The JT08 and JT09 spec sheet is a short list of ceilings and one sealing rating: both adapters are rated up to 500 A in the 250 kW class with IP66 sealing, and the JT08 adds up to 1000 V. Just as important is what the sheet does not contain — no contact material, no protection devices, no named certification — because an unstated line is a question to ask in writing, not a feature to assume.
Key Takeaways
- Stated: up to 500 A and the 250 kW class for both models, up to 1000 V for the JT08, IP66 for both.
- Materials are not stated for either adapter — a written-confirmation item, never a line borrowed from another model.
- IP66 is enclosure sealing, not an electrical protection list; no protection device or certification is named in the listings.
- Ratings never override the two conditions: maker approval for your car, and a station open to it.
The Lines That Are Stated
| Spec line | JT08 | JT09 | What it means for you |
|---|---|---|---|
| Current ceiling | Up to 500 A | Up to 500 A | The most the adapter is built to carry; station and car settle the session below it. |
| Voltage ceiling | Up to 1000 V | Not stated | Do not assume the pair matches on this line — ask for the JT09’s figure in writing. |
| Power class | 250 kW class | 250 kW class | The family figure paired with the current ceiling — a rating, not a promised speed. |
| Sealing | IP66 | IP66 | Dust-tight; resists powerful water jets. Enclosure sealing, not an electrical feature. |
| Form | No handle | Handle | A handling difference only — no rating, no permission changes. |
Every figure there is a ceiling, not a command: the adapter passes through the session the station offers and your car accepts, its ratings sitting above that agreement. Buy against ceilings, never against a promised session.
Materials: A Line This Sheet Does Not Have
This guide’s title promises materials, so here is the honest position: neither listing states a contact material, a plating or a housing material. That absence matters at 500 A: every amp of a session crosses the adapter’s contact faces, and their material shapes how the joint carries current and ages. A real question — just not one this sheet answers.
Do not fill the gap from a neighbouring product: EVDANCE’s JT02 listing names silver-plated copper contacts, but that line belongs to the JT02 and transfers nowhere. For a fleet or resale order it belongs on the written-confirmation list, next to the JT09’s voltage figure.
Protections: IP66 Is Sealing, Not a Protection List
IP66 is the only line that sounds like protection. It is a rating of the enclosure against dust and water ingress, as our IP ratings comparison sets out — and it says nothing about electrical protection. Neither listing names an isolation system, a monitoring function, a protective device or a certification mark — none is promoted here from silence into a feature.
The protections section of this sheet is therefore a list of questions to put to the manufacturer in writing:
- The contact material and plating on both models.
- The JT09’s voltage ceiling, to sit next to the JT08’s stated 1000 V.
- Certification or test documentation — as documents to see, not marks to assume.
- Any protection or monitoring function the maker does state, in the maker’s own words.
The JT08 and JT09, as Listed
The EVDANCE JT08 (handleless, up to 500 A / 1000 V, IP66) and the EVDANCE JT09 (with handle, up to 500 A, IP66) are NACS-to-CCS1 DC adapters: they let a car with a CCS1 inlet charge at a NACS DC station, including Tesla Superchargers that are open to that car. Both carry the same two conditions of use, which no rating overrides: your vehicle maker must approve third-party DC adapter use for your car, checked in the maker’s current documents, and the station or network must be open to your car under its current terms. The wider checklist for judging any adapter is in our guide to whether EV charging adapters are safe.
Frequently Asked Questions
What material are the JT08 and JT09 contacts made from?
The listings do not state one. Ask in writing — and do not borrow another model’s line: the JT02’s stated silver-plated copper contacts describe the JT02 only.
Is IP66 a safety certification?
No. IP66 rates the enclosure against dust and water. Certification is a separate line, awarded by a recognised testing laboratory, and neither listing names one — treat it as a documents request, not a feature.
Does the JT09 share the JT08’s 1000 V rating?
Not stated for the JT09 — do not assume symmetry. Its stated lines are up to 500 A and IP66; if the ceiling matters for your cars, get the figure in writing.
Related Reading
- Are EV Charging Adapters Safe?
- IP Ratings for EV Chargers: IP54, IP65 and IP66 Compared
- Is the Tesla Charger NACS? NACS, J3400 and Adapters Explained
- How Do DC Fast Chargers Work?
