SIFWEX NACS-to-CCS1 EV Adapter, claimed 500A / 250kW

SIFWEX Charging Station Accessories is a NACS-to-CCS1 adapter listed for CCS1 EVs using compatible Tesla charging equipment. The listing claims up to 500A and 250kW, but those are stated maximums, not a guarantee of charging speed for a particular vehicle or charger.

At a glance

Listed as a NACS-to-CCS1 adapter for CCS1-compatible EVs at compatible Tesla charging equipment.
A mechanical lock is claimed to help secure the connection during charging.
The listing claims IP55 dust and water protection and a compact design for storage in a vehicle.

Price

$78.71Save 24%

Reference price: ~~$103.58~~

Price checked: Nov 14, 2026

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Pros and cons

Pros

The advertised 500A and 250kW ceilings give buyers stated maximums to compare with vehicle and charger limits.
A mechanical lock is described, which may be useful for maintaining a stable connection while charging.
The claimed IP55 rating is relevant for buyers considering outdoor use.

Cons

This is an adapter, not a home charging unit. The title explicitly says it does not work for home charging.

Technical specifications

9 specifications

Identity
Brand	SIFWEX
Model	Charging Station Accessories
Item model number	NACS-CCS1-T4

Charging and protection claims
Maximum current claimed	500A
Maximum charging power claimed	250kW
Ingress protection rating claimed	IP55
Safety standard testing claim	UL2252

Dimensions and installation
Weight listed	2.59 pounds
Package dimensions	8.25 x 6.25 x 3.5 inches

What to know before buying

Listing details to confirm

The listing names Tesla Supercharger V3, Destination, and Wall Connectors, while also describing 250kW fast charging. It does not clarify how the stated fast-charging maximum applies to each charger type, or identify supported vehicle models. Confirm vehicle and charger compatibility and actual charging limits before purchase. The SGS/UL2252 wording is a listing claim, not independently verified here.

Who is it for?

A good fit for

Drivers with a CCS1 EV seeking an adapter for compatible NACS/Tesla charging equipment.
Buyers who want a portable adapter to keep in a glove box or EV bag, as the listing suggests.

Less suited to

Anyone seeking equipment for home charging.
Drivers whose vehicle or intended charger has not been confirmed compatible with this adapter.

SIFWEX NACS-to-CCS1 EV Adapter, claimed 500A / 250kW · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.6 / 5 · 30 ratings

5 stars78%78%
4 stars10%10%
3 stars6%6%
2 stars6%6%
1 star0%0%

Aggregate ratings lean positive, with most ratings in the five-star category, but a smaller share are lower ratings. Without customer comments, the reasons for either reaction are unknown. These ratings do not establish vehicle compatibility or validate the advertised charging limits, so buyers should prioritize those checks.

Frequently asked questions

Does this adapter work for home charging?

The title explicitly says it does not work for home charging. It is presented for use with compatible Tesla charging equipment.

Will it deliver 250kW to my EV?

The listing claims up to 250kW and 500A. Actual charging capability depends on the vehicle and charging equipment, and the listing does not establish a specific vehicle's compatibility or charging rate.

Is compatibility confirmed for every CCS1 EV?

No specific vehicle models are identified. Check that your vehicle and intended charging equipment support this adapter before buying.

What weather protection is claimed?

The listing claims IP55 protection and describes the adapter as intended for indoor and outdoor use. These are listing claims, not independent verification.