I finally decided to order the EMS-PT30C from Amazon. Here's how I'm thinking of mounting it. I have a 30A 25' extension cord that I never have to use. I'm thinking of locking the EMS to one of the frame outrigger brackets under the trailer with a chain, plugging the trailer into it and using the extension cord to plug into the electrical box.
In my mind, this has several advantages. First, it will keep the EMS out of the rain. The bracket that I plan to use is also behind the slide, so there will be additional rain protection. Second, the EMS will be less obvious to thieves and no one can complain about it being locked to the electric post. Third, the cord that comes out of the trailer will be out of the mud, so the cord storage box will be kept clean. The extension cord just goes in the Rubbermaid storage bin.
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