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: | 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 NEMA TT-30P to NEMA L14-30R adapter with the indicator and cover fitted. Wiring and ratings match the plain build.
Because this is the adapter people use on generators and transfer switch cords, a supply indicator is worth having: it shows what the source is doing before the equipment is switched on.
Standby generator connections, transfer switch inlet cords and welding sets that take an L14-30 plug, fed from a 30 amp RV outlet. Confirm the load needs a locking connector rather than true 240V, exactly as with the plain version.
Check the source before the load. If the indicator reports a fault at the supply, do not close the transfer switch onto it.
Specify the version with the indicator when both are wanted. The plain build is the same part without those fittings.
Common questions about NEMA TT-30P to NEMA L14-30R RV surge adapters
The state of the supply the adapter is plugged into. On generator and transfer switch work that matters, because the equipment downstream is usually switched on after the supply is confirmed. Check the lamp before you close anything.
Yes, where the source is a 30 amp RV type outlet and the load cord is L14-30. The adapter does not change the voltage available, so a load that needs 240V still needs a real 240V source.
The cover closes over the socket when the cord is off, which suits a connection left in place. The adapter is not submersible and should be kept out of standing water like any other cord set.
The NEMA L14-30P to NEMA TT-30R adapter, or the same adapter with the indicator and cover. They take an L14-30 outlet and present a NEMA TT-30R socket for an RV cord.
