Samlex PST-3000-12
#15 in Over 2,000 WFull review
For RVs and boats that run an air conditioner or several appliances and need a listed install.
3.2/5
For buyers who want the biggest possible 12 V inverter for the money and can wire for 400+ A. Its ratings come only from the Amazon listing.
- 5,000 WContinuous
- 10,000 WSurge
- NoUL listed
- 1 yearWarranty
Check price at Amazon$461.69
Price checked October 24, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- 5000 W rating at a fraction of the price of name brands
- Four outlets plus a hardwire terminal
- Remote switch included
Cons
- A 5000 W load pulls over 400 A from a 12 V battery, which needs very heavy cabling
- No published idle draw or spec sheet, and no safety listing
- One-year warranty
The WZRELB SEVC family
Every WZRELB SEVC model we rank, smallest first. Ratings compare each against its own size.
| Model | Continuous | Rating | Price |
|---|---|---|---|
| WZRELB 1000W Pure Sine (SEVC) | 1,000 W | 3.2/5 | $91.81 |
| WZRELB 2000W Pure Sine (SEVC) | 2,000 W | 3.2/5 | $183.33 |
| WZRELB 3000W Pure Sine (SEVC) | 3,000 W | 3.3/5 | $209.60 |
| WZRELB 5000W Pure Sine (SEVC) (this one) | 5,000 W | 3.2/5 | $461.69 |
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 | SEVC5000W12VRC |
|---|---|
| Output | |
| Type | Pure sine wave inverter |
| Continuous power | 5,000 W |
| Surge power | 10,000 W |
| Peak efficiency | 90% |
| Connections | |
| AC outlets | 4 |
| Hardwire terminal | Yes |
| Transfer switch | No |
| Parallel units | No |
| Control and build | |
| Remote | Included |
| App | No |
| Display | Yes |
| Safety listing | No |
| Cooling | fan |
| Dimensions | 15.7 x 7.2 x 2.9 in |
| Weight | 9.2 lb |
| Warranty | 1 year |
Alternatives in this size
WZRELB 3000W Pure Sine (SEVC)
#16 in Over 2,000 WFull review
A rock-bottom 3000 W inverter for DIY builds that want a hardwire terminal. With no spec sheet or safety listing, it suits buyers who prize price over documentation.
Amazon $209.60$209.60
Xantrex Freedom X 3000
#18 in Over 2,000 WFull review
For RVs with a separate charger that need 3000 W for kitchen loads. It is listed, light and switches to shore power automatically, but has no built-in charger.
Amazon $1,045.72$1,045.72
Compare
Compare the WZRELB 5000W Pure Sine (SEVC) with any other 12V inverter →
More from WZRELB: every WZRELB product ranked.