The original Universal Mobile Connector UMC / MC240 is a major step up from the 120 VAC, 15 A yellow cable—supporting up to 40 A charging from split-phase 240/208 VAC outlets for much faster turnaround.
| Parameter | Detail |
|---|---|
| Input Voltage | Split-phase 240/208 VAC |
| Max Current | Up to 40 A (vehicle/EVSE dependent) |
| Original Cable | UMC / MC240 (Roadster) |
| Upgrade Path | Tesla Level 2 NACS cable (≈40 A equivalent charge rate) |
When the issue is confined to plugs, receptacles, or the Roadster charge head, we replace the affected parts and pre-tin all stranded conductor terminations inside the plug/sockets for a tighter, longer-lasting connection.
If the sealed mid-cable contactor/electronics have failed, we retrofit a brand new Tesla-branded Level 2 NACS charge cable that delivers the same 40 A charge rate replacing the failed old UMC 240 Charge Cable with updated electronics.
Our engineers replace the NACS charge plug, with the original Roadster proprietary and out of production Type 1 Roadster Charge plug, to the brand new Level 2 NACS 240 VAC charging cable, replicating the best of new and old technology. To protect collector value and maintain OEM integrity, we use only authentic Tesla branded Level 2 cables—not aftermarket substitutes.
To schedule a UMC (MC240) repair or upgrade, call 623-433-8500.
