Inline surge protection in the adapter body, so the pedestal joint is protected without a separate device on the cord.
| Plug / Connector Standard: | NEMA 14-50P to NEMA TT-30R |
| Maximum Current rating: | 50A to 30A |
| Maximum Voltage: | 125V/250V |
| Number of Poles and Wires: | Plug: 4 prong 3 poles 4 wires / Socket: 3 prong 2 poles 3 wires |
| Surge Protection: | Inline element housed in the adapter body |
| Indicator and Cover: | LED indicator and weather cover fitted |
| 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 the 50 to 30 amp RV adapter with the indicator and cover fitted. Same job as the 50 amp to 30 amp adapter: NEMA 14-50P plug at the pedestal, NEMA TT-30R socket for the trailer cord.
The difference is at the housing. The LED panel shows the state of the supply, and the cover closes over the receptacle when the trailer is unplugged. Both are worth having on a part that spends the season outdoors.
For a 30 amp trailer that is regularly parked on 50 amp sites, and for anyone who wants to see at a glance that the pedestal is sound before the coach is connected. Ratings do not change from the 50 amp to 30 amp adapter: the trailer side stays 30A 125V.
If the indicator shows a fault, do not work around it with another adapter. Move to a different pedestal or report it to the park office, then check the trailer cord end at the same time.
Order the indicator version when both are required. The plain 50 amp to 30 amp adapter is the same adapter without those fittings.
Common questions about NEMA 14-50P to NEMA TT-30R RV surge adapters
The indicator panel on the housing and a cover over the NEMA TT-30R socket. Plug, socket, current and certification are the same, so the extra cost buys you the status read and the protection of the socket face between hookups.
It can, and the cover is useful when the trailer cord is off. Check the connector faces every few weeks for heat discolouration and clean any corrosion off the pins. A joint that has been outdoors for months deserves a look before a long trip.
No. The trailer side is 30A 125V and the plug side is the NEMA 14-50 configuration. The fittings are added to the housing, not to the circuit.
Four-wire NEMA 14-50R receptacles: 50 amp RV pedestals, 14-50 range and dryer outlets and 14-50 generator outlets. It will not fit a 30 amp pedestal, which needs the NEMA TT-30 type instead.
