Tesla Gen 2 Mobile Connector Adapter Decision Matrix (2026)
TL;DR
Pick the right adapter in two confirmed steps: (1) identify your Tesla Mobile Connector model and generation using the controller label (not purchase date), and (2) identify your outlet's NEMA designation from the receptacle face. Then select the wall-side NEMA adapter documented as compatible with both.
These wall-side NEMA adapters attach to the Mobile Connector's power-input end. They are different from vehicle-side J1772 / NACS adapters (which change the connector that plugs into the car) and from the Tesla Outlet Adapter accessory used to power appliances from the car.
WenStorm sells seven wall-side NEMA adapters compatible with the Tesla Mobile Connector: 5-15, TT-30, 10-30, 14-30, 6-50, and 14-50 as standalone adapters, and a TT-30 + 14-50 RV park kit. The Mobile Connector is capped at 32A across both Gen 2 and Gen 3; each adapter signals its NEMA type to the Mobile Connector, which enforces the current limit for that outlet.
Selection checklist: Identify your Mobile Connector → identify your outlet → check the matching adapter below.
The decision matrix: outlet in, adapter out
Identify the outlet on your wall. Read across the row. That is the adapter you need. All WenStorm NEMA adapters below are documented as compatible with the Tesla Gen 2 and Gen 3 Mobile Connectors; the TT-30 product page currently documents Gen 2 compatibility only (see the TT-30 section below for the status note). Receptacle rating and installed-circuit capacity are separate concerns — the NEMA designation on the receptacle face identifies the outlet type, not the installed breaker rating or conductor condition.
| Outlet | Voltage | Circuit rating | MC current | Input power | Tesla-official adapter? | Typical use | Note |
|---|---|---|---|---|---|---|---|
| NEMA 5-15 | 120V | 15A | 12A | ~1.4 kW | Yes | Standard household outlet | Slowest option; adapter included with current U.S. Mobile Connector |
| NEMA 5-20 | 120V | 20A | 16A | ~1.9 kW | Yes | 20A household / light commercial | T-slot neutral distinguishes it from 5-15. Tesla offers 5-20 in its official Gen 2 adapter lineup; WenStorm does not currently sell a standalone 5-20. |
| NEMA TT-30 | 120V | 30A | 24A* | ~2.9 kW* | No — third-party | RV pedestal, campground | Tesla does not list an official TT-30 in its Gen 2 lineup; verify the third-party adapter's signaled current |
| NEMA 10-30 | 240V | 30A | 24A | ~5.8 kW | Yes | Legacy 3-prong dryer outlet (pre-1996) | Non-grounding configuration — inspect the existing circuit condition first |
| NEMA 14-30 | 240V | 30A | 24A | ~5.8 kW | Yes | Modern 4-prong dryer outlet (post-1996) | Four-wire with separate ground |
| NEMA 6-50 | 240V | 50A | 32A | ~7.7 kW | Yes | Welder / workshop circuit | No neutral pin |
| NEMA 14-50 | 240V | 50A | 32A | ~7.7 kW | Yes | Dedicated EV / RV pad / range circuit | Adapter included with current U.S. Mobile Connector |
Input power is calculated as voltage × Mobile Connector current at nominal supply. Per-model miles-per-hour figures vary — Tesla's current adapter documentation lists a range from roughly 20 mi/hr (Model X on 14-50) to 30 mi/hr (Model 3 on 14-50); defer to the vehicle's charging screen for the real-time rate. * TT-30 is a third-party adapter; verify the manufacturer's signaled current before use.
How the Tesla Mobile Connector determines charging current
The outlet, the adapter, the Mobile Connector, and the vehicle all affect the final charging rate.
The branch circuit determines how much power is physically available at the outlet. The Tesla Mobile Connector detects the attached NEMA adapter and uses that adapter's signaled type to set the appropriate current limit. The Mobile Connector itself is capped at 32A across both Gen 2 and Gen 3, and the vehicle may impose an additional charging limit.
Per Tesla's current Gen 3 Mobile Connector Owner's Manual, the adapter-to-current mapping is: 12A on 5-15, 16A on 5-20, 24A on 10-30 and 14-30, and 32A on 6-50 and 14-50. Changing to a "bigger" adapter on the same outlet does not increase the electrical capacity of the branch circuit behind it — a 14-50 adapter on a 30A circuit is not a permitted configuration in the first place, because the adapter and the outlet must match.
So the adapter is not passive signalling that the car chooses to ignore, and it is not "the thing that sets the charge rate" independently either. It is a mandatory disambiguator: the Mobile Connector cannot know how much current the outlet is rated for until the adapter tells it, and once told, it enforces the limit associated with that adapter.
Identify your Mobile Connector (physical check, not purchase date)
Confirm your Mobile Connector generation from the equipment itself — not from vehicle delivery dates or assumed purchase years. Read the controller housing's own label and inspect the adapter-connection end.
