• Morningstar Sunkeeper Solar Regulator 12 amp

This solar regulator is mounted directly to the solar panel's junction box. This eliminates the need for an additional housing for the controller. The kit also includes a removable mounting plate to mount it away from the solar panel.

It is epoxy sealed for outdoor use and certified for use in Class 1, Division 2 hazardous locations, making it an ideal controller for solar powered oil/gas applications.

Available in a 6 amp or 12 amp versions;

  • 6A for solar panels up to 85 watts
  • 12A for solar panels up to 170 watts


  • High Reliability - 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 - 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.
  • 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.
  • Rated for Hazardous Locations - Specifically designed for solar power systems in the oil/gas industry. Approved for use in Class 1, Division 2, Groups A,B,C,D.
  • Easy to Install and monitor - Fits standard half inch conduit knockout (PG 13.5, M20) in module junction box. It can also be mounted seperately using the included mounting plate which is removed when attaching to a junction box, both methods fasten with included locknut.
  •  Wires have fork connectors for easy connection to solar module terminals. 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.

Mechanical Specifications
• Dimensions 99 x 51 x 13 mm
• Weight 0.11 kg
• Enclosure IP65
• Fitting to Module J-box PG 13.5, M20, 1/2 inch conduit • Wire Size 2.0 mm2 (#14 AWG)
• Wire Terminations #8 fork connectors

Electrical Specifications
• Ability to Charge a Zero Voltage
• Rated Solar Input: SK-6 6 amps SK-12 12 amps
• Nominal System Voltage 12 Volts • Min. Battery Voltage 0 Volts
• Max. Solar Voltage 30 Volts • Self-Consumption Charging...7 mA Night ........2 mA
• Voltage Accuracy ± 150 mV Battery Charging
• Regulation Voltage 14.1 Volts (at 25˚C)
• Float Voltage 13.7 Volts (at 25˚C)
• Type of Charging Series PWM 3 stage: bulk, PWM and float
• Temperature Compensation (3 choices)

  1. Reading temp at controller –30 mV / ˚C
  2. Attaching remote temp sensor –30 mV / ˚C
  3. Disable temp comp Defaults to 25˚C

Battery Electronic Protections
• Reverse Polarity • Short Circuit
• Overcurrent • Lightning and Transient Surges
• High Temperature
• Reverse Current at Night

Morningstar SunKeeper Manual (PDF File)

Morningstar Sunkeeper Solar Regulator 12 amp

  • Product Code: SK-12
  • Availability: No Stock
  • $170.00

  • Ex Tax: $154.55

Tags: charge controller, Regulators, sma