A UL-listed 3 kW 24 V inverter for RVs and small cabins with 12 V-style panels. Pick the SPH302480A for long high-voltage strings.
Amazon SunGoldPower $445The SunGoldPower SPH302460A is the better hybrid solar inverter overall, rated 2.9 to 2.7. The SunGoldPower SPH302460A leads on value. The Rich Solar NOVA MAX 3K wins on solar input and warranty. The SunGoldPower SPH302460A costs $354.99 less ($445 vs $799.99).
For RV and van owners on a 24 V battery who want a US-supported all-in-one. Cheaper 24 V units take more solar for less money.
Amazon Rich Solar $799.99Prices were last checked October 23, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the SunGoldPower SPH302460A for value ($148 per kW of continuous output vs $267 per kW of continuous output).
- Choose the Rich Solar NOVA MAX 3K for solar input (3,000 W of panels, 250 V max, 1 MPPT vs 1,600 W of panels, 108 V max, 1 MPPT) and warranty (3-year warranty vs 1-year warranty).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every 120 V hybrid solar inverter; a clear win is highlighted. How we rank explains each one.
| Factor weight | SunGoldPower SPH302460A | Rich Solar NOVA MAX 3K |
|---|---|---|
| Overall rating | 2.9/5 | 2.7/5 |
| Value 30% | 84 $148 per kW of continuous output | 44 $267 per kW of continuous output |
| Solar input 20% | 0 1,600 W of panels, 108 V max, 1 MPPT | 17 3,000 W of panels, 250 V max, 1 MPPT |
| Efficiency 20% | 38 92% peak efficiency | 32 91% peak efficiency |
| Features 15% | 50 UL 1741 listed, Wi-Fi add-on, battery communication; no parallel | 50 Wi-Fi app, parallel stacking, battery communication; not UL 1741 listed |
| Warranty 15% | 0 1-year warranty | 22 3-year warranty |
Specifications
| SunGoldPower SPH302460A | Rich Solar NOVA MAX 3K | |
|---|---|---|
| Output | ||
| Output voltage | 120 V single-phase | 120 V single-phase |
| Continuous output | 3,000 W | 3,000 W |
| Surge | 6,000 W | 6,000 W |
| Peak efficiency | 92% | 91% |
| Transfer time | 10 ms | 10 ms |
| Parallel units | No | Up to 9 units |
| Solar | ||
| Max PV power | 1,600 W | 3,000 W |
| Max PV voltage (Voc) | 108 V | 250 V |
| MPPT range | 30 to 90 V | 90 to 230 V |
| MPPT trackers | 1 | 1 |
| PV current per tracker | 40 A | 22 A |
| Battery and grid | ||
| Battery voltage | 24 V | 24 V |
| Battery types | Lithium, lead-acid | Lithium, AGM, gel, flooded |
| Max charge current | 100 A | 80 A |
| AC charge current | 40 A | 80 A |
| Battery communication | Yes | Yes |
| Grid sell-back | No | No |
| Generator input | No | - |
| UL 1741 | Yes | No |
| Build | ||
| App monitoring | Optional add-on | Included |
| Dimensions | 378 x 280 x 103 mm | 5.6 x 12.1 x 18.8 in |
| Weight | 15 lb | 26.5 lb |
| Warranty | 1 year | 3 years |
| Released | 2025-07 | - |
