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Thread: Bought Sunbeam EMO450/can it be used in US?

  1. #1
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    Bought Sunbeam EMO450/can it be used in US?

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    Hi, I am new to this forum. One reason is I live in the USA. I won an auction on ebay for a brand new Sunbeam EMO450 conical burr grinder. The guy was listing in the US section of ebay. I was not thinking but also did not even think I would win with a low bid of $56 US. I did win the bid and now I just need to pay the guy and get it sent on its way.
    My dilema or problem is that the grinder is made for Australian AC power. You have 230-240v/50hz. Here in the US, our small appliances are usually made for 115v/60hz. I know I can get a voltage converter, that is not a problem. The problem is the hz/frequency. Not knowing what kind of motor is in this grinder, I dont know if the 60hz US will destroy the grinder.
    My question is:
    Is it an induction motor of a universal brush motor with reduction gears. If it is a brush motor the frequency difference will be no big deal. An induction motor will run at about 6/5 speed, or is it a capacitor run induction motor, which means a little more tricky to adapt.
    Has anyone heard of other ways to make it work or would I do better to sell this grinder on here because I could damage the grinder?


  2. #2
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    Re: Bought Sunbeam EMO450/can it be used in US?

    mtndude08

    mmmmmmmmmmmmmmmm....tricky!

    Determining what kind of motor, would only be possible via Sunbeam or if an Elec/Mech knowledgeble CSer who is also a Sunbeam owner was prepared to pull apart his grinder and reply.
    Alas, I no longer have mine.

    Ive attached a link for the online sunbeam service centre [hope this is OK with the mods] but I have no idea how supportive or helpful theyll be since your enquiry may fall outside of ther scope/knowledge.

    In any case, the cost of a 300watt-ish rated 240/110VAC converter may still be a prohibitive factor. [Grinder is rated @ 150watts]

    As a suggestion, Advertise it, in our equipment for sale section and price it for a VERY quick sale. That way you may be able to instruct the ebay vendor to post it direct to the snobber.

    As a $$$ guide EM0450s can be bought new for around/under $150Aust and a 5 day old EM0480 just sold on CS for $100Aust.

    http://www.sunbeam.com.au/service/index.cfm?home_id=2


    Good luck

  3. #3
    Senior Member fatboy_1999's Avatar
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    Re: Bought Sunbeam EMO450/can it be used in US?

    The rules of the For Sale section might preclude a quick sale.
    [snip]
    * Must have been a member for more than 2 weeks.
    * Must have posted 5 messages to the forums.
    [/snip]
    Full conditions here
    http://coffeesnobs.com.au/YaBB.pl?num=1115338528

    Perhaps Javaphile will have a suggestion when he comes online.
    I seem to recall him once saying that many US houses do have a 240v connection as well. Or did I dream that?

  4. #4
    A_M
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    Re: Bought Sunbeam EMO450/can it be used in US?

    Quote Originally Posted by mtndude08 link=1202227718/0#0 date=1202227717
    My dilema or problem is that the grinder is made for Australian AC power. You have 230-240v/50hz. Here in the US, our small appliances are usually made for 115v/60hz. I know I can get a voltage converter, that is not a problem. The problem is the hz/frequency. Not knowing what kind of motor is in this grinder, I dont know if the 60hz US will destroy the grinder.
    My question is:
    Is it an induction motor of a universal brush motor with reduction gears. If it is a brush motor the frequency difference will be no big deal. An induction motor will run at about 6/5 speed, or is it a capacitor run induction motor, which means a little more tricky to adapt.
    Has anyone heard of other ways to make it work or would I do better to sell this grinder on here because I could damage the grinder?
    1: Relist / sell on e-bay and advise the org seller of your mistake, and that on the sail and payment, you want the org seller to post to the new buyer.

    2: See if the seller is happy to relist and sell, and if he is not out of pocket / refund you the $$

    3. Voltage Converter is next option... 50 Vs 60 is a minor issue, but could have slight impact on the life of the unit. However it is not running 24/7 but for short bursts only.

