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Receptacles

The best NEMA 6-50 outlets for EV charging

If your charger has a 6-50 plug, the receptacle is the one part of the setup worth paying a little more for. Here is what to specify, and what the circuit behind it must be.

By Sawyer V. · Published September 10, 2026

A set of heavy-duty 240-volt plug adapters
Illustrative photo.

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A plug-in charger is only as good as the receptacle it plugs into, and the receptacle is the part that sees heat when something is marginal. For a 14-50 that argument has its own page; the same logic applies to the 6-50 -- the 14-50 receptacle picks.

6-50 receptacle picks

Ranked for a first home charger. Every row jumps to the full write-up below.

#ProductBest forMax outputPrice
1Hubbell HBL9367 NEMA 6-50 receptacleIndustrial-grade 6-50. NEMA 6-50.Industrial-grade 6-5050 A12 kWCheck price on Amazon#ad how we are funded
2Leviton 5374 NEMA 6-50 receptacleIndustrial-grade alternative. NEMA 6-50.Industrial-grade alternative50 A12 kWCheck price on Amazon#ad how we are funded

The two, side by side

Published specifications
Hubbell HBL9367Leviton 5374
Rating50 A, 250 V50 A, 250 V
ConfigurationNEMA 6-50R, 2-pole 3-wire groundingNEMA 6-50R, 2P 3W grounding
GradeIndustrialIndustrial
Wiring and strap--Side wired, #4 to #8 AWG terminals, steel strap
ListingUL and CSA (distributor listing)UL (file E13399) and CSA (distributor listing)
From the manufacturer and distributor pages listed at the foot of this page. A dash means the item is not in the sources we cite.

Which chargers use a 6-50

  • Grizzl-E Classic -- sold with a NEMA 14-50 or a 6-50 plug; ENERGY STAR lists 6-50 versions too. Grizzl-E review.
  • Autel MaxiCharger AC Home -- offered with a NEMA 14-50 or 6-50 plug at 40 A. Autel review.
  • J+ Booster 2 -- ships with 14-50 and 5-15 adapters; a 6-50 adapter is sold separately.

The circuit behind it

A 40 A charger on a 6-50

A charger is a continuous load, so its circuit is sized at 125%: 40 x 1.25 = 50 A

50 A is the 6-50's own rating -- the receptacle and circuit match

No neutral: the circuit needs two hots and a ground

Your electrician sizes the breaker and wire, and fits the protection current code requires

The receptacles in detail

Two industrial-grade 6-50 receptacles, each with the case against it.

1. Industrial-grade 6-50

Hubbell HBL9367 NEMA 6-50 receptacle

Hubbell · NEMA 6-50 · 50 A / 12 kW

An industrial-grade 50 A, 250 V NEMA 6-50 receptacle from the same maker as the site's 14-50 pick, UL and CSA listed per the distributor listing. The part to ask your electrician for if your charger has a 6-50 plug.

What is good

  • Industrial grade, the heavy-duty tier
  • UL and CSA listed, per the distributor listing
  • Matches a 6-50 charger plug -- Grizzl-E and Autel both sell 6-50 versions

What is not

  • Rated for indoor dry locations unless protected -- outdoors needs an in-use cover
  • Only fits 6-50 plugs; most portables ship with a 14-50
  • Installation is electrician work
Published specifications for the Hubbell HBL9367 NEMA 6-50 receptacle
Rating50 A, 250 V
ConfigurationNEMA 6-50R, 2-pole 3-wire grounding
GradeIndustrial
FaceBlack nylon
Horsepower rating3 HP
ListingsUL, CSA (distributor listing)
LocationIndoor dry, unless protected by additional means

Skip this if: Skip it if your charger has a 14-50 plug or is hardwired -- a 6-50 receptacle only fits a 6-50 plug.

Specifications above are the manufacturer’s published figures. Source: Hubbell Wiring Device-Kellems, MRO Supply (distributor listing). We have not tested this unit — see how we pick.

Check price on Amazon#ad how we are funded

2. Industrial-grade alternative

Leviton 5374 NEMA 6-50 receptacle

Leviton · NEMA 6-50 · 50 A / 12 kW

An industrial-grade 50 A, 250 V NEMA 6-50 receptacle, side wired on a steel strap. A solid alternative to the Hubbell if it is what your electrician stocks.

What is good

  • Industrial grade
  • UL listed with a published file number, per the distributor listing
  • Side-wired terminals on a steel strap

What is not

  • Only fits 6-50 plugs; most portables ship with a 14-50
  • Outdoors needs a weatherproof in-use cover
  • Installation is electrician work
Published specifications for the Leviton 5374 NEMA 6-50 receptacle
Rating50 A, 250 V
ConfigurationNEMA 6-50R, 2P 3W grounding
GradeIndustrial
WiringSide wired, #4 to #8 AWG terminals
StrapSteel
ListingsUL (file E13399), CSA, NOM (distributor listing)

Skip this if: Skip it if your charger has a 14-50 plug or is hardwired -- a 6-50 receptacle only fits a 6-50 plug.

Specifications above are the manufacturer’s published figures. Source: Leviton, Ready Wholesale Electric Supply (distributor listing). We have not tested this unit — see how we pick.

Check price on Amazon#ad how we are funded

FAQ

Questions people actually ask

What is the best NEMA 6-50 outlet for an EV charger?
An industrial-grade receptacle such as the Hubbell HBL9367 or Leviton 5374, installed on a 50 A circuit by an electrician.
Is a 6-50 or 14-50 better for EV charging?
Either carries a 40 A charger. The 6-50 has no neutral, so the circuit needs one fewer conductor; the 14-50 is the more common plug on portable chargers. Match the receptacle to your charger's plug. 6-50 vs 14-50.
What breaker does a NEMA 6-50 EV outlet need?
For a 40 A charger, a 50 A circuit: 40 x 1.25 = 50. Your electrician sizes the breaker and wire.

Sources

Where these numbers come from

  1. HBL9367 straight blade receptacle, industrial grade, 2-pole 3-wire grounding, 50 A 250 V, 6-50R — Hubbell Wiring Device-KellemsRating, configuration and grade. Fetched 2026-09-10.
  2. Hubbell HBL9367 heavy duty receptacle, 50A 250V, NEMA 6-50R — MRO Supply (distributor listing)UL and CSA listing, 3 HP rating, nylon face, indoor-dry location rating. Fetched 2026-09-10.
  3. 5374: 50 Amp, 250 Volt, NEMA 6-50R, 2P, 3W, flush mounting receptacle, industrial grade — LevitonRating, configuration, grade, side wiring and steel strap. Fetched 2026-09-10.
  4. Leviton 5374, 50 Amp, 250 Volt, NEMA 6-50R, 2P, 3W, flush mounting receptacle — Ready Wholesale Electric Supply (distributor listing)UL listing (file E13399), CSA and NOM certification, #4 to #8 AWG terminals. Fetched 2026-09-10.
  5. Grizzl-E Classic — United Chargers
  6. MaxiCharger AC Home specifications — Autel Energy
  7. NEC Article 625: EV charging equipment — WireRefContinuous-load rule behind every circuit figure on this page.

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