The Victron Quattro 48/3000 120V rates 3.5 among 120V inverter-chargers 48V inverters; the Samlex PSR-2200-48 rates 2.3 among over 1,500 W ones. The Victron Quattro 48/3000 120V costs $743.60 less ($1,310.70 vs $2,054.30).
For a 48 V cabin or boat that needs two AC inputs, such as grid plus generator, in a 3 kVA size. Buyers with one AC source get lower idle draw and UL listings from the MultiPlus-II 48/3000.
Backwoods Solar $1,310.70For telecom or network racks on a 48 V plant that need 2,200 W of clean AC with utility transfer, not for a cabin or RV.
Don Rowe $2,054.30 Solarflexion $2,054.30Prices were last checked October 24, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
These two sit in different size classes (120V inverter-chargers and over 1,500 W), and each is scored against the reference points for its own class, so a rating says how well each does among its own size peers. How we rank explains each factor.
| Factor weight | Victron Quattro 48/3000 120V | Samlex PSR-2200-48 |
|---|---|---|
| Overall rating | 3.5/5 | 2.3/5 |
| Value 30% | 39 $0.55 per continuous watt | 0 $0.93 per continuous watt |
| Idle draw 15% | 79 25 W idle with nothing plugged in | 41 33.6 W idle with nothing plugged in |
| Safety listing 15% | 0 no UL 458 or UL 1741 listing stated | 0 no UL 458 or UL 1741 listing stated |
| Warranty 15% | 100 5-year warranty | 25 2-year warranty |
| Features 15% | 50 optional remote, app add-on, lithium charge profile, hardwire terminal | 30 transfer switch, display; no remote |
| Efficiency 10% | 100 94% peak efficiency (maker rating) | 78 92% peak efficiency (maker rating) |
| Victron Quattro 48/3000 120V | Samlex PSR-2200-48 | |
|---|---|---|
| Output | ||
| Type | Pure sine wave inverter-charger | Pure sine wave inverter |
| AC output | 120 V | 120 V |
| Continuous power | 2,400 W | 2,200 W |
| Surge power | 6,000 W | 4,000 W |
| DC input range | 38 to 66 V | 40 to 60 V |
| Idle draw | 25 W (0.5 A at 48 V) | 33.6 W (0.7 A at 48 V) |
| Power-saving draw | 12 W | - |
| Peak efficiency | 94% | 92% |
| Connections | ||
| AC outlets | 0 | 2 |
| GFCI outlets | No | No |
| Hardwire terminal | Yes | No |
| USB ports | None | None |
| Transfer switch | Yes | Yes |
| Pass-through rating | 50 A | 30 A |
| Charger | 35 A | - |
| Lithium charge profile | Yes | - |
| Parallel units | Yes | No |
| Control and build | ||
| Remote | Optional extra | No |
| App | Optional add-on | No |
| Display | No | Yes |
| Safety listing | No | No |
| Design | - | High-frequency |
| Cooling | fan | load-controlled fan |
| Dimensions | 362 x 258 x 218 mm (14.3 x 10.2 x 8.6 in) | 482 x 410 x 87.7 mm (19 x 16.1 x 3.5 in), 2U |
| Weight | 42 lb | 23.1 lb |
| Warranty | 5 years | 2 years |
