Willl
Elite Member
Why the 'want' for 240V over 120V ?
Wiring saw for 240V
- Thread starter czechsonofagun
- Start date
- Views: 6546
BobRip
Elite Member
The largest motor you can run on a 120 volt 15 amp circuit is about 1.5 horse power if everything were 100% efficient. They are not. Practically you can get about 1.25 hp. To get more you either go to a higher current on higher voltage or a more sophiscated motor (not a lot of gain here). It's cheaper to raise the voltage.
I know you see vacuum cleaners with 5hp running at 120 volt 15 amp circuit. The simple answer is they are lying.
PILOON
Super Star Member
I would not hesitate one bit to go higher HP.
Notice the bore holes in saw blades. All the 8 & 10" blades are the same size and it is only 12" and up that go larger bore (shaft).
The sharpness of your blade will be the biggest factor in contributing strain on the shaft.
Just make shure your bearings are good and don't worry.
BobRip
Elite Member
Sounds good. It is worth the risk anyway. Where is a good place to get a motor.
OP
czechsonofagun
Elite Member
It uses pulleys and three short belts - 8" or so - to transfer the power. I will have to resolve the new pulley too.
But first I think I will rewire the original motor to 240V to see if it makes a difference, the label says it is rated for it.
But first I think I will rewire the original motor to 240V to see if it makes a difference, the label says it is rated for it.
Egon
Epic Contributor
That will probably be quite satisfactory.
MikeD74T
Veteran Member
Willl, Think of voltage as pressure (psi) and amperage or current as flow (i.e. gallons per minute). The higher the voltage (pressure) the more amperage (GPM) will flow thru a given size wire (pipe). Doubling the voltage doubles (or nearly so) the power (ability to do work) in the same sized circuit. Kind of like3 gpm from a pressure washer vs the same 3 gpm from a garden hose.
Notice the wire size of the powerline going down your street as compared to the wire size feeding your house. A small wire (at very high voltage) can power many houses that need bigger wires ( at lower voltage) to carry the small portion of the current needed by your house. MikeD74T
Willl
Elite Member
Mike, thanks for the lesson. :laughing::laughing:
But I didn't mean in general, meant just pertaining to a table saw. :thumbsup:
But I didn't mean in general, meant just pertaining to a table saw. :thumbsup:
BobRip
Elite Member
That will probably be quite satisfactory.
I agree, this is easy to do and worth a try.
AlanB
Elite Member
Czech, your milage may vary, but normally for me, my HD has a much better electrical selection than Lowes, until you get to 220V 20A plugs, of which my HD carries Zero 0 or NONE. However, my Lowes carries a couple of versions.
They look like the 110 but the blade spacing is different enough to require the correct plug and socket.
They are about $5 each at my Lowes.
They look like the 110 but the blade spacing is different enough to require the correct plug and socket.
They are about $5 each at my Lowes.
