Since the introduction in 1996, more than 1.5 million SunSaver Controllers have set the standard for reliability and performance in demanding oilfield and mining installations in nearly 90 countries around the globe. Today, SunSaver is the world’s leading small solar controller for industrial and consumer markets, proven in mission critical applications where failure is simply not an option.

This third generation SunSaver brings over two decades of advances in software and electronics to the same rugged, hardened design that made the original famous. Own both a legend and the latest in a single product.

“This is the only one I’d use…it’s the one I wish I bought first”

Specifications and Certifications by Model

Model SS-6-12V SS-6L-12V SS-10-12V SS-10L-12V SS-10L-24V SS-20L-12V SS-20L-24V
*In periods following excessive battery drain, provided the controller is not power cycled, the controller can self-recover from a battery voltage of 1V and provide intermittent charging operation up to 6V at which normal operation will resume.
Charge Rating 6 amps 6 amps 10 amps 10 amps 10 amps 20 amps 20 amps
Max. PV Open Circuit Voltage (Voc) 30 volts 30 volts 30 volts 30 volts 60 volts 30 volts 60 volts
Nominal Battery Voltage 12V 12V 12V 12V 24V 12V 24V
Minimum Battery Voltage 6V* 6V* 6V* 6V* 6V* 6V* 6V*
Load Control No Yes No Yes Yes Yes Yes
Voltage Accuracy +/- 25mV +/- 25mV +/- 25mV +/- 25mV +/- 48mV +/- 25mV +/- 48mV
Operating Temperature Range -40 C to +60C -40 C to +60C -40 C to +60C -40 C to +60C -40 C to +60C -40 C to +60C -40 C to +60C
Warranty 5 Years 5 Years 5 Years 5 Years 5 Years 5 Years 5 Years
CE and RoHS compliant Yes Yes Yes Yes Yes Yes Yes
TAA compliant Yes Yes Yes Yes Yes Yes Yes
Approved for use in Hazardous Locations: Class 1, Division 2, Groups A-D Yes Yes Yes Yes Yes Yes Yes
ETL Listed [UL-1741 and Canadian CSA C22.2 No.107.1.01] Yes Yes Yes Yes Yes Yes Yes
FCC Class B Part 15 Compliant Yes Yes Yes Yes Yes Yes Yes
Manufactured in a Certified ISO 9001 Facility Yes Yes Yes Yes Yes Yes Yes
Key Features and Benefits
  • Extremely High Reliability
    • Failure rate of less than 1 per 1,000 shipped (<0.1%)
    • 100% solid state. Power MOSFET design
    • Manufactured in an ISO 9001 factory
    • 100% pre-shipment functional testing
  • Easy to Install and Use
    • Factory pre-sets result in no required install settings
    • Electronic protections prevent damage from wiring mistakes
    • Fully automatic operation and fault recovery
    • Additional features include full electronic protections, 3-state battery LED indicators, terminal cover, dead battery recovery, high voltage load protection for sensitive loads
    • Wire terminal cover included with every SunSaver
  • Longer Battery Life
    • Series design (not shunt) for cool operation
    • Longer battery life through PWM 4-stage charging and temperature compensation
    • Sealed or flooded battery select
    • Low voltage load disconnect on several versions
  • Designed for Harsh Environments
    • Temperature rating of -40°C to +60°C
    • Ideal for Oil/Gas applications. Approved for use in hazardous locations: Class 1, Division 2, Groups A-D
    • Tropicalization—hardened for field use with anodized aluminum enclosure, epoxy encapsulation, marine-rated terminals

Morningstar "Charging Experts" featuring SunSaver | 7 minute video

This 7 minute video features the HazLoc ratings and internal and external components of Morningstar’s SunSaver Solar Charge Controllers and explains why Morningstar has been considered the “charging experts” for over a quarter of a century.