Auxus UCS-Z21-48S-FT
Auxus UCS-Z21-48S-FT is a Level 2 home EV charger from Auxus with up to 48 A (11.52 kW) output and a J1772 connector — 40 ft cable, networked smart charging.
Our take
The strongest spec sheet of Auxus’s three 40 ft-cable entries: class-maximum reach — no certified 48 A charger we index ships longer — combined with a 2.21 W idle draw in the most efficient quarter of the 91-unit cohort. It is networked like 88 percent of its class, delivers 11.5 kW on a 60 A circuit for about 41 miles of range per hour, and carries the standard 48 A caveat that only 3 of the 29 EVs in our list accept the full rate. Between this and the near-identical DP variant, the numbers barely separate them — pick on price.
- Best for: The longest reach in the class without an idle-draw penalty.
- Trade-off: Full 11.5 kW output is usable by very few current EVs.
| Connector type | J1772 |
|---|---|
| Max output current | 48 A |
| Max output power | 11.52 kW |
| Input voltage | 240 V |
| Wi-Fi / app connected | Yes |
|---|
| Cable length | 40 ft |
|---|
| ENERGY STAR certified | Yes |
|---|
| Standby power draw | 2.21 W |
|---|
How fast does the Auxus UCS-Z21-48S-FT charge?
Real charging speed is the lower of the charger's 11.52 kW output and each vehicle's onboard AC limit. Full-charge times and range added per hour on the Auxus UCS-Z21-48S-FT:
| Vehicle | Real rate | 0–100% | Range/hr |
|---|---|---|---|
| Tesla Model Y | 11.5 kW | 6.5 h | 50 mi |
| Tesla Model 3 | 11.5 kW | 6.5 h | 56 mi |
| Ford Mustang Mach-E | 10.5 kW | 8.7 h | 37 mi |
| Chevrolet Equinox EV | 11.5 kW | 7.4 h | 43 mi |
| Hyundai Ioniq 5 | 10.9 kW | 7.7 h | 41 mi |
| Ford F-150 Lightning | 11.52 kW | 11.4 h | 28 mi |
EV compatibility
The Auxus UCS-Z21-48S-FT's J1772 connector plugs directly into 23 of the 29 EVs tracked in this database. The other 6 (Hyundai Ioniq 5, Tesla Cybertruck, Tesla Model 3, Tesla Model S, Tesla Model X, Tesla Model Y) work with it too — requires a J1772-to-NACS adapter (Tesla includes one with its vehicles).
Unsure which port your car has? See J1772 vs NACS for home charging.
Similar chargers
- RENOVA R-EVC/A48D (48 A)
- LONGSUN EVC-WB50 (48 A)
- LITE-ON Technology Corporation W1-UC168-00B1F0 (48 A)
- DynaChrg JNT-EVM002 (48 A)
- MSI MS-C802 48A (48 A)
- Deltran Battery Tender 022-3019-XX-XX (48 A)
Frequently asked questions
Is the Auxus UCS-Z21-48S-FT ENERGY STAR certified?
Yes, the Auxus UCS-Z21-48S-FT is ENERGY STAR certified for standby energy efficiency.
Does the Auxus UCS-Z21-48S-FT have Wi-Fi or app control?
Yes, the Auxus UCS-Z21-48S-FT is a networked charger with smart-charging connectivity.
What size breaker does the Auxus UCS-Z21-48S-FT need?
At its maximum 48 A output the Auxus UCS-Z21-48S-FT needs at least a 60 A circuit, per the NEC rule that continuous loads may use only 80% of breaker capacity.
Sources
- data.energystar.gov (retrieved 2026-08-17)