HomeAmp ratings40 ATopband TB-AC240US
Topband TB-AC240US
Level 240 A at 240 V9.6 kW
Among the 76 Level 2 listings rated 40 A on the ENERGY STAR list, the Topband TB-AC240US has the lowest standby draw (0.72 W, about 6.3 kWh if left in standby all year) and the second-smallest share of its standby allowance in use (18 %). The next lowest standby draw belongs to the Pando Electric Pando 001 Smart Outlet: 0.75 W, 0.03 W away. Across all 424 Level 2 listings on the list, it also has the lowest standby draw, with no tie.
Unlike 79 % of its peers, it has no network connection.
Where it sits among the 76 listings rated 40 A
| Model name, as listed | TB-AC240US |
|---|---|
| Rating | Level 2: 40 A × 240 V = 9.6 kW |
| Cord | 17 ft, 8 AWG |
| Network | None listed |
| Standby | 0.72 W of the 4 W allowance (18 %); 6.3 kWh a year |
| Idle | 3.47 W of the 20 W allowance |
| Partial-on | 0.76 W |
| Certified | 2024-03-22 |
| Markets | United States, Canada |
| ENERGY STAR ID | 3423284 · Shenzhen Topband Co., Ltd |
Reported loss while charging
1.354 %at 4 A
0.389 %at 15 A
0.931 %at 30 A
0.958 %at full current
Lab-reported, no ENERGY STAR limit, not ranked here.