Samlex Inverter 300 Watts 12V DC Pure Sine Wave 120VAC PST-300-12

Samlex Inverter 300 Watts 12V DC Pure Sine Wave 120VAC PST-300-12

Regular price $237.35
LESS THAN 50
Leave a Review

Samlex Inverter 300 Watts 12V DC Pure Sine Wave 120VAC PST-300-12

Samlex Inverter 300 Watts 12V DC Pure Sine Wave 120VAC PST-300-12

Available
MPN No: PST-300-12
Regular price $237.35

1
2
3
4
5
6

Shipping calculated at checkout. About shipping

delivery icon
Expected ship date Jul 13 - 20

Ships from U.S. Warehouse

Trusted by Thousands

Expert U.S. Support

delivery icon

We offer multiple secure payment options for your convenience

American Express Apple Pay Diners Club Discover Google Pay JCB Mastercard PayPal Venmo Visa
delivery icon

We offer multiple secure payment options for your convenience

American Express Apple Pay Diners Club Discover Google Pay JCB Mastercard PayPal Venmo Visa
Data Sheet

View full details
Regular price $237.35

Samlex Inverter 300 Watts 12V DC Pure Sine Wave 120VAC PST-300-12

The Samlex PST-300-12 is a compact, commercial-grade pure sine wave DC-AC inverter designed to convert 12V battery power into clean, low-distortion 120V AC electricity. With high efficiency, low idle consumption, and robust protection circuitry, it is ideal for mobile, marine, industrial, and emergency backup applications requiring dependable power for sensitive electronics.


Key Technology

  • 300W Pure Sine Wave Output
    Delivers utility-grade AC power with <3% THD, safe for sensitive electronics and chargers.

  • High Surge Capability
    Supports up to 500W surge power (<1 second) for starting small motors and inductive loads.

  • Wide 12V DC Input Range
    Operates from 10.5 – 16.5 VDC, ensuring stable performance in vehicle and battery systems.

  • Universal Protection Circuit (UPC)
    Built-in protection against low voltage, high voltage, overload, short circuit, ground fault, and over-temperature conditions.

  • Commercial-Grade Design
    Engineered for heavy-duty loads, long periods of continuous operation, and emergency backup use.


Best Uses

  • RV, Van & Mobile Power Systems
    Clean AC power for tools, appliances, and electronics from a 12V battery bank.

  • Marine Applications
    Pure sine output protects navigation electronics and onboard equipment.

  • Off-Grid & Portable Power
    Reliable power for cabins, mobile workstations, and remote setups.

  • Emergency Backup Power
    Provides dependable AC power during outages.


Cooling & Safety

  • Temperature-controlled cooling fan for reduced noise and energy consumption

  • Dual GFCI-protected AC outlets

  • LED indicators for power and protection status

  • Reverse-polarity protection on DC input


Warranty & Compliance

  • Manufacturer Warranty: 2-year limited warranty

  • Safety: Intertek-ETL Listed, conforms to ANSI/UL 458

  • EMI / EMC: FCC Part 15(B), Class B


Product Specifications

Specification Details
Model PST-300-12
Inverter Type Pure Sine Wave
Continuous Output Power 300 W
Surge Power 500 W (< 1 sec)
AC Output Voltage 120 VAC ±3%
AC Output Frequency 60 Hz ±1%
Maximum AC Output Current 2.54 A
Nominal DC Input Voltage 12 VDC
DC Input Voltage Range 10.5 – 16.5 VDC
Maximum DC Input Current 40 A
No-Load DC Current < 500 mA
Peak Efficiency 88%
AC Output Connections Dual NEMA 5-20R GFCI outlets
Operating Temperature 32°F to 104°F (0°C to 40°C)
Dimensions 9.69 × 5.76 × 2.58 in
Weight 3.46 lbs
Warranty 2 years

 

About Samlex:

Samlex is a global manufacturer of power conversion products founded in 1991 and based in Burnaby, Canada. They make inverters, battery chargers, converters, power supplies, solar charge controllers and related accessories for mobile, industrial, off‑grid, RV, marine and telecom uses. Samlex products are known for reliability, quality and broad international distribution.


Compact, Commercial-Grade 12V Power

The Samlex PST-300-12 delivers clean sine wave output, strong protection features, and reliable performance—making it an excellent choice for professionals who need dependable 12V AC power in mobile, marine, and backup applications.

 

Why Buy From US Solar Supplier

US Solar Supplier is an American-founded company based in Kentucky dedicated to offering top-quality solar components from trusted manufacturers. We provide competitive pricing, dependable inventory, and products backed by warranties you can trust.

Our inventory is updated daily with the latest solar technologies, and our experienced team is ready to assist with product selection, system design, and installation guidance.


Need Assistance?

Have questions before you order? Call 1-800-230-7004 to speak with our knowledgeable support team. We’re here to help with product details, compatibility questions, or purchasing support.