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
3.4/5
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.
- 3,000 WContinuous
- 6,000 WSurge
- 2.5 AIdle draw
- YesUL listed
- 1 yearWarranty
Check price at Amazon$414.99
Price checked October 24, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Runs a microwave, coffee maker and fridge at once
- GFCI outlets plus a hardwire terminal for an RV panel
- ETL listed to UL 458 and CSA 107.1
- Wired remote switch included
Cons
- Draws up to 2.5 A at idle, so switch it off when not in use
- No screen or app, just LED indicators
- Only a 1-year warranty
The Renogy P2 family
Every Renogy P2 model we rank, smallest first. Ratings compare each against its own size.
| Model | Continuous | Rating | Price |
|---|---|---|---|
| Renogy P2 700W Pure Sine | 700 W | 3.4/5 | $139.99 |
| Renogy P2 1000W Pure Sine | 1,000 W | 3.4/5 | $175.99 |
| Renogy P2 2000W Pure Sine | 2,000 W | 3.3/5 | $285.99 |
| Renogy P2 3000W Pure Sine (this one) | 3,000 W | 3.4/5 | $414.99 |
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 | RNG-INVT-3000-12V-P2-US |
|---|---|
| Output | |
| Type | Pure sine wave inverter |
| Continuous power | 3,000 W |
| Surge power | 6,000 W |
| DC input range | 10.5 to 16.5 V |
| Idle draw | 2.5 A (30 W) |
| Peak efficiency | 90% |
| Connections | |
| AC outlets | 3 |
| GFCI outlets | Yes |
| Hardwire terminal | Yes |
| USB ports | 1 |
| Transfer switch | No |
| Parallel units | No |
| Control and build | |
| Remote | Included |
| App | No |
| Display | No |
| Safety listing | ETL listed to UL 458 and CSA C22.2 No. 107.1-01 |
| Cooling | fan |
| Dimensions | 18.9 x 9 x 4 in |
| Weight | 12.5 lb |
| Warranty | 1 year |
Alternatives in this size
Go Power! SSW-3000-12-HW
#9 in Over 2,000 WFull review
For RVs building around Go Power’s PowerTrak system that want an efficient 3000 W inverter with very low powersave draw.
Amazon $759.16$759.16
LiTime 3000W 12V Pure Sine
#11 in Over 2,000 WFull review
A low-cost 3000 W inverter for running big kitchen appliances or tools from a large LiFePO4 bank. It suits DIY off-grid setups more than RVs that need a listed, hardwired unit.
Amazon $309.99$309.99
Compare
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