208 vs 240
- Thread starter laketime
- Start date
- Status
- Location
- Massachusetts
Maybe yes, maybe no.
I have installed restaurant equipment specifically tagged not to connect to 240.
The elements will run much hotter and that could be an issue. Even if not a safety issue it could effect performance.
- Location
- New Jersey
- Occupation
- Journeyman Electrician
Could you? Yes. Should you? No, for the reason that Bob mentioned.
renosteinke
Senior Member
- Location
- NE Arkansas
What does the nameplate say, exactly?
NEMA standards generally specift a 10% tolerance, based upon the nameplate rating. That's why there are so many different ratings found on nameplates.
If the nameplate says '208,' then that appliance can be used with any voltage between 188v and 228v, actual measured voltage.
Another approach is to look the implications of Ohm's law. With resistance, voltage variations have an effect that is "squared." That is, doubling the voltage results in four times the heat being produced. That toaster will put out a hell of a lot more heat at 240 than it will at 208. Sounds like a recipe for burnt toast ...
NEMA standards generally specift a 10% tolerance, based upon the nameplate rating. That's why there are so many different ratings found on nameplates.
If the nameplate says '208,' then that appliance can be used with any voltage between 188v and 228v, actual measured voltage.
Another approach is to look the implications of Ohm's law. With resistance, voltage variations have an effect that is "squared." That is, doubling the voltage results in four times the heat being produced. That toaster will put out a hell of a lot more heat at 240 than it will at 208. Sounds like a recipe for burnt toast ...
- Location
- Massachusetts
Yes, but that source will have to be a 208 volt source.
jmellc
Senior Member
- Location
- Durham, NC
- Occupation
- Facility Maintenance Tech. Licensed Electrician
Is it a location where you can put a buck/boost transformer nearby? I remember using some fairly small tx units on some machines needing full 240 instead of 208. These tx had numerous voltages they could handle.
- Location
- Massachusetts
I agree, it would take just a single, very small bucking transformer. Fairly inexpensive.
stevenje
Senior Member
- Location
- Yachats Oregon
Why not go to a restaurant equipment supply company who deals in used equipment and swap out the toaster for one with the right voltage. There is a ton of used restaurant equipment available out there.
- Location
- New Jersey
- Occupation
- Journeyman Electrician
r
IMO they need to use 208 volts, a transformer or a new toaster. As an installer it's beyond my scope as to what they plug in. I would tell them first however. :happyyes:
IMO they need to use 208 volts, a transformer or a new toaster. As an installer it's beyond my scope as to what they plug in. I would tell them first however. :happyyes:
Good answer but....would you hardwire it/something like it?
- Location
- New Jersey
- Occupation
- Journeyman Electrician
I would not hardwire equipment on a 240 volt system with a 208 volt nameplate. Except in my own garage. :lol:
- Status