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 L14-30R |
| Maximum Current rating: | 30A to 30A |
| Maximum Voltage: | 125V/250V |
| Number of Poles and Wires: | Plug: 3 prong 2 poles 3 wires / Socket: 4 prong 3 poles 4 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 |
The NEMA TT-30P to NEMA L14-30R adapter presents a four-wire NEMA L14-30R locking socket from a NEMA TT-30P RV plug. The socket is a 125/250V three pole four wire configuration rated 30A.
The feed is what decides the output. A 30 amp RV pedestal supplies a single 125V leg, so the adapter suits equipment that needs a locking 30 amp connector, not equipment that needs a genuine 240V supply. Check the load before you buy.
Generator inlet cords, transfer switch connections and welders that use an L14-30 connector, hooked to a 30 amp RV pedestal or RV outlet as the source. Where the source is a real L14-30 outlet, the reverse part, NEMA L14-30P to NEMA TT-30R adapter, is the one you want.
Confirm the number of live conductors on the supply first. The NEMA L14-30R socket has four wires; a 125V pedestal feed uses three of them, and a load expecting 240V will not run from it.
Connector ratings describe the socket, not the supply. Available voltage and current come from the outlet you plug into.
Common questions about NEMA TT-30P to NEMA L14-30R RV surge adapters
Equipment that uses an L14-30 plug: generator inlet cords, transfer switch connections and welding sets are the common ones. The socket is a 125/250V, three pole, four wire locking configuration rated 30A.
No, and this is the point to check before ordering. The socket is built for four wires, but a 30 amp RV pedestal supplies one live 125V leg. Equipment that needs genuine 240V will not run from it. The adapter matches the connector, it does not create a second hot leg.
Because the equipment you are feeding uses an L14-30 connector. It is a connector match for situations where the source is a 30 amp RV outlet and the load has a locking inlet. Confirm the supply first, then buy.
30A, built to UL 817 with UL and cULus listing and RoHS, REACH compliant materials. Available current still comes from the outlet, so a 30 amp pedestal supplies 30A.
