Samlex NTX-3000S-12
#7 in Over 2,000 WFull review
For cabins and work trucks that want a listed 3,000 W inverter with plain household outlets.
Amazon $732.40$732.40
3.4/5
For RVs building around Go Power’s PowerTrak system that want an efficient 3000 W inverter with very low powersave draw.
- 3,000 WContinuous
- 6,000 WSurge
- 1.6 AIdle draw
- YesUL listed
- 2 yearsWarranty
Check price at Amazon$759.16
Price checked October 24, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Hardwires into an RV subpanel
- Under 0.2 A in powersave, so it can stay on all day
- Over 93% efficient at typical loads
- RV-C port joins a PowerTrak or RV-C network
Cons
- Settings need the PowerTrak screen, sold separately
- Two-year warranty
The Go Power! SSW family
Every Go Power! SSW model we rank, smallest first. Ratings compare each against its own size.
| Model | Continuous | Rating | Price |
|---|---|---|---|
| Go Power! SSW-1500-12 | 1,500 W | 3.4/5 | $455.97 |
| Go Power! SSW-1800-12-HW | 1,800 W | 3.4/5 | $552.93 |
| Go Power! SSW-2000-12 | 2,000 W | 3.4/5 | $495.99 |
| Go Power! SSW-2000-12-HW | 2,000 W | 3.4/5 | - |
| Go Power! SSW-3000-12-HW (this one) | 3,000 W | 3.4/5 | $759.16 |
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 | SSW-3000-12-HW |
|---|---|
| Output | |
| Type | Pure sine wave inverter |
| Continuous power | 3,000 W |
| Surge power | 6,000 W for 2 s |
| DC input range | 10.8 to 16 V |
| Idle draw | 1.6 A (19.2 W) |
| Power-saving draw | 0.2 A |
| Peak efficiency | 93% |
| Connections | |
| AC outlets | 0 |
| GFCI outlets | No |
| Hardwire terminal | Yes |
| USB ports | None |
| Transfer switch | No |
| Parallel units | No |
| Control and build | |
| Remote | Optional extra |
| App | No |
| Display | No |
| Safety listing | UL Listed (product page); UL 458 mark on the spec sheet |
| Dimensions | 478.5 x 269 x 130 mm (18.8 x 10.6 x 5.1 in) |
| Weight | 23.9 lb |
| Warranty | 2 years |
Alternatives in this size
Samlex NTX-3000-12
#8 in Over 2,000 WFull review
For RVs that want to feed the whole coach panel through a 30 A cord from a listed inverter.
Amazon $741.97$741.97
Renogy P2 3000W Pure Sine
#10 in Over 2,000 WFull review
A 3000 W inverter for RVs and cabins that need to run big kitchen loads and want a real UL 458 listing. Switch it off between uses, since its idle draw is high.
Amazon $414.99$414.99
Compare
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