Samlex PST-3000-48

Last updated: October 24, 2026

Samlex PST-3000-48
3.3/5#3 of 20 in over 1,500 W 48V inverters
3.3

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
See it at Samlex America

No store we check sells it online; the maker lists where to buy or who installs it.

Pros
  • 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
Cons
  • 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.

ModelContinuousRatingPrice
Samlex PST-600-48600 W3.1/5$348
Samlex PST-1500-481,500 W3.0/5$773.80
Samlex PST-2000-482,000 W3.5/5-
Samlex PST-3000-48 (this one)3,000 W3.3/5-

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 numberPST-3000-48
Output
TypePure sine wave inverter
AC output120 V
Continuous power3,000 W
Surge power6,000 W
DC input range42 to 60 V
Idle draw33.6 W (0.7 A at 48 V)
Peak efficiency90%
Connections
AC outlets2
GFCI outletsYes
Hardwire terminalYes
USB portsNone
Transfer switchNo
Parallel unitsNo
Control and build
RemoteOptional extra
AppNo
DisplayNo
Safety listingETL listed; conforms to UL 458 and CSA C22.2 No. 107.1
Coolingfan
Dimensions263 x 456.5 x 145 mm (10.4 x 18.0 x 5.7 in)
Weight21.6 lb
Warranty3 years

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