Samlex PST-300-12 300 watt pure sine wave inverter 12V
PST-300-12 front panel with GFCI duplex outlets
PST-300-12 rear panel with DC terminals and fan
Included battery clamp and 12V plug adapter cables for the PST-300-12
Top view of the Samlex PST-300-12 compact inverter
Samlex PST-300-12 300 watt pure sine wave inverter 12V
PST-300-12 front panel with GFCI duplex outlets
PST-300-12 rear panel with DC terminals and fan
Included battery clamp and 12V plug adapter cables for the PST-300-12
Top view of the Samlex PST-300-12 compact inverter

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Samlex PST-300-12 300 Watt Pure Sine Wave Inverter, 12V, Battery Clamps + 12V Plug Included

$342.10
$274.00
(You save $68.10 )
SKU: PST-300-12
Availability: Usually ships in 24 hours
Shipping: Free shipping on orders $75 and up
Input Voltage: 12 VDC
Output: 120 VAC Pure Sine Wave
Continuous Power: 300 W
Surge Power: 500 W
AC Outlets: NEMA 5-20R GFCI Duplex
Included Cables: Battery Clamps + 12V Plug Adapter
Samlex PST-300-12 300 Watt Pure Sine Wave Inverter, 12V, Battery Clamps + 12V Plug Included

Samlex PST-300-12 300 Watt Pure Sine Wave Inverter, 12V, Battery Clamps + 12V Plug Included

$342.10
$274.00
(You save $68.10 )
Adding to cart… The item has been added
Description  

Samlex PST-300-12 - 300W Pure Sine Wave Inverter, 12V, Cables Included

The most-used inverter in a truck is often the smallest one, because it is the one that is always there. The Samlex PST-300-12 is a 300 watt pure sine wave inverter that works straight out of the box: clamp the included cable to a battery, or plug the included adapter into a 12V socket, and its GFCI-protected duplex outlet serves 120VAC clean enough for laptops and camera gear. At 3.46 pounds and the size of a hardcover book, it rides in a toolbox or seat pocket until needed.

Warranty

Warranty. Samlex America warrants the PST-300-12 for 3 years. Full terms are confirmed in writing with your quote.

Ready Out of the Box

Both cables included
A battery-clamp cable for full output and a 12V plug-adapter cable for the dashboard socket, both detachable. No trip back for hardware.
GFCI at 300 watts
The duplex outlet carries ground-fault protection, so the safety story does not shrink with the wattage.
Light and cool
87% peak efficiency, under half an amp of idle draw, and a fan that stays off until the internal temperature actually calls for it.
  • True sine wave AC, under 3% distortion, regulated to 120 VAC within 3 percent.
  • Universal Protection Circuit: low and high voltage, overload, short circuit and over-temperature shutdowns, with LED status indicators.
  • Remote input - switch it from an ignition or external on/off switch in fixed installs.
  • ETL listed to UL 458 and CSA C22.2 No. 107.1; FCC Part 15(B) Class B.

Technical Specifications

Samlex PST-300-12 Specifications
Part NumberPST-300-12 (also searched as PST 300 12, PST300-12, PST 300)
Output WaveformPure sine wave, under 3% THD
Continuous Power300 W
Surge Power500 W (under 8 ms)
Maximum Output Current2.54 A
AC Output120 VAC ±3%, 60 Hz ±1%; NEMA 5-20R GFCI duplex receptacle
DC Input Voltage12 VDC nominal, 10.5 - 16.5 VDC operating range
DC Input Current40 A maximum; under 500 mA at no load
DC CablesDetachable battery-clamp cable and 12V plug-adapter cable, both included
Peak Efficiency87%
ProtectionsLow voltage alarm 10.5 V, shutdown 10.0 V; high voltage shutdown 16.5 V; overload, short circuit, over-temperature (auto reset); ground fault on GFCI outlets; reverse polarity (internal fuse)
Remote ControlRemote on/off input (ignition or external switch)
CoolingTemperature-controlled fan
Operating Temperature-4°F to 104°F (-20°C to 40°C)
Dimensions6.1 x 9.69 x 2.58 inches (155 x 246 x 65.5 mm)
Weight3.46 lbs (1.57 kg)
StandardsETL listed to UL 458 and CSA C22.2 No. 107.1; FCC Part 15(B) Class B
Warranty3 years (Samlex America)
Technical Documentation
PST-300-12 Product Manual (PDF) · PST-300-12 Specification Sheet (PDF)

Where This Inverter Is Used

  • Trucks, vans and daily drivers - laptop and charger power wherever the vehicle is parked.
  • Camping and boating - small electronics on clean AC without wiring anything.
  • Field technicians and photographers - test gear and battery chargers between sites.
  • Emergency kits - phones, radios and a laptop through an outage.

Ordering

Nothing extra to buy. Cables ship in the box, so one order covers the whole setup. If your loads have crept past small electronics, step to the PST-600-12 before this one spends its life in overload shutdown. Bulk orders for crews or kits: written quote in 24 to 48 hours with quantity and ZIP.

Frequently Asked Questions

What is included with the PST-300-12?

Two detachable DC cables come in the box: one with battery clamps and one with a 12V plug adapter. Nothing else is needed to start using it; there is no separate install kit for this model.

Can I run it from a vehicle accessory socket?

Yes, with the included plug-adapter cable, for light loads. Vehicle accessory sockets are commonly fused around 10 to 15 amps, so anything approaching the inverter's full 300 watts should use the battery-clamp cable straight to the battery instead.

What runs on 300 watts?

A laptop and monitor together, a TV, camera and tool-battery chargers, CPAP machines and other small electronics, up to 2.54 amps of AC output. A 500 watt momentary surge covers power-brick inrush; anything with a heating element or compressor belongs on a bigger inverter.

Why pay for pure sine wave in a small inverter?

Because small electronics are the loads most sensitive to waveform. On cheap modified sine units, AC adapters buzz, run hot and age early; this inverter's sine output, under 3% distortion at 87% peak efficiency, is the same shape your gear was designed around at home.

The small inverter worth keeping in every vehicle.

Order online, or send your quantity and delivery ZIP and a battery specialist will confirm pricing and lead time in writing, with no obligation to buy.

Call 1-877-775-4381  ·  battery specialists, not a call center

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov (State of California only).

Warranty Information  
3 Year Limited Warranty (Samlex America)
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