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220 and 110

220 and 110

220 and 110

(OP)
I currently have a machine that runs on 110 VAC. The problem is that it is going to pull too many Amps, so I am thinking of running it on 220 VAC. All of the conponents can run on 220 VAC with the exception of the Stepper moter drivers. I would like to know if there is any way to run 110 VAC out of the 220 that I will be bringing into the box?  I realize that one of the legs of the 220 is 110 but I don't know where to get the ground and neutral at that point.
Thank you for any help you can offer.

RE: 220 and 110

If you run 220 to the box, you should be bringing in 4 wires:  2 hot, 1 neutral, and 1 ground... voltage from hot to hot will be 220, voltage from either hot to neutral should be 110, and the ground is for the equipment ground... I don't know how your machine is currently wired up, but you'll need to take in consideration for landing (terminating) the wires, the wire sizes required, making any provisions for motor protection, and also any safety switches are wired appropriately, etc.. make sure you don't create a safety problem for yourself...

RE: 220 and 110

(OP)
Ok, I understand that. Now, if I run the 110 off one of the legs of the 220 do I need to balance the amount of current I am taking from each leg?
Should I be taking the same amount from each hot leg or can I just take it from the one?

RE: 220 and 110

Joe,
   How many amps @110vac do you need to supply to the motors. Also, how many amps does the whole machine require when using only 110 VAC.

RE: 220 and 110

Joe,

You need to be careful and identify all the components inside your machine, then evaluate each one for its 110 vs 220 operation.  For example if you have a “universal” power supply rated 85-250vac, then it’s ok, but if you have a resistive load (heater?), or a motor, you will not benefit from reduced current or power (unless of course each of those components can be 110/220 switched.

Would be helpful if you clarify your load types.

jim s.

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