RV Power Outlet Box 50 Amp RV Surge Protector 50 Amp RV Circuit Analyzer 50 Amp RV NEMA 14-50R Receptacle NEMA 14-50P Plug NEMA 14-50R Receptacle
Occasion RV park 14-50R Receptacle 14-50R Receptacle RV Trailer Cooking ranges Cooking ranges
Weatherproof ✓
Anti-Slip design ✓ ✓ ✓
Ergonomic Handle ✓
Certification ETL ETL ETL ETL UL UL
The NEMA 14 devices are four-wire grounding devices (hot-hot-neutral-ground) available in ratings from 15 to 60 A. The voltage rating is 250 V. Of the straight-blade NEMA 14 devices, only the 14-30 and 14-50 are in common use. The 14-30 is used for electric clothes dryers, the 14-50 is used for electric cooking ranges, and either may also be used for home charging of electric vehicles. The NEMA 14 connectors are essentially the replacements for the older NEMA 10 connectors described above, but with the addition of a dedicated grounding connection.
All NEMA 14 devices offer two hots, a neutral, and a ground, allowing for both 120 and 240 V when supplied by split-phase power, or 120 and 208 V if the supply is three-phase. The 14-30 has a rating of 30 A, and an L-shaped neutral blade. The 14-50 has a rating of 50 A, and a straight neutral blade sized so that it does not mate with 14-30 connectors.
NEMA 14-50 devices are frequently found in RV parks, since they are used for "shore power" connections of larger recreational vehicles. Also, it was formerly common to connect mobile homes to utility power via a 14-50 device. Newer applications include Tesla's Mobile Connector for vehicle charging, which formerly recommended the installation of a 14-50 receptacle for home use.
Specifications
Voltage: 125/250 Volts AC
Amperage: 50 Amps
Plug: NEMA 14-50
Poles / Wires: 3 Pole, 4 Wire
Color: Black
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Item# : SPM9165610423
Model # : 691032142532
