Morningstar Sunkeeper Duo SK-12 PWM 12v 12Amp

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  • $189.99
  • Regular price $219.99
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SunKeeper™ solar controller provides a low cost regulated output directly from the solar module to maximise battery life in small solar power applications. The SunKeeper is epoxy encapsulated and rated for outdoor use. By mounting directly to the module junction box and wiring through the junction box knockout, the connection is weather-proof. This eliminates the need for an additional housing for the controller.

Key features and benefits

  • High Temperature Rated
    Rated to 70°C to operate in high temperatures at the solar module.
    More reliable than controllers mounted inside the junction box. Uses
    very low on-resistance power MOSFET’s. No need to re-rate.
  • Outdoor Rated Rugged Design
    ETL approved for outdoor use without an additional enclosure. Rugged
    IP65, UV resistant case. Epoxy encapsulated printed circuit board and watertight connection to the module junction box.
  • Ideal for Oil/Gas Applications
    Specifically designed for solar power systems in the oil/gas industry.
    Approved for use in Class 1, Division 2, Groups A,B,C,D.
  • Extensive Electronic Protections
    Fully protected against reverse polarity, short circuit, overcurrent, lightning and transient surges, high temperature and reverse current at night.
  • Longer Battery Life
    Series PWM with 3 stage charging: bulk, PWM regulation and float.
    Includes temperature compensation at the controller or alternatively at
    the battery when using optional remote temperature sensor. Able to
    charge a zero voltage battery.
  • More Information
    Bi-color LED is easy to read from the ground when the solar module
    is pole-mounted. Indicates solar charging, regulation, normal nighttime operation and any controller or system faults.
  • Easy to Install
    Fits standard half inch conduit knockout (PG 13.5, M20) in module
    junction box. Quickly fastens with included locknut. Wires have fork
    connectors for easy connection to solar module terminals.


Operating Manual