Cotek SP-4000-148
#17 in Over 1,500 WFull review
A 4,000 W hardwired inverter for a 48 V off-grid panel feed, with good efficiency but a short warranty.
Amazon $1,316$1,316
2.2/5
For industrial or telecom 48 V systems that want a simple 2,000 W inverter with low idle draw; homes and RVs have better-listed options.
- 2,000 WContinuous
- 4,000 WSurge
- 120 VOutput
- 12 WIdle draw
- NoUL listed
- 1 yearWarranty
Check price at Toboa Energy$1,900
Price checked October 24, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Low idle draw for its size (12 W)
- Outlets plus a hardwire strip, so it can plug in or feed a circuit
- Simple, rugged design built for telecom and industrial use
Cons
- No UL 458 listing stated
- One-year warranty
- Loses 20% of its rating for every 10 C above 30 C
The Exeltech XP 48V family
Every Exeltech XP 48V model we rank, smallest first. Ratings compare each against its own size.
| Model | Continuous | Rating | Price |
|---|---|---|---|
| Exeltech XP-600 48V | 600 W | 2.2/5 | $693.99 |
| Exeltech XP-1100 48V | 1,100 W | 1.9/5 | $963 |
| Exeltech XPX-2000 48V (this one) | 2,000 W | 2.2/5 | $1,900 |
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 | XPX-1-4-6-1 |
|---|---|
| Output | |
| Type | Pure sine wave inverter |
| AC output | 120 V |
| Continuous power | 2,000 W |
| Surge power | 4,000 W |
| DC input range | 40.8 to 60 V |
| Idle draw | 12 W (0.2 A at 48 V) |
| Peak efficiency | 90% |
| Connections | |
| AC outlets | 2 |
| GFCI outlets | No |
| Hardwire terminal | Yes |
| USB ports | None |
| Transfer switch | No |
| Parallel units | No |
| Control and build | |
| Remote | No |
| App | No |
| Display | No |
| Safety listing | No |
| Cooling | fan |
| Dimensions | 4 x 9 x 18 in (102 x 229 x 457 mm) |
| Weight | 15 lb |
| Warranty | 1 year |
Alternatives in this size
Samlex PSR-2200-48
#18 in Over 1,500 WFull review
For telecom or network racks on a 48 V plant that need 2,200 W of clean AC with utility transfer, not for a cabin or RV.
Don Rowe $2,054.30 Solarflexion $2,054.30$2,054.30
Cotek SP-3000-148
#19 in Over 1,500 WFull review
A 3,000 W hardwired inverter for a 48 V off-grid panel feed, with good efficiency but a short warranty.
Amazon $1,113$1,113
Compare
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