12V converter question

Discussion in 'Wiring' started by eswebster, Oct 11, 2018.

  1. eswebster

    eswebster New Member

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    I have a 2002 Rockwood Freedom 1940 LTD. I am having issues with the power converter not producing the 12VDC. I do not use a battery, and only use my pup when I am hooking to 110v power. I have converted my interior lighting to AC leds, and removed all of the water supply items. So, the only need that I have for 12v power is the heater. Would there be any issue with using a 110vac to 12vdc power supply with appropriate amp rating, instead of replacing the converter? This would clean up the wiring, be much less expensive, and take up less space under the dinette seat.
    Thanks in advance for your advice.]

    Power Supply.JPG
     
  2. tombiasi

    tombiasi Well-Known Member

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    As long as you only need to supply DC and not charge a battery.
     
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  3. Matt Benoit

    Matt Benoit Active Member

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    As long as the supplied power meets the needs of the heater it would be fine. I have a similar situation with my pup. The only 12v electronics I have are the lights. I use a small ac to dc converter. (similar to the one pictured below) it plugs into the outlet underneath the dinet and feeds the wiring for the lights. I believe mine maxes out at 4A wich is plenty for a couple of led light bulbs.

    Screenshot_2018-10-11-11-36-40.png
     
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  4. roybraddy

    roybraddy Well-Known Member

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    My trailer is a 12-foot Box model and has Electric Brakes installed. This requires me to have 12VDC Battery to operate my trailer brakes in the event the trailer becomes disconnected from my truck when being pulled down public roads.

    In this state it is a DOT Requirement to have a battery to immediately stop the run-away trailer if this happens...

    Here in Virginia if we have electric brakes then we also must have a battery setup for the above reasons before they will issue the annual inspection sticker.

    Since all of our camping with this OFF-ROAD trailer is back off trail somewhere so having a battery setup is a definite must have for us haha... My batteries run across the trailer tongue like shown here...
    [​IMG]
    Roy's image

    We hear alot on here of RV Folks not having a battery for one reason or another... We also hear alot of folks on here that does not have the annual inspections. I guess I am somewhat all alone on this subject haha...

    Roy Ken
    [​IMG]
     
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  5. Matt Benoit

    Matt Benoit Active Member

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    No inspections here in Michigan
    Also don't have brakes
    My pup didn't even come with a battery hookup.
     
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  6. eswebster

    eswebster New Member

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    I switched my interior ceiling lights to led ones that work with a remote. I put in 2 lights and the remote has a button for each. I got tired of trying to find the rocker switches on the old lights in the dark. Plus, they didn't put out much light. Since they are such low amperage, I swapped the existing wires from the 12v side of the converter to the 110v side.
     
  7. eswebster

    eswebster New Member

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    Thanks for all the input. I felt like it would be fine. I just didn't want to miss anything!
     
  8. eswebster

    eswebster New Member

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    It's the same here in Indiana.
     
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  9. SteveP

    SteveP Well-Known Member

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    If I'm reading this correctly you connected 16 gauge primary wire to a 110 volt 15 amp breaker. It's your pup but I wouldn't recommend that.
     
  10. Matt Benoit

    Matt Benoit Active Member

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    That's how I read it too. The primary wire can safely handle the AC power (although not rated for it), it's the breaker that's the real problem... If there's a short the wire will melt long before that 15A breaker trips.

    Smallest standard breaker is probably a 10A. You could easily swap it out, but then you also greatly reduce the capacity of circuit. If the circuit also has outlets, those would be limited to 10a also. Some electronics (microwave, mini fridge, toaster, coffee pot, or space heater) would trip a 10A breaker.
     
    Last edited: Oct 11, 2018
  11. joet

    joet Well-Known Member

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    If you ever have a short....I hope you have good insurance as with a 15 amp breaker you have no protection.
     
  12. brwarrior

    brwarrior Member

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    The breaker is providing two functions: short circuit and over-current protection. A short would be a low impedance, high current fault and should trip the breaker quickly. Who knows how it's wired. It's still a fire hazard as the primary wire isn't designed for 120V. It's also probably wired in free air without protection and no equipment ground.

    I could see an insurance company walking away on a claim if they found the wiring had been reduced to a hack job like this.

    Why people do this to their trailers I don't know.
     
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