SK12

​RMSSK12

12 Volt 12 Amp SunKeeper Solar regulator.

Morningstar’s SunKeeper solar controller provides a low cost regulated output directly from the solar module to maximize 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.

The SunKeeper is available in a 6 amp or 12 amp version (both at 12 volts DC). To withstand the high temperatures at the solar module, the controller has been designed using extremely efficient power electronics and is rated to
70°C. The SunKeeper is also certified for use in Class 1, Division 2 hazardous locations, making it an ideal controller for solar powered oil/gas applications.

• 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.
Rated to 70°c to operate in high temperatures at the solar module. Can not be used on back of solar panel if heat exceeds 70°c.

• 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.

• ​More Information

Bi-colour 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.

Electronic Protections:​

• Reverse Polarity Protection
• Short-Circuit Protection
• Overcurrent Protection
• High Temperature Protection
• Reverse Current at Night Protection
• Lightning and Transient Surges

Electrical Specifications:
Rated Solar input: SK-6 SK-12	6 Amps 12 Amps
Nominal System Voltage	12 Volts
Minimum Battery Voltage	0 Volts
Maximum Solar Voltage	30 Volts
Self-Consumption	Charging....7mA Night....2mA
Voltage Accuracy	+/- 150mV
Dimensions	99mm x 51mm x 13mm

 

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) Reading Temp at Controller Attaching Remote Temp Sensor Disable Temp Compensation	-30mV/°C -30mV/°C Defaults to 25°c

•  Ability to Charge a Zero (0) Voltage Battery

Environmental Specifications:
Operating Temperatures	-40°c to +70°c
Humidity	100%
Tropicalisation	Encapsulated in epoxy UV resistant plastic enclosure Conduit connection with rubber gasket seal

 

Bi-Colour LED:
Green Blink 3 times	Successful Installation
Green On	Solar Charging battery
Green Blink fast	In Regulation
Green Blink slow	Normal nighttime operation
Red On	Controller Damaged
Red Blink	System Problem
LED OFF	No Power

*Specifications subject to change without notice