01223 858414
Ex Vat Inc Vat

Morningstar SunGuard 4.5A PWM Solar Regulator


Add to Cart

The SunGuard is the smallest controller we sell, suitable for solar panel systems delivering up to 63W. Tough and compact (it weighs a mere 90g and measures just 6 x 5 x 4 cm), it should keep your batteries in great condition for years. It comes with a 5 year manufacturer's warranty.

The tough outer case disguises sophisticated electronic circuits that regulate the solar voltage using pulse width modulation. PWM controllers maintain a higher state of charge in the battery bank than old-fashioned on-off regulators.

The SunGuard electronics are fully encapsulated in epoxy, so the SunGuard is completely weatherproof, and can be used in almost any location.


  • High efficient Series PWM charging
  • Max. PV input voltage: 30V
  • Fully encapsulated in epoxy setting
  • Lightning protected
  • Local external temperature compensation
  • Electronic protection: over charging, short circuit, battery reverse polarity protection

For use with 12V panels and battery banks only.