Camco 55222 PowerGrip 15A to 30A RV Power Adapter

The Camco 55222 is a PowerGrip electrical adapter that solves one specific problem. You've got a 30-amp RV and the only power around is a standard household outlet. This adapter bridges that gap. The 15-amp male plug, a standard NEMA 5-15P, goes into the wall, and your rig's 30-amp shore cord plugs into the 30-amp female end, a NEMA TT-30R. Plug it inline and you've got shore power where there wasn't any.

It's the piece you want living in the storage bay for driveway camping. Picture loading the camper the night before a trip. You want the fridge cold, the batteries topped off, and the water heater ready to go. Plug this inline and pull power straight from the garage outlet. It's the same story at a friend's house, a relative's driveway, or a campsite where the only hookup is a regular 15-amp receptacle. You stay powered without hunting down a proper 30-amp pedestal, and you don't have to run the generator just to keep the basics alive.

Here's the honest part, and it matters more than the spec sheet. This adapter doesn't magically give your RV a full 30 amps. You're still limited by the 15-amp circuit feeding it. So the fridge, the lights, the converter, and the water pump all run just fine, and you can usually handle one big appliance at a time. What you can't do is fire up the air conditioner, the microwave, and the electric water heater all at once off a household outlet. That 15-amp breaker will trip, every time. Think of it as shore power for the essentials, not a full-service campground hookup.

A little load math helps. A typical RV rooftop air conditioner pulls somewhere around 12 to 16 amps when the compressor kicks on, which is right at the edge of what a 15-amp outlet can give you. That means the AC might run on its own on a cool day, but add the microwave and you're over the limit. The trick is simple. Run one heavy load at a time, keep an eye on what's switched on, and you'll avoid nuisance trips. Folks who've done this a while just get in the habit of it.

Using it is about as simple as gear gets. Plug the male end into a grounded household outlet, connect your 30-amp RV cord to the female end, and you're live. If the outlet is farther away than your cord reaches, add a properly rated 15-amp extension cord between the wall and the adapter. Use a heavy-gauge cord and keep it as short as practical, because thin, long cords drop voltage and heat up under load.

The 55222 is the non-locking, bulk version, molded without the plug-head handle to keep the cost down. If you want the twist-lock security of a locking connection or the molded grip handles that make unplugging easier, Camco makes those variants in the PowerGrip line too. For most folks who just need an occasional household-to-RV connection, this straightforward version does everything you need.

The build is what you'd expect from Camco. It's molded from PVC for weather and impact resistance, rated for 125 volts and 1875 watts, and CSA certified for safe operation. The connectors are the industry-standard NEMA 5-15P and TT-30R, so it drops right into the cords and inlets you already own. One thing to keep in mind. It isn't waterproof, so keep the connection up off wet ground, don't leave it sitting in a puddle, and tuck it somewhere dry when a storm rolls through.

So who's this for? Anyone with a 30-amp rig who occasionally parks somewhere without a 30-amp pedestal. Weekend driveway campers, people staging the camper before a trip, and anyone who likes having a backup power option in the bay. It's cheap, it's compact, and it earns its keep the first time you need it.