Camco 55272 30A Generator to RV Adapter L5-30 to TT-30

If you've got a portable generator with a locking twist-lock outlet and a 30-amp RV that plugs in with a standard cord, those two ends don't match up on their own. That's exactly the gap the Camco 55272 dogbone adapter fills. On one end it's a NEMA L5-30 locking plug that twists into your generator's L5-30 outlet. On the other end it's a standard NEMA TT-30 receptacle, the same shape your RV shore cord already expects. Plug in, twist to lock, and you're powering the coach.

The dogbone name comes from the shape. Two connector heads joined by a short length of cord, so it flexes and sits without putting a hard sideways strain on either outlet. It's a simple, honest piece of gear. No electronics, no conversion, no magic. It just gets a locking generator outlet talking to a standard 30-amp RV cord, which is the single most common mismatch folks run into the first time they try to run the rig off a generator.

Here's the thing that trips people up. A lot of portable generators put out their 30 amps through an L5-30 locking receptacle, that round outlet where you push in and give a quarter turn. Your RV, though, ends with a TT-30 plug, the flat 3-prong style that goes into a pedestal at the campground. Same 30 amps, same 125 volts, completely different connector. The 55272 bridges the two so you don't have to rewire anything or hunt for a special cord.

Camco lists this adapter for generators with either an L5-30 or an L14-30 locking receptacle, and the plug head itself is the 3-prong L5-30 type. If your generator's 30-amp locking outlet is the L5-30, you're set. If it's the 4-prong L14-30, check the fit against your outlet before you buy, because the connectors aren't the same shape. Either way, look at your generator's outlet panel first so you know exactly which locking receptacle you're working with.

One small touch matters more than you'd think. The plug head has a molded handle. Twist-lock connectors can be stiff, especially when they're new or when the generator outlet is tucked into a recessed panel. A handle gives you something real to grip so you can seat and unseat the connection without wrestling it or yanking on the cord. Do that a few dozen times over a camping season and you'll be glad it's there.

Worth being clear about one thing. This adapter is not waterproof. It's built for the job, but the connection points aren't sealed against rain or spray. So keep the generator and the adapter connection under cover, off the wet ground, and out of standing water. If weather's rolling in, treat the whole hookup the way you'd treat any exposed 30-amp connection and keep it dry. Water and a live 30-amp plug are a bad mix.

A quick reality check on power. This is a 30-amp adapter feeding a 30-amp RV, so it doesn't give you more capacity than your rig already has. At 125 volts, 30 amps works out to roughly 3,600 watts on paper. In practice you want a generator that can comfortably supply that, and you still manage your load inside the coach the same as always. Running the air conditioner, the microwave, and the water heater all at once will trip a 30-amp system no matter what's feeding it. The adapter doesn't change that math, it just moves the power from the generator to the coach.

So who needs this? Anyone with a 30-amp RV and a generator that puts power out through a locking outlet. Boondockers, tailgaters, folks riding out a power outage at home, anybody who wants to top off batteries or run the coach without a pedestal nearby. Toss it in the pass-through with your shore cord and you've got a way to plug in wherever the generator goes. It's an inexpensive part that solves a genuinely annoying problem, and it's the kind of thing you're glad you already own the first time you actually need it.