Lectron vs A2Z NACS-to-CCS Adapter

The ratings: what 1000V buys you

Both publish a 500A current ceiling, which comfortably exceeds anything a Supercharger stall delivers. On current, treat them as equivalent.

The difference is voltage. The A2Z publishes 1000V; the Lectron publishes a lower figure. For a conventional 400V car this is academic — neither is anywhere near its limit and both have enormous margin. It becomes relevant if you drive an 800V vehicle: an Ioniq 5, an EV6, an EV9, a Taycan, and an increasing share of new models. Those cars are the ones whose sessions push closest to a part’s voltage envelope, and headroom is what keeps a component from being the constraint.

Two honest caveats. First, an 800V car at a 400V-native Supercharger stall is usually limited by the architecture mismatch long before any adapter is the issue — our Kia EV6 and Ioniq 5 pages explain that in detail. Second, a higher published ceiling is a design margin, not a promise of better real-world behavior. It is a reasonable tiebreaker, not a decisive one.

The interlock: the Lectron’s clearest argument

The Lectron listing publishes an interlock, and it is the specification we would most want on a DC adapter.

An interlock is a mechanism that prevents the adapter being separated from the connector while current is flowing. That matters because breaking a several-hundred-amp DC connection under load is exactly the event you want made impossible rather than merely unlikely — it can arc, and arcing damages contacts on both the adapter and, potentially, the station. On an AC adapter this is a non-issue. On DC it is the safety feature that separates a properly engineered part from a cheap one.

If you weight this above the voltage headroom — and there is a good argument for doing so, particularly with a 400V car where the extra volts are irrelevant — the Lectron is your adapter. The full NACS-to-CCS roundup also covers the FOCSPROD, which publishes an interlock at a lower price.

Brand track record

Lectron is the most established name in consumer EV adapters. It makes the J1772-to-Tesla adapter that sits in an enormous number of gloveboxes, plus portable chargers and AC adapters in both directions. Long product lines with wide distribution generate a lot of field data, and companies that stay in a category tend to have fixed things quietly along the way. If you want the DC part looked at on its own terms rather than as half of a head-to-head, this Lectron NACS adapter review goes through the build and the everyday handling in more detail.

A2Z is the specialist. Its focus is high-current EV connectors rather than a broad accessory catalog, and its published specifications are the most aggressive here. Specialists often build the better part; generalists often have the better support.

Neither answer is wrong. If you buy a lot of EV accessories and value one brand you can go back to, Lectron. If you want the part whose entire reason for existing is this one job, A2Z — our A2Z Typhoon Pro review goes into it properly.

What neither publishes

Both listings are quiet on warranty terms and operating temperature ranges, which read as “Not published” in the table above rather than being filled in with plausible figures. On a part in this price bracket we would like to see both, and if one of them starts publishing a warranty it would move our recommendation.

Which should you buy?

Buy the A2Z Typhoon Pro if you drive an 800V car, if you Supercharge frequently rather than occasionally, or if you simply want the part with the most margin on paper.

Buy the Lectron if you drive a 400V car (where the voltage difference is irrelevant), if the interlock is the specification you care about, or if you would rather buy from the brand with the longest consumer track record.

Buy neither until you have confirmed three things: that your car actually has a CCS1 port rather than a native NACS one, that your vehicle is enabled for non-Tesla Supercharger access, and that your automaker is not already supplying an adapter for your car. Ford, Rivian, Hyundai, Kia and others have run adapter programs on their own timelines, and a manufacturer-supplied unit is validated against your specific vehicle. Our per-vehicle pages for Ford, Rivian and BMW cover what to check.

And if what you actually want is AC

Both of these are DC parts for Supercharging. If you want to use a Tesla Wall Connector or a hotel Destination Charger with a non-Tesla EV, that is AC and needs a Tesla-to-J1772 adapter costing a fraction as much. Our AC vs DC guide explains why the two can never be the same part.