For a 48 V cabin or shop that needs a UL-listed 2,000 W inverter with outlets and a hardwire terminal.

A UL-listed 3,000 W inverter for 48 V off-grid systems with motor loads, at a premium price.
- 3,000 WContinuous
- 6,000 WSurge
- 120 VOutput
- 33.6 WIdle draw
- YesUL listed
- 3 yearsWarranty
No store we check sells it online; the maker lists where to buy or who installs it.
- ETL listed to UL 458, which inspectors and insurers look for
- GFCI outlets plus a hardwire terminal for a subpanel
- Holds 6,000 W surge for motor starts
- Three-year warranty from a long-standing US brand
- No power-saving draw published, so plan on the full idle draw
- Idle draw of about 34 W runs all day if left on
- Remote panel costs extra
The Samlex PST 48V family
Every Samlex PST 48V model we rank, smallest first. Ratings compare each against its own size.
| Model | Continuous | Rating | Price |
|---|---|---|---|
| Samlex PST-600-48 | 600 W | 3.1/5 | $348 |
| Samlex PST-1500-48 | 1,500 W | 3.0/5 | $773.80 |
| Samlex PST-2000-48 | 2,000 W | 3.5/5 | - |
| Samlex PST-3000-48 (this one) | 3,000 W | 3.3/5 | - |
How it scores
The rating comes from 6 measured or published factors, each scored 0-100 against fixed reference points for its size. How we rank explains each one.
Specifications
| Model number | PST-3000-48 |
|---|---|
| Output | |
| Type | Pure sine wave inverter |
| AC output | 120 V |
| Continuous power | 3,000 W |
| Surge power | 6,000 W |
| DC input range | 42 to 60 V |
| Idle draw | 33.6 W (0.7 A at 48 V) |
| Peak efficiency | 90% |
| Connections | |
| AC outlets | 2 |
| GFCI outlets | Yes |
| Hardwire terminal | Yes |
| USB ports | None |
| Transfer switch | No |
| Parallel units | No |
| Control and build | |
| Remote | Optional extra |
| App | No |
| Display | No |
| Safety listing | ETL listed; conforms to UL 458 and CSA C22.2 No. 107.1 |
| Cooling | fan |
| Dimensions | 263 x 456.5 x 145 mm (10.4 x 18.0 x 5.7 in) |
| Weight | 21.6 lb |
| Warranty | 3 years |
Alternatives in this size
A budget 2,000 W inverter for a small 48 V cabin or golf-cart build that wants app monitoring. Expect little documentation.
Amazon $166A cheap split-phase inverter for a cabin or shop that needs some 240 V. Buy it for the price, not the paperwork.
Amazon $493.05Compare
Compare the Samlex PST-3000-48 with any other 48V inverter →
More from Samlex America: every Samlex America product ranked.