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joem789's avatar
joem789
Explorer
Mar 03, 2017

Camco 55333 generator adapter a fire hazard?

Hi

Back in 2015 I bought a 4000 watt generator to use with my 30A RV. Since it had a twist lock connection, I had to find an adapter. The Camco was it. And it is rated at 30A. We have had zero problems out of it until recently.

Recently, I switched out the camper charge controller after finding out that "dumb" chargers arent suitable for charging batteries. The new one has a multi stage feature which does a great job. The only catch is that it ties up more of our power. Since we don't use that much, it isnt ever a problem. But I could tell it uses more because when I run the microwave, it kicks the generator's breaker switch. This only happens if the charger is in BOOST mode. If I switch it out, the microwave runs fine. This is a point I am making to clarify that the 30A breaker on the generator is working.

All in all. It is clear that we are pulling close to the 30A max more constantly than before. But that shouldnt be a problem since the Camco is rated at 30A. RIGHT? NOT.

I recently went out to check out the generator and unplugged the cord. I immediately saw the dreadful sight of a melted adapter stuck to my camper cord's plug. I had to pry it off with a screwdriver and sand the blades of the cord. The adapter is completely unsuitable for use. So it is NOT suitable for 30A, even though it clearly states it on the adapter!

All that said and done. Does anyone know of a product that actually works and won't melt? Thankfully my other generator allows me to plug my cord straight in.
  • I'd suggest that repeated surge current demands are far exceeding this adapter's 30 amp rating. The solution - replace it with a new one and DON'T try to run any heavy draw device such as the microwave oven when there's any chance at all the converter / charger is in bulk charge mode.
  • The problem was a poor connection at the connector: either the prongs of the plug or the contacts in the socket were dirty, or had grown loose with age, or were not fully seated, or the wire connections to one or the other were poor from the factory or from use (or abuse).

    The adapter and shore power cord likely were perfectly suitable for carrying the full load when new. Things wear out over time. It is wise to check up on them from time to time; see if the connection is getting warm, the prongs are clean and not scorched, etc.
  • What kind of adapter?
    hockey puck ?
    That's not rated for 30amps that's rated for 15 amps, (it just adapts your 30amp cord to use 15 amps or less from a 15 amp outlet, the most a duplex can be rated is 20 amps, you have also damaged the duplex outlet in the generator, and it should be replaced

    Note a twist lock plug can be 20 or 30 amp,
    A dog bone/pigtail style twist lock adapter, should hold up very well

    No hockey puck is going to hold up to repeated heavy amps
    Get a dog bone style to RV adapter and reduce your load
    Turn some thing off like the new charger, when using MW or a/ C
    Consider Charging batteries before using a/C or MW
    The fuel difference will be minimal, only total runtime will change
    Getting some charge into the batteries first reduced the power load needed when cooking is added, and lessens the strain on the generator and the adapters
  • Hi,

    Treat the prongs and socket with deoxit. I do mine about every six months.

    Other anti corrosion sprays would work as well. Amsol makes a nice one. It works well with the storage locks, too.

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