Devil's in the details. You need it for over 150 volts to ground. A split phase 240v is always 120v to ground. If this were being wired to a 277/480v circuit (which the gen 3 wall connector doesn't even support), then a disconnect would be required.I believe the disconnect is required for over 60 amps OR over 150 Volts. (This is 240 Volts of course). My breaker panel is not in the garage.
Thanks for the ChargePoint tip....I was actually one of the first to purchase the replacement NACS cable. . (The images from this thread are from the initial installation, at which time there was no NACS cable available or even announced.)