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Grey PVC straight blade adapter with 50 amp male 14-50P plug and 30 amp female TT-30R outlet

HUBRV

HUBRV 50 Amp 14-50P to 30 Amp TT-30R straight blade plug

SKU CH-M0AS-38BXN

Converts a 50 amp 14-50P outlet to a 30 amp TT-30R connection with watertight, flame-retardant PVC housing rated from -40°F to 140°F

  • NEMA configuration14-50P
  • Water reistanceWatertight
  • Connect 30-amp RV to 50-amp power via 14-50P plug
  • ETL-listed safety certification for reliable electrical connection
  • Watertight PVC housing withstands rain and outdoor exposure
  • Flame-retardant material operates from -40°F to +140°F
  • Compact straight-blade design fits inside RV power compartment

RV power adapter for 30-amp service

This straight-blade plug converts a 50-amp NEMA 14-50P outlet into a 30-amp TT-30R receptacle. It lets RV owners connect their 30-amp shore-power cord when a campsite or pedestal supplies only a 50-amp outlet. The adapter is ETL listed and built for outdoor use.

Watertight PVC housing handles temperature extremes

Flame-retardant PVC encloses the contacts and remains watertight in rain or splashing water. The material is rated for continuous operation from minus 40°F to plus 140°F, so the adapter stays flexible in freezing conditions and resists softening in high heat. No moving parts or fans mean silent operation.

Replaces bulky dogbone adapters for tight

The compact straight-blade design fits entirely inside an RV power box, eliminating the dangling pigtail that can snag or collect water. It upgrades from a dogbone when storage space is limited or when a clean, flush connection is preferred. Not suited for users who need to step down from 30-amp to lower-amperage service.

How it compares

Measured against everything we stock in AC Plugs & USB Wall Chargers, at today’s prices. Recalculated every night.

Price $9.99
Cheaper than about 74% of the 547 comparable items (median $17.99).

Specifications

Environment & compliance
Water reistanceWatertight
More details
NEMA configuration14-50P
ETL safety listingYes

Questions about this item

How do I install the HUBRV 14-50P to TT-30R adapter without damaging the pins?

Align the 50-amp male blades with the 14-50P receptacle and push straight in until fully seated; forcing at an angle bends the blades and causes poor contact.

What maintenance will the adapter need over time?

Inspect the PVC housing for cracks and the blades for discoloration after each season; replace the unit if the watertight seal is compromised or contacts show heat damage.

What limit appears first when running a 30-amp load continuously through the adapter?

The 30-amp TT-30R female rating caps continuous draw at 30 amps even though the 14-50P male side can supply 50 amps.

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