Inline surge protection in the adapter body, so the pedestal joint is protected without a separate device on the cord.
| Plug / Connector Standard: | NEMA TT-30P to NEMA TT-30R |
| Maximum Current rating: | 30A to 30A |
| Maximum Voltage: | 125V |
| Number of Poles and Wires: | Plug: 3 prong 2 poles 3 wires / Socket: 3 prong 2 poles 3 wires |
| Surge Protection: | Inline element housed in the adapter body |
| Indicator and Cover: | Not fitted. The version with the indicator adds an LED indicator and weather cover |
| Housing Material: | PA66 |
| Blade Material: | Nickel Coated Brass |
| Flamability Rating: | UL 94V-0 |
| Color | As shown. Custom colours available to order |
| Safety Certification: | UL 817, UL, cULus |
| Environmental Certifications: | RoHS, REACH |
| Testing: | Hi-Pot (Dielectric Withstanding Voltage), Polarity (pinout) and Continuity |
| Country of Origin: | Made In China |
| Packing: | Standard Export Carton |
This is a 30 amp RV surge protector adapter that sits between the campground pedestal and the travel trailer cord. One end is a NEMA TT-30P male plug, the other a NEMA TT-30R female receptacle, so it drops in line without any change to the trailer wiring.
It is rated 30A 125V (3,750W) and built to the UL 817 cord set standard with UL and cULus listing. The housing adds surge protection to what is otherwise a plain plug-to-socket joint, which is why most buyers use it in place of a bare 30 amp RV adapter.
Standard 30 amp RV site: push the NEMA TT-30P into the pedestal receptacle, then plug the trailer cord into the adapter. The same part is used on camper vans, small food trailers and work trailers wired to the NEMA TT-30R standard. If the trailer inlet is a four-wire 14-50, order the 30 amp to 50 amp adapter instead.
Look at the pedestal before you plug in. NEMA TT-30R receptacles at older parks are often worn, and a loose fit is what cooks plugs. Check the breaker is a 30A single pole, that the receptacle is not cracked, and that the trailer cord end is clean and dry.
The adapter does not create power. A 30A pedestal still delivers 30A and 125V, and total draw stays under 3,750W.
Common questions about NEMA TT-30P to NEMA TT-30R RV surge adapters
Yes. The NEMA TT-30P plug goes into the pedestal receptacle, and the trailer cord plugs into the adapter socket, so it is the same connection you would make without the adapter, with surge protection added in the middle.
30A at 125V, or 3,750W in total. One 13,500 BTU air conditioner draws roughly 12A while it runs, which leaves room for a microwave or a coffee maker, but not for both at once with the air conditioning on.
Yes. The male NEMA TT-30P plug belongs at the pedestal and the socket takes the trailer cord. Fitting it the other way round is not possible with matching connectors, but it is worth checking the pedestal receptacle for wear and heat marks before the first hookup of the season.
Yes. The A, B and C codes are three shells for the same 30 amp circuit, and private label runs cover the shell, the label and the packing. Samples are available, production starts at 200 to 1000 pieces, and lead time is 15 to 20 working days.