    4: From recall (My memory is not that good, and nor was I inspecting the motor electrics at teh time) it is an induction type. " The Burr system is driven by a powerful Universal motor and planetary gearbox" as from http://www.designawards.com.au/application_detail.jsp?status=4&applicationID=663

    Best of luck... I guess as they say let the buyer beware and read the fine print.

  5. #5
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    Re: Bought Sunbeam EMO450/can it be used in US?

    I actually was able to cancel the winning bid and I gave the original seller $10US to help pay for the troubles.
    Everything worked out and I bought a Baratza Virtuoso and the customer service was great.
    Yes, must be more careful when buying electronic overseas.
    It was not entirely the sellers fault, he could have mentioned that this is wired for Australian electrical mains but then again, I should have realized that being that these are made only in Australia, they arent meant to work on the North American 110v/60hz mains.

  6. #6
    Super Moderator Javaphile's Avatar
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    Re: Bought Sunbeam EMO450/can it be used in US?

    Quote Originally Posted by fatboy link=1202227718/0#2 date=1202271967
    Perhaps Javaphile will have a suggestion when he comes online.
    I seem to recall him once saying that many US houses do have a 240v connection as well. Or did I dream that?
    You didnt dream it fatboy. 240v is available in pretty much every US house. The incoming power too US houses is 220/240v (Actual readings can vary anywhere from 208v too 240v depending on your location.) but the standard outlets are 110/120v. High draw items such as stoves and dryers are commonly wired for 220/240v. Some homes have 220/240v outlets for air conditioners. If you know what youre doing you can wire in new 220/240v outlets where-ever you want, or alternatively hire a licensed electrician to do it. Needless to say working with your mains is very dangerous and if you dont know what youre doing dont touch it and hire a qualified electrician!!

    While it is (relatively) easy to get 240v to your bench compensating for the different frequency is another matter. The solution I used with my German made Gothot roaster whose motor was made for 50Hz was a microdrive (http://coffeesnobs.com.au/YaBB.pl?num=1121040424/105#105). A bit on the pricey side for a low cost grinder but it will do the job wonderfully and allow you to run a 240v 50Hz device on a 120v 60Hz standard US outlet.


    Java "Still loving his Gothot!" phile

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    Re: Bought Sunbeam EMO450/can it be used in US?

    Quote Originally Posted by Javaphile link=1202227718/0#5 date=1202593064
    While it is (relatively) easy to get 240v to your bench compensating for the different frequency is another matter. The solution I used with my German made Gothot roaster whose motor was made for 50Hz was a microdrive (http://coffeesnobs.com.au/YaBB.pl?num=1121040424/105#105). A bit on the pricey side for a low cost grinder but it will do the job wonderfully and allow you to run a 240v 50Hz device on a 120v 60Hz standard US outlet.
    Re frequency conversion, unless the item has a synchronous motor I dont know if the difference is important when using a 50Hz item on 60Hz. Using something designed for 60Hz on 50Hz can be, IIRC from my electronics training in the Sixties, a problem. That certainly applied to transformers as there often wasnt enough steel in the core for the lower frequency of 50Hz. The result was that the inductance would be lower thus allowing too much current flow.



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    Re: Bought Sunbeam EMO450/can it be used in US?

    All true guys,

    With small motors of the type being discussed though.... Single Phase Induction Motors, there isnt a lot to worry about. If the motor is a Capacitor Start/Run type then you would need to replace these with new items of slightly different capacitance and in most cases this will cover it. Naturally, motors designed to run on 50Hz will run slightly faster with 60Hz supply but this is also not usually a problem. Depending on duty, a resulting reduction in torque may be a problem depending on how close the motor is to specific output requirements and by contrast, the actual output power increases slightly.

    With any large industrial application motor though, all of the above needs to be thoroughly examined in order to re-rate the motor when used in an application where line voltage and frequency is other than what it was originally designed to use. Hope this is of some help.... :)

    Mal.



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