Camco 55137 PowerGrip 15A to 50A RV Adapter

The Camco 55137 PowerGrip is the offset adapter that lets you power up a 50-amp RV when the only outlet you can reach is a standard 15-amp receptacle. Think of the power station out in a storage lot, the outlet on the side of the house, or the 15-amp plug at a friend's place. Your big rig's 50-amp cord won't fit any of those on its own. This adapter bridges the gap.

Here's how it works. One end is a 15-amp male plug that goes into the household-style outlet or power station. The other end is a 50-amp female receptacle that accepts your RV's 50-amp shore power cord. Plug the adapter into the wall, plug your coach cord into the adapter, and you've got shore power running to the rig. It's rated for 15 amps at 125 volts, which works out to 1875 watts.

Let's be straight about what that means, because it matters. A 50-amp RV can pull a lot of current when everything's running. This adapter feeds it from a 15-amp circuit, so you're working with 1875 watts total, not the full 50-amp service. That's plenty to keep the fridge cold, charge the house batteries, run the lights, the water pump, and a few outlets. It is not enough to run two rooftop air conditioners plus the microwave plus a hair dryer all at once. Manage your loads and you'll be fine. Try to run the whole coach like you're sitting on a 50-amp pedestal and you'll trip the breaker. That's not the adapter's fault, it's simple electrical math.

The offset design is the part people don't appreciate until they've used one. Instead of the RV cord hanging straight down off the wall outlet and dumping all its weight on the plug, the offset body angles the connection and takes the strain off the prongs. That means a more secure seat in the receptacle and less wear on both the outlet and the adapter over time. The PowerGrip handle is the other nice touch. Anyone who's fought a tight, corroded 50-amp connection knows how much a real handle helps. You grip it, you pull, it comes free. No cracked fingernails, no yanking on the cord.

This is a non-locking adapter, so it seats by friction the way a normal plug does rather than twisting to lock. For the intended use, plugging into a 15-amp house or power-station outlet, that's exactly what you want. It's compact too, about 6-1/2 inches long, 2-3/4 inches wide, and 3-13/16 inches deep, so it tucks into a storage bay or a cord bag without eating half the compartment.

Who's this for? Any 50-amp motorhome or fifth-wheel owner who needs to grab power from a 15-amp source. Storing the rig for the winter and want to keep the batteries topped off and the fridge running? This is the adapter. Parked in the driveway prepping for a trip and want to cool the coach down before you leave? Same deal. Camped near a building with a single 15-amp outlet? It'll get you connected. Just remember to feed it with a heavy-duty extension cord, 12-gauge and as short as you can manage, so you're not losing voltage across a long thin cord.

It also plays nicely with other 50-amp RV cords and electrical accessories, so if you've already got a cord management setup, this drops right in. Camco has been building RV electrical gear since 1966, and this one carries the same no-nonsense reputation. It's a simple piece of kit that does one job and does it well.

A couple of quick tips from experience. Check the outlet you're plugging into before you lean on it. A tired 15-amp receptacle that's been sitting outside for years may not deliver clean power, and a loose outlet heats up under load. If the adapter or the outlet feels warm to the touch, back off your power draw. And when you're breaking camp, pull from the PowerGrip handle, not the cord. Treat the connection with a little respect and this adapter will outlast a lot of the gear on your rig.