- Controller label. The Mobile Connector controller (the box in the middle of the cable) has a printed label with the model designation. The Gen 2 and Gen 3 Mobile Connectors are physically distinct products with different model markings; the label is the authoritative identifier.
- Adapter-connection end. Both generations use the same removable NEMA wall-side adapter family, but the controller end that joins the adapter has a different physical shape between generations. If you have an adapter the connector will attach cleanly if the generation matches.
- Gen 1 is distinct. Tesla's older Gen 1 Mobile Connector uses a different adapter system that is not compatible with current Gen 2 or Gen 3 wall-side NEMA adapters. If you have a Gen 1, these adapters are not for your equipment.
Both Gen 2 and Gen 3 are capped at 32A continuous. If you cannot read the label or are unsure, see "If you can't identify your equipment" below.
Equipment-photo note: this guide links to WenStorm product pages for each adapter; those pages show the adapter photographs. Side-by-side Mobile Connector controller photographs (Gen 1 / Gen 2 / Gen 3 label views, adapter-connection views) are a planned addition — until then, consult the controller's printed label and compare against Tesla's own product-support pages.
Adapter-by-adapter: what each one is for
NEMA 5-15 — the outlet that came with your house
NEMA 5-15 is the common standard 120V household receptacle in the US. Plug the Mobile Connector into it with the 5-15 adapter and you get 12A at 120V, which is roughly 2 to 3 miles of range per hour depending on the vehicle. Slow, but widely available. The 5-15 adapter ships with the current U.S. Mobile Connector, so most Tesla owners already own it. WenStorm sells it as a replacement.
NEMA TT-30 — RV parks and campgrounds (third-party adapter)
Status note: the WenStorm TT-30 product page currently documents Tesla Gen 2 Mobile Connector compatibility only; owner confirmation that TT-30 also fits the Gen 3 Mobile Connector was received 2026-10-28 and the product page is scheduled to be updated to match. Until that product-page update is published, treat TT-30 compatibility beyond Gen 2 as pending written confirmation.
The TT-30 looks like a 3-prong household outlet stretched sideways. It is 30A but only 120V, so a properly designed TT-30 adapter for the Mobile Connector delivers up to 24A of charge current and about 5 to 7 miles of range per hour, depending on the vehicle.
Tesla does not currently list an official TT-30 adapter in its Gen 2 NEMA lineup. TT-30 solutions for the Mobile Connector are aftermarket. A properly designed TT-30 adapter must signal an appropriate current limit to the Mobile Connector; verify the manufacturer's specifications, and ideally the observed current draw on the vehicle's charging screen, before relying on it. WenStorm's TT-30 adapter is a Gen 2 Mobile Connector accessory built to this pattern.
A TT-30 adapter lets a Tesla charge from a 120V RV pedestal at up to 24A, provided the pedestal's circuit is sound and the Mobile Connector's current limit for a TT-30 adapter is 24A. Actual overnight charge depends on your vehicle's battery size, state of charge on arrival, and the ambient temperature.
NEMA 10-30 — older 3-prong dryer outlets
If your house was built before 1996 and you still have the original dryer receptacle, it is almost certainly a NEMA 10-30. Three prongs, 30A, 240V, with two hot conductors and a neutral but no separate equipment-grounding conductor. The National Electrical Code phased 10-30 out for new construction in the 1996 revision.
Tesla sells an official 10-30 adapter for the Mobile Connector and specifies 24A on that adapter, which delivers about 15 to 18 miles of range per hour on a healthy circuit. Because existing 10-30 installations vary considerably in age and wiring condition, don't treat a matching receptacle alone as proof the circuit is suitable for sustained EV charging. Read our full 10-30 safety walkthrough before ordering, and have the branch circuit inspected if the wiring or receptacle condition is uncertain.
NEMA 14-30 — modern 4-prong dryer outlets
Post-1996 dryer receptacles are the 14-30: four prongs, 30A, 240V, with a real ground pin. This is the most common target for at-home Tesla charging without an install, because you are borrowing an existing 30A circuit the laundry room already uses. Expect 24A and about 15 to 18 miles per hour, matching the 10-30 in speed but with the safer grounding scheme.
NEMA 6-50 — welder outlets and workshops
The 6-50 is common in workshops and garages that hosted a stick welder or plasma cutter. Three prongs, 50A, 240V, no neutral. On a Mobile Connector it pulls the full 32A, delivering 20 to 24 miles of range per hour. If your garage already has one wired to a 50A breaker with proper conductors, you have a Level 2 charging outlet without an electrician visit.
NEMA 14-50 — dedicated EV outlets and RV pads
The 14-50 is the default Tesla home-charging outlet. Four prongs, 50A, 240V, with neutral and ground. It is what electricians install when a homeowner asks for "a Tesla plug in the garage," and it is the standard RV pad receptacle at campgrounds. On the Mobile Connector, 32A. 20 to 24 miles per hour. If your install is fresh, insist on a spec-grade or industrial-grade receptacle — the residential-grade 14-50 has a documented history of thermal failure under EV-continuous load.
