U.S. Automatic 520004 AC Adapter 18 Volt Transformer


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  • Low Voltage UL approved transformer
  • Can easily provide 575 cycles of operation a day
  • Keeps battery charge strong in case of power outage
  • Works with other solar accessories
  • Note: The 120 vac receptacles should be installed by a qualified Electrician, per local building codes

The US Automatic transformer is a low Voltage UL approved transformer. The transformer is equipped with a DC plug for easy connection to the charge controller and can easily provide 575 cycles of operation a day without decreasing the battery charge. In the event AC power goes out the opener will operate for weeks on the battery (if cycles per day are below 20) before needing service. Accessories connected to the opener are critical. Always use solar friendly accessories to help avoid premature battery failure in cases of power outages. Transformer must not get wet.

QB ID: 520004