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551.71(A)(B)(C)(F) Receptacle Requirements at RV Parks

Revision

Change Summary

  • The NEC now requires the receptacles in RV parks to be weather-resistant.

NEC®Text

Article 551 Recreational Vehicles and Recreational Vehicle Parks
551.71 Type Receptacles Provided.
(A) 20-Ampere. Every recreational vehicle site with electrical supply shall be equipped with recreational vehicle site supply equipment with at least one 20-ampere, 125-volt weather-resistant receptacle. This receptacle, when used in recreational vehicle site electrical equipment shall not be required to be tamper-resistant in accordance with 406.12.
(B) 30-Ampere. A minimum of 70 percent of all recreational vehicle sites with electrical supply shall each be equipped with a 30-ampere, 125-volt weather-resistant receptacle conforming to 551.46(C)(1). The supply shall be permitted to include additional receptacle configurations conforming to 551.81. The remainder of all recreational vehicle sites with electrical supply shall be equipped with one or more of the receptacle configurations conforming to 551.81.
(C) 50-Ampere. A minimum of 20 percent of existing and 40 percent of all new recreational vehicle sites with electrical supply, shall each be equipped with a 50-ampere, 125/250-volt weather-resistant receptacle conforming to the configuration as identified in Figure 551.46(C)(1). Every recreational vehicle site equipped with a 50-ampere receptacle shall be also equipped with a 30-ampere, 125-volt receptacle conforming to Figure 551.46(C)(1).
These electrical supplies shall be permitted to include additional receptacles that have configurations in accordance with 551.81. The weather-resistant requirement for 50-ampere, 125/250-volt receptacles shall become effective January 1, 2026.
Informational Note: The percentage of 50-ampere sites required by 551.71 could be inadequate for seasonal recreational vehicle sites serving a higher percentage of recreational vehicles with 50-ampere electrical systems. In that type of recreational vehicle park, the percentage of 50-ampere sites could approach 100 percent.
(F) GFCI Protection
(2) Receptacles Installed in Recreational Vehicle Site Equipment.
Ground-fault circuit-interrupter protection shall only be required for 125-volt, single-phase, 15 and 20-ampere receptacles

Material taken from the National Electric Code. is reprinted with permission from NFPA 70., 2023 edition. National Electrical Code®, Copyright 2022, National Fire Protection Association, Quincy, MA. All rights reserved.

Figure 1

Expert Analysis

A revision has been accepted that covers requirements for 30 and 50-ampere receptacles that requires them to be weather-resistant and conform to Figure 551.46(C)(1) in the NEC. The weather-resistant requirement for the 50-ampere receptacles become effective January 1, 2026.

Leviton Note:Looking carefully at the language used in this article it says “shall each be equipped with a XX-amp, YYY volt weather-resistant receptacle” and additional receptacles are permitted as long as they conform to 551.81. However the article doesn’t say that these additional receptacles must be WR, nor does 551.81.

In addition, the WR requirement for 50 Amp takes effect Jan. 1, 2026, however no grace period was given for the 30 Amp receptacle.

Leviton Solution
For RV connection, Leviton offers receptacles to comply with requirements of Article 551.71 Weather-Resistant GFCI Receptacles

Receptacles at RV sites can take a beating. Leviton’s SmartlockPro® Weather-Resistant (WR) GFCI receptacles are up to the challenge. They are UL Listed weather-resistant to comply with Section 551.71(A) of the National Electrical Code®. Constructed with UV stabilized thermoplastic for high cold impact resistance, the devices feature stainless steel straps and mounting screws. Rain or shine, Leviton offers products to meet all your outdoor needs.

Important: Covers must be used with WR GFCI receptacles in damp or wet locations per NEC Section 406.9(B)(1).

Figure 2

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