Keith Smith
Active Member
Keith Smith said:
You have re-phrased my comment to be inflammatory. If you want to give reasons why you think CCS2 is superior to NACS please do.
I posted "Some day, rather like the move to USB type C charging for mobile phones and laptops, CCS type 2 may prevail for EVs, as it does already in many places internationally, even for Teslas."
From outside of North America we see the strong arguments being made for NACS vs CCS type1. In many other places Teslas use CCS type 2. The 3 phase argument puzzles me since I operate on single phase happily. It probably helps that domestic power is 230V. My point is not that one is better, (think Beta vs VHS), just that some day there may be a standard that prevails and it may be CCS 2, and we won't be agonising over it.
J3400 is replacing CCS. CCS is a J1772 socket with 2 sockets for single phase AC and two larger DC pins bolted on the bottom. In europe they decided on IEC62196 a slightly larger socket than J1772 with 4 pins allowing for for a 3-phase AC connection. You don't have to use 3-phase it simply allowed for it. CCS2 took the IEC 62196 and bolted two larger DC pins on the bottom. In both cases this was simply to extend the existing connector to allow for DC charging. Tesla was forced to adopt CCS2 by the EU regulations, or they couldn't sell cars there.
As you say CCS2 or more accurately the IEC 62196 portion of CCS2 used for home/ac charging works fine with single-phase which is irrelevant. In my opinion J3400 is superior, 2-wires, smaller easier to handle plug with shared AC/DC pins. The only advantage I see for CCS2 over J3400 is the ability (not the requirement) to use 3-phase AC. J3400 does not support 3-phase, but my argument is that doesn't matter because it's simple enough to simply create a 3-phase AC-DC converter if you happen to have it, and this will get less expensive over time. Thus I stand by my post that EU mandates will perhaps leave Europe stuck with the drastically bulkier and harder to handle CCS2 connector for a longer time than necessary which I think will turn out to be stupid. OTOH if you see some other advantage besides the 3-phase capability of CCS2, that would make make a transition from a bulky connector to a more elegant one any different then I am happy to listen.
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