An RV shore-power adapter must match two different connections: the outlet supplying power and the plug on the RV's power cord. Camco PowerGrip adapters are available in 15-, 30- and 50-amp connector patterns, but their direction matters. For example, a 50-amp male to 30-amp female adapter is not interchangeable with a 30-amp male to 50-amp female adapter.

Important: An adapter changes the physical connection, not the amperage or voltage the campground or household outlet can deliver. A 15-amp supply does not become 30- or 50-amp service, and a 30-amp 125V outlet does not become full 50-amp 125/250V service. Stay within the supply circuit's limits and your RV's power requirements.

RV power adapter connection diagrams

Read each connection from left to right: power source → adapter's male plug → adapter's female connector → RV shore-power cord. The diagrams identify connector directions only; they are not wiring schematics.

30A RV using a 15A source
15A household outlet55165 · 15A male / 30A female30A RV cord
Supply remains limited to the 15A circuit; Camco adapter rating 125V / 1,875W.
30A RV using a 50A pedestal
50A pedestal receptacle55175 · 50A male / 30A female30A RV cord
RV connection remains 30A, 125V; Camco adapter rated 3,750W.
50A RV using a 30A pedestal
30A TT-30 pedestal55185 · 30A male / 50A female50A RV cord
Available supply is 30A at 125V—not 50A or 240V service.
50A RV using a 15A source
15A household outlet55168 · 15A male / 50A female50A RV cord
For limited loads only; 125V / 1,875W adapter rating.

Common PowerGrip dogbone adapters

These four flexible adapters have different plug and receptacle arrangements. Select the one that matches both ends of your connection, rather than relying on the adapter's colour or its overall shape.

Compact adapter and reverse-direction option

A compact plug adapter serves the same connection purpose without the short flexible cord. Camco also offers a reverse-direction adapter for using a 15-amp-style device at a compatible 30-amp TT-30 pedestal.

Camco PowerGrip part number and plug chart

Male identifies the plug that fits the power source. Female identifies the connector that accepts your RV cord or other compatible equipment.

Camco MPN Connection direction Male plug Female connector Style
55165 15A source to a 30A RV 5-15P TT-30R Flexible dogbone
55175 50A source to a 30A RV 14-50P TT-30R Flexible dogbone
55185 30A source to a 50A RV TT-30P 14-50R Flexible dogbone
55168 15A source to a 50A RV 5-15P 14-50R Flexible dogbone
55223 15A source to a 30A RV 5-15P TT-30R Compact plug
55155 30A pedestal to a 15A device TT-30P 5-15R Flexible dogbone
55138 15A source → 30A RV 5-15P TT-30R Compact
55135 50A source → 30A RV 14-50P TT-30R Compact
55133 30A source → 50A RV TT-30P 14-50R Compact

Camco 55165 and 55223 serve the same 15A-to-30A connection, but 55165 is a flexible dogbone and 55223 is compact. Other compact options include 55138 for 15A-to-30A, 55135 for 50A-to-30A and 55133 for 30A-to-50A.

How to choose the correct adapter

  1. Identify your RV's cord end. A conventional 30-amp RV plug uses the TT-30 pattern; a conventional 50-amp RV plug uses the four-prong 14-50 pattern. Check the actual connector, especially if your RV has a detachable cord or a previous modification.
  2. Identify the available supply outlet. A standard grounded 15-amp outlet uses the 5-15 pattern; RV pedestal outlets can also have dedicated 30-amp TT-30 or 50-amp 14-50 receptacles. Match the supply outlet before selecting the adapter's male end.
  3. Choose the correct direction. The male plug must fit the outlet, and the female connector must accept the RV cord. For a 30A RV at a 50A pedestal use 55175, not 55185. For a 50A RV at a 30A pedestal use 55185, not 55175.
  4. Limit the loads. Camco rates its 15A-source dogbones here at 125V / 1,875W and its 30A-source dogbone at 125V / 3,750W. These are adapter ratings, not a promise that the supply has spare capacity. Reduce RV loads accordingly and follow the power system's instructions.
  5. Inspect the connection. Use correctly grounded, compatible outlets and cords in good condition. Switch off the pedestal breaker before connecting or disconnecting when the installation allows, keep plugs fully seated and avoid standing water. A basic dogbone adapter is not a surge protector or a substitute for appropriate electrical protection.

Need to replace a damaged 30A power-cord end rather than adapt a pedestal? See the Camco 55245 TT-30 male replacement plug and Camco 55343 female replacement connector. Repair of a shore-power cord requires correct conductor connections and electrical testing; consult a qualified RV electrical technician.

For product configurations and ratings, see Camco's official PowerGrip adapters and dogbones collection.

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