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Inverter size

Discussion in 'Questions From New Drivers' started by Drpparker95, Oct 1, 2017.

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  1. Oct 1, 2017 #1
    Drpparker95

    Drpparker95 Road Train Member

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    Hello guys i am lost. Most of the companies im looking at have at least a 1250 watt inverter. Is that enough for a small refrigerator like walmart sells
     
    Drpparker95, Oct 1, 2017
    Drpparker95, Oct 1, 2017
    #1
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  3. Oct 1, 2017 #2
    mitrucker

    mitrucker Road Train Member

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    My suggestion would be to research power usage of the fridge. Keep in mind that it will use at least twice as much power to start up the compressor.
     
    mitrucker, Oct 1, 2017
    mitrucker, Oct 1, 2017
    #2
  4. Oct 1, 2017 #3
    Drpparker95

    Drpparker95 Road Train Member

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    Most of them seem to require about 100 watts give or take according to the package. So a 1000 to 1200 watt should be fine for just a refrigerator and cooking appliances
     
    Drpparker95, Oct 1, 2017
    Drpparker95, Oct 1, 2017
    #3
  5. Oct 1, 2017 #4
    road_runner

    road_runner Road Train Member

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    inverter_consumption640.jpg
     
    road_runner, Oct 1, 2017
    road_runner, Oct 1, 2017
    #4
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  7. Oct 1, 2017 #5
    Drpparker95

    Drpparker95 Road Train Member

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    So really anything less than 1250 to 1500 is pushing it. I also have the option of a company in Jackson that has just apus but nothing else. I just cant see staying out on the road without any cooking and food appliances.
     
    Drpparker95, Oct 1, 2017
    Drpparker95, Oct 1, 2017
    #5
  8. Oct 1, 2017 #6
    Scooter Jones

    Scooter Jones Road Train Member

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    Minimum 2,000 watt. I have a 2,500 on my personal truck.
     
    Scooter Jones, Oct 1, 2017
    Scooter Jones, Oct 1, 2017
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  9. Oct 1, 2017 #7
    Drpparker95

    Drpparker95 Road Train Member

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    Most company trucks come with a 1500
     
    Drpparker95, Oct 1, 2017
    Drpparker95, Oct 1, 2017
    #7
  10. Oct 1, 2017 #8
    BoostedTeg

    BoostedTeg Road Train Member

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    What brand of inverter are you running? I need to install one in my truck many choices out there.
     
    BoostedTeg, Oct 1, 2017
    BoostedTeg, Oct 1, 2017
    #8
  11. Oct 1, 2017 #9
    Scooter Jones

    Scooter Jones Road Train Member

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    TUNDRA.
     
    Scooter Jones, Oct 1, 2017
    Scooter Jones, Oct 1, 2017
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  12. Oct 1, 2017 #10
    Gabru

    Gabru Light Load Member

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    @Drpparker95
    Minimum inverter size for a fridge and a microwave should be 2000 watts, in my opinion. Most inverters run at about 90% efficiency. That makes a 2000 watts inverter performing at 1800 watts without an issue. Microwave takes about 1000 watts and fridge about 600-700 watts, collectively drawing about 1700 watts.
    Also, make sure you buy a Pure Sine Wave Inverter NOT the Modified Sine Wave as the latter may damage your appliances. Choosing the right wire size is important as well since most inverters by default come with crappy wiring. For a 2000 watt inverter, I would use 1/0 AWG or 2/0 AWG (preferably) with a 250 amp fuse. Hope that helps.
     
    Last edited: Oct 1, 2017
    Gabru, Oct 1, 2017
    Gabru, Oct 1, 2017
    #10
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