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Hardwiring a 200w power inverter to aux battery

Discussion in 'Technical Chat' started by Rat_Bastard, Sep 24, 2022.

  1. Sep 24, 2022 at 10:56 AM
    #1
    Rat_Bastard

    #1
    Rat_Bastard [OP] Well-Known Member

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    I want to hardwire a 200 watt power inverter (usb outlets) to a bluesea fuse block that is powered by my auxiliary battery. The inverter is not supposed to exceed 180 watts. Is there anything else that needs to be considered to avoid a catastrophic event? What size fuse should be used in the fuse block?
     
    Rat_Bastard, Sep 24, 2022
    #1
  2. Sep 24, 2022 at 11:00 AM
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    6 gearT444E

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    6 gearT444E Certified Electron Pusher

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    If it were me, I'd put a 20 amp fuse in there, sized based on 10% over max rating. Depending on the length of wire run to the inverter, 12 AWG being the minimum.
     
    6 gearT444E, Sep 24, 2022
    #2
  3. Sep 24, 2022 at 11:08 AM
    #3
    Rat_Bastard

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    Rat_Bastard [OP] Well-Known Member

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    Perfect. I'm using 12awg. And will use that 20 amp fuse. Thanks
     
    Rat_Bastard, Sep 24, 2022
    #3
  4. Sep 24, 2022 at 1:33 PM
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    Silverlogic

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    Silverlogic Well-Known Member

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    Why are you using an inverter for USB outlets?
     
    Silverlogic, Sep 24, 2022
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    Mark77 likes this.
  5. Sep 25, 2022 at 5:33 PM
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    Rat_Bastard

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    Rat_Bastard [OP] Well-Known Member

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    Rat_Bastard, Sep 25, 2022
    #5

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