I am having a Canon C6000 digital printing press installed. I only have single phase to my facility. It calls for single phase, 30a, 208v Wye. Is this possible, and what is the difference in wye connection versus delta? Any suggestions? They are telling me to use a nema L1430 configuration for connection, but must be 208v, single phase.

Your NEMA outlet is just an outlet to plug in the press. Maybe the diagram will help explain what a wye connection is.

If the unit is rated only for 208 volts, and you have only single phase, it should be 240 volts. You really should check if it will work properly on the 240 volts.

If you look close at the nameplate, it may say 208~240 volts, or something similar, in which case it will operate fine.

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Originally Posted by InfoJunkie4Life

Your NEMA outlet is just an outlet to plug in the press. Maybe the diagram will help explain what a wye connection is.

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Thanks for the diagram. HOwever, you are showing a WYE connection utilizing 3 phase, correct? The press I have emphatically states 208, single phase. I'm a bit puzzled. Can I accomplish 208 single phase with a 120/240 panel?

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Originally Posted by tkrussell

If the unit is rated only for 208 volts, and you have only single phase, it should be 240 volts. You really should check if it will work properly on the 240 volts.

If you look close at the nameplate, it may say 208~240 volts, or something similar, in which case it will operate fine.

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Thanks for responding. The instructions state emphatically that 208v, single phase only be used for power connection. I'm a bit puzzled at why a major manufacturer would utilize 208v, single phase. Can I accomplish this with a 120/240v rated panel?

That receptacle Leviton 30 Amp 125/250V Single Locking Flush Receptacle - Leviton 27CM-10 - LevitonProducts.com

Has a neutral, ground and two of the phases.

You have to call the mfr to see if it will operate on 240, otherwise you will have to install a transformer to reduce the 240 to 208V.

USUALLY, there are ways to make single phase equipment operate on 240 or 208V. Some motors get upset.

It can be done with a buck boost transformer. Buck Boost Transformers - Power Transformer Co

Basically the transformer would be wired such that 32V is subtracted from each leg yielding 208 V. Note some transformers have dual secondaries.

Two 416-2202-000 transformers from here would work. http://www.powertransformer.us/jeffe...ansformers.htm

As I stated, since the unit is rated only 208 volts, and you have 240 volts, you need to check with the manufacturer to learn if the unit can be supplied with 240 volts.

There are many components internally that may be damaged by the 240 volts.

If you do learn that 240 volts is not acceptable to the 208 volt unit, then you can consider using the buck-boost transformer method to reduce the 240 volts down to 208.

Or get a printing press rated for 240 volts.

Yep, but the buck-boost method will likely be pricey.

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Originally Posted by KeepItSimpleStupid

Yep, but the buck-boost method will likely be pricey.

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Thanks again for the responses. Have been awesome. However, the buck/boost method is not all that expensive quite frankly. If I went the isolated transformer, then the pricing jumpe close to a grand. The initial methodd is around 400 bucks. And, thank goodness, the manufacturer will accept this method. Really do appreciate everyone's responses.

Great!

There is about 7.5x more copper in the isolation method. My calcs are wrong. I assumed one isolation xformer and one buck-boost. There are variations. So call it 3x more copper, so it's a significant savings.