The Victron Phoenix 48/1200 is the better 48V inverter overall, rated 4.1 to 2.1. The Victron Phoenix 48/1200 leads on value, safety listing and warranty. The Samlex PSR-1200-48 wins on features. The Victron Phoenix 48/1200 costs $1,000.04 less ($298.36 vs $1,298.40).
For a 48 V cabin, van or boat that wants a coffee maker or small microwave on a plug-in inverter. Efficient and well protected for its size.
DRSA $328.95 Northern Arizona Wind & Sun $298.36For telecom or network racks on a 48 V plant that need 1,200 W of clean AC with utility transfer, not for a cabin or RV.
Don Rowe $1,298.40 Solarflexion $1,298.40Prices 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.
Each factor is scored 0-100 against the same fixed reference points for every up to 1,500 W 48V inverter; a clear win is highlighted. How we rank explains each one.
| Factor weight | Victron Phoenix 48/1200 | Samlex PSR-1200-48 |
|---|---|---|
| Overall rating | 4.1/5 | 2.1/5 |
| Value 30% | 75 $0.25 per continuous watt | 0 $1.08 per continuous watt |
| Idle draw 15% | 75 12 W idle with nothing plugged in | 25 24 W idle with nothing plugged in |
| Safety listing 15% | 100 LabTest certified to UL 458 (certificate LC20760-1) | 0 no UL 458 or UL 1741 listing stated |
| Warranty 15% | 100 5-year warranty | 25 2-year warranty |
| Features 15% | 20 optional remote, app add-on; no hardwire terminal | 30 transfer switch, display; no remote |
| Efficiency 10% | 78 92% peak efficiency (maker rating) | 56 90% peak efficiency (maker rating) |
| Victron Phoenix 48/1200 | Samlex PSR-1200-48 | |
|---|---|---|
| Output | ||
| Type | Pure sine wave inverter | Pure sine wave inverter |
| AC output | 120 V | 120 V |
| Continuous power | 1,200 W | 1,200 W |
| Surge power | 1,600 W for 15 s | 2,000 W |
| DC input range | 36.8 to 62 V | 40 to 60 V |
| Idle draw | 12 W (0.2 A at 48 V) | 24 W (0.5 A at 48 V) |
| Power-saving draw | 3 W | - |
| Peak efficiency | 92% | 90% |
| Connections | ||
| AC outlets | 2 | 2 |
| GFCI outlets | Yes | No |
| Hardwire terminal | No | No |
| USB ports | None | None |
| Transfer switch | No | Yes |
| Pass-through rating | - | 16 A |
| Parallel units | No | No |
| Control and build | ||
| Remote | Optional extra | No |
| App | Optional add-on | No |
| Display | No | Yes |
| Safety listing | LabTest certified to UL 458 (certificate LC20760-1) | No |
| Design | - | High-frequency |
| Cooling | fan | load-controlled fan |
| Dimensions | 117 x 231 x 333 mm (4.6 x 9.1 x 13.1 in) | 482 x 386.8 x 44 mm (19 x 15.2 x 1.7 in), 1U |
| Weight | 15 lb | 12.8 lb |
| Warranty | 5 years | 2 years |
