

 

[The Cobbler]

if it's a 3 hp unisaw I don't think they are dual voltage motors. if they are, the amp draw will be high on 120v. can you run a temp 240 cable to power it up?

 

[DavidR8]

You need to find out if you have a dual voltage motor. I have an older unisaw and it will only run on 220.

It’s a dual voltage motor and I’ve rewired it for 110v.


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[DavidR8]

if it's a 3 hp unisaw I don't think they are dual voltage motors. if they are, the amp draw will be high on 120v. can you run a temp 240 cable to power it up?

I think that’s what I will am going to do.
Thanks all.


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