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Home » Spaces » Back-UPS & Surge Protectors » discussion » General » Voltage Regulation - Line-R 1200VA (LE1200I) vs. APC BACK-UPS 700VA (BX700U-GR)

Voltage Regulation - Line-R 1200VA (LE1200I) vs. APC BACK-UPS 700VA (BX700U-GR)

Discussion in Back-UPS & Surge Protectors started by Mihai , 9 days ago
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  • mihai
    Novice Novice
    Mihai 9 days ago


    Can someone please help me compare the AVR in the following two products? Here's what I have found in the online documentation:

    • Line-R 1200VA (LE1200I)
      • Output Regulation: ±10%
      • Response Time: < 2 AC Cycles
    • APC BACK-UPS 700VA (BX700U-GR)
      • '“Double Boost and Single Trim” AVR instantly corrects voltage fluctuations without using the battery, allowing you to work indefinitely through sustained voltage increases and decreases.'

    It probably comes down to what "Double Boost and Single Trim" actually entails.

    Thanks in advance,


  • mihai
    Novice Novice
    Mihai 6 days ago (in response to Mihai)

    So no one knows what “Double Boost and Single Trim” means exactly?


    • User jordan wrote here: "Generally AVR has a +/- 12% range in the Smart UPS, unless your unit features double boost."
    • User  Angela wrote here: "i cant find any white papers or anything but essentually, the UPS boosts or trims the voltage accordingly for undervoltages or overvoltages by percentage. i believe the percentage is 12% and some have a double boost of 24%. it takes this percentage from the input voltage."
      • She also references this KB link, but the page is no longer available.

    If this truly means +24%/-12%, then the AVR in the BX700U-GR should be better than the one in LE1200I, at least in this regard (e.g. not considering the VA).

  • SecretSquirrel
    Secret Squirrel
    =S= Representative
    Secret Squirrel 5 days ago (in response to Mihai)

    Hi Mihai,

    The percentage of boost or trim is really dependant upon the unit and how it was designed. Between 10-12% is a good estimate, however it may range for different functions. i.e 8% Trim, 10% Boost, 8% Double Boost. In this case I believe the actual percentages of each function are not as important as the voltage range of operation.  The BX700U-GR has a much wider range of operation (140vac - 300Vac) vs the LE1200I which is (160vac - 290vac). When the utility power increases above or decreases below these specified ranges, the devices will take appropriate action. The BX700U-GR will switch to it's inverter and provide you adequate power to allow you time to turn off your attached devices properly. The LE1200I on the other hand, will essentially turn off power to your equipment without warning, as there is no internal battery.

    Deciding which is best for you is truly dependant upon what your needs and the needs of your attached equipment are.

    Secret Squirrel

  • mihai
    Novice Novice
    Mihai 5 days ago (in response to Secret Squirrel)

    Thanks  Secret Squirrel .

    What I'm looking for is the best AVR *range* I can get, w/out caring too much for a battery inverter since I'm using a laptop with enough life left in its internal battery.

    The Schuko are a must for me, so I'd have to use an adapter if going for the LE1200I (too bad the LE1200-RS is not available in my area), while BX700U-GR has these sockets already and feels like a better option.

  • voidstar
    Expert Expert
    voidstar 5 days ago (in response to Mihai)

    How much input voltage range do you need in your area? I'm curious because in my part of the world the voltage is stable until a power outage.

    One other consideration: the lead acid batteries in a UPS last 3-5 years before requiring replacement, and the UPS will beep to let you know. I don't see mention of replaceable batteries on the BX700U-GR product page. The Line-R doesn't require battery maintenance.

  • mihai
    Novice Novice
    Mihai 4 days ago (in response to voidstar)

    voidstar , it's actually very stable in the majority of the locations, but the truth is I haven't made a note of how far it temporarily goes away from the norm in the problematic ones. I think the actual problem comes from the lack of proper isolation between consumers in some small areas. Again, this is the exception, not the rule.

    This is probably the perfect use case for the need to have an AVR in place, as opposed to frequently switching to battery. That's basically the main reason I'm looking for the best AVR in the price range, since that's the "feature" I'll be using the most.

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