If none of the adapters match your situation
Not every reach or outlet problem is solved by picking a Mobile Connector adapter. Common cases where a wall-side NEMA adapter is not the answer:
- You own a Tesla Gen 1 Mobile Connector. The current Gen 2 / Gen 3 NEMA adapter family does not fit. Address your charging setup with a Tesla Wall Connector install or a different EVSE.
- You have a NEMA outlet not in the standard list (6-15, 6-20, 5-30, 14-20, 15-50, L5-30 etc.). The WenStorm NEMA adapter lineup covers the common home + RV receptacles. For other receptacles, an electrician can either change the receptacle to a supported NEMA type OR install a new dedicated circuit sized for your intended charging rate.
- You have no suitable existing outlet at all, or an older installation whose breaker, conductor gauge, or receptacle condition cannot be verified. The right next step is an electrician-installed dedicated NEMA 14-50 circuit for Mobile Connector charging, or a hardwired EVSE for faster rates. The wall-side NEMA adapter does not resolve branch-circuit or receptacle issues.
- You want faster than 32A charging. The Mobile Connector is capped at 32A continuous across both Gen 2 and Gen 3. For 40A or 48A continuous charging, a dedicated plug-in or hardwired EVSE rated for the higher current is required — not a different Mobile Connector adapter.
Common questions
Which adapter comes in the Tesla box?
Tesla's current U.S. Mobile Connector ships with both the NEMA 5-15 and NEMA 14-50 adapters. Other NEMA adapters — 5-20, 6-15, 6-20, 10-30, 14-30, and 6-50 — are available as official Gen 2 accessories, sold individually or as a seven-adapter bundle. TT-30 is not in Tesla's official Gen 2 lineup; TT-30 adapters for the Mobile Connector are third-party products.
Do I need the 6-50 if I already own the 14-50?
Only if you actually have a 6-50 receptacle. The 14-50 adapter does not fit a 6-50 outlet (different pin count and geometry), and 3-to-4-prong "converter" adapters for EV charging are a bad idea because they either fabricate a neutral or bond neutral to ground at the plug — both are safety compromises. Match the adapter to the outlet, one to one.
What about 10-30 safety on a pre-1996 dryer outlet?
The 10-30 is a non-grounding configuration — two hots and a neutral, with no separate equipment-grounding conductor. Because 10-30 installations vary in age and condition, a matching receptacle alone is not evidence that the branch circuit is suitable for sustained EV charging. Tesla sells an official 10-30 adapter (24A on the Mobile Connector), but if the wiring or receptacle condition is uncertain, have the circuit inspected before relying on it, and price a 14-30 upgrade if the panel run is short.
Can I use these adapters with a non-Tesla vehicle?
The wall-side NEMA adapter sits between the receptacle and the Mobile Connector controller; it does not change the car-side connector. If a non-Tesla vehicle is charging through a Tesla Mobile Connector using a Tesla-to-J1772 vehicle-side adapter (the adapter at the car's inlet), the wall-side NEMA adapter still only needs to match the outlet and the Mobile Connector generation. Confirm the vehicle-side adapter arrangement is permitted by both the vehicle manufacturer and Tesla for that specific EV before relying on it.
Can I use these adapters with a non-Tesla portable charger?
No. These adapters have a Tesla-specific coupling that only mates with a Tesla Mobile Connector controller. They are not universal EVSE inputs. A Bolt or Ioniq owner who wants a plug-in portable Level 2 EVSE needs a J1772-native portable charger with its own NEMA plug, not a Tesla wall-side NEMA adapter.
Does the adapter set the charge rate?
The attached adapter signals its NEMA type to the Mobile Connector, and the connector then enforces the corresponding current limit — 12A for 5-15, 24A for 10-30 and 14-30, 32A for 6-50 and 14-50 (Gen 3 manual). So the adapter is not a passive tag the car may ignore, and it is not an amplifier either. It is a mandatory disambiguator: it tells the Mobile Connector what current is legal for that outlet, and the connector caps to that value. The branch circuit ultimately determines what the outlet can physically deliver, and the vehicle may impose an additional limit.
If you can't identify your equipment or outlet
WenStorm's interactive adapter finder walks the outlet-identification question tree and matches your answers to the corresponding adapter in our catalog. The tool does not analyze photographs and does not confirm whether your installed branch circuit is suitable for continuous EV charging — that is an electrical-condition check, not a product-selection question.
If you remain unsure after using the tool, contact WenStorm support and provide three photos: (1) the Mobile Connector controller's printed label; (2) the end of the Mobile Connector where the removable NEMA adapter attaches; (3) the face of your wall receptacle. Please do not open electrical equipment or disassemble the receptacle to take the photo.
An outlet photo helps identify the receptacle's NEMA type by its slot pattern. It cannot establish whether the branch circuit, breaker, conductor gauge, or receptacle condition is suitable for sustained EV charging. For an unknown or older installation, have a licensed electrician inspect the circuit.
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