Morningstar Sunsaver 12/24V 15A solar reg

This item can usually be shipped within 3 business days. For further details, please call us on 133 SUN
Rated solar input:
Rated load ouput:
Regulation voltage (sealed battery):
Regulation voltage (flooded battery):
Nominal system voltages:

Mechanical Characteristics

169 mm
64 mm
169 mm
0.6 kg




Morningstar’s SunSaver MPPT solar controller with TrakStar Technology™ is an advanced maximum power point tracking (MPPT) battery charger for off-grid photovoltaic (PV) systems. The controller features a smart tracking algorithm that maximizes the energy harvest from the PV and also provides load control to prevent over discharge of the battery.

The SunSaver MPPT is well suited for both professional and consumer PV applications. Its charging process has been optimized for long battery life and improved system performance. This product is epoxy encapsulated for environmental protection, may be adjusted by the user via four settings switches or connection to a personal computer, and has an optional remote meter and battery temperature sensor. 

Design Features and Benefits 

Electronic Protections 

  • PV: Overload, Short Circuit, High Voltage

  • Load: Overload, Short Circuit

  • Reverse Polarity: Battery, PV and Load

  • Lightning and Transient Surges

  • High Temperature

  • Reverse Current at Night

Maximizes Energy Harvest 

  • Peak efficiency of over 97%
  • almost no power losses
  • recognition of multiple power peaks during shading or mixed PV arrays
  • excellent performance at low solar isolation levels

Use of High Voltage Modules 

  • Enables the use of high voltage and thin film modules for off-grid battery charging.

Converts 36V or 24V PV Arrays 

  • Provides a means to use up to a 36V PV array to charge either a 24V or 12V battery.

Lower System Cost 

  • Less expensive than other MPPT controllers and is affordable in smaller PV systems up to 400Wp. Allows system costs to be reduced by down-sizing the PV array, using on-grid or thin film modules and decreasing cable sizes.

Highly Reliable 

  • Efficient electronics, a conservative thermal design and trivialization result in high reliability and long life.

Fully Adjustable 

  • User selection via on-board switches or PC connection.

Extensive Electronic Protections 

  • Fully protected against most system errors and faults.

Longer Battery Life 

  • Efficient MPPT tracking and 4-stage charging increases battery life.

More Information 

  • The status LED’s and optional meter provide extensive controller and system data.

Data Logging 

  • Records key operating parameters of the PV system and includes 30 days of data logging.


  • 5 Year Warranty Period

Technical Specifications 

Electrical Characteristics
Peak efficiency 97.5 %
Nominal battery voltage 12V or 24V
Max battery current 15A
Battery voltage range 7V to 36V
Max PV open circuit voltage 75 V
Nominal max PV input 12 Volt battery 200 Watts
24 Volt battery 400 Watts
Output rating 15 A load control
Self consumption 35 mA
Transient surge protection 4 x 1500W
Battery Charging
Battery types Gel, Sealed, AGM, Flooded
4 stage charging Bulk, absorption, float, equalize(optional)
Temperature compensation Coefficient –5mV/°C / cell (25°C ref)
Range –30°C to +60°C
Set point Absorption, float,equalize
Mechanical Characteristics
Dimensions 16.9 x 6.4 x7.3 cm
Weight 0.6 kg
Power terminal 16 mm² / #6 AWG
Enclosure Die cast aluminium with plastic cover
Operating temperature –40°C to +60°C
Storage temperature –55°C to +100°C
Humidity 100% non-condensing
Tropicalization Epoxy encapsulation conformal coating marine rated terminals


  • Remote meter
  • Remote temperature sensor
  • PC meterBus adapter
  • DIN rail mounting clips

Quality and Safety 

  • CE compliant
  • RoHS Compliant
  • Manufactured in a certified ISO 9001 facility

Downloads and Manuals 

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