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300 Watt Pure Sine Wave Inverter: PST Series (120 VAC)

Samlex America Power Inverters

300 Watt Pure Sine Wave Inverter
PST Series (120 VAC)

Model: PST-300-12

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Safety listed.

This high efficiency DC-AC inverter converts 12 Volts DC to 300 Watts of pure sine-wave AC power at 120 Volts, 60 Hz. The unit comes with detachable cable with 12V plug adaptor and cable with battery clamps. Features include overload protection, low battery alarm / shut down, low idle power draw of less than 0.5 Amps. AC power is available from a NEMA-20R GFCI duplex outlet on the front panel. Safety certified to UL standards.

Product Manual
Samlex Specifications (EN)
Samlex Specifications (ES)

Design Features

  • High efficiency
  • Temperature controlled cooling fan – reduces energy consumption
  • Low interference Wide operating DC input range: 10.5 – 16.5 VDC / 21.0 – 33.0 VDC
  • LED indicators for power and protections
  • Low idle power draw
  • Dual GFCI protected AC outlets
  • Commercial grade design suitable for heavy duty loads, long periods of continuous operation & for emergency back up
  • UPC – Universal Protection Circuit: low voltage, over voltage, over temperature, over load and short circuit
  • Detachable cable with 12V plug adapter
  • Detachable cable with battery clamps
  • Safety certified to UL standards, FCC compliant


  • Service vehicles
  • Mobile Offices
  • Boats
  • Recreation Vehicles, Camping
  • Telecommunication
  • Field work / Construction sites
  • Solar power systems
  • Emergency backup power
  • Home electronics: TV, VCR, video games
  • Computers, printers


Input 12 VDC
Output 120 VAC
Watts 300
Surge 500 Watts
Outlets 2
Weight 3.46 (lbs)
Weight 1.57 (kg)
Dimensions 9.69 x 5.76 x 2.58 (in)
Dimensions 246 x 146.3 x 65.5 (mm)
Safet ETL to UL
Standard Warranty 2 Years