SunSaver MPPT Specifications

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8 Pheasant Run, Newtown, PA 18940 USA www.morningstarcorp.com
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.
SUNSAVER MPPT™ SOLAR
CONTROLLER
WITH MAXIMUM POWER POINT TRACKING
• Maximizes Energy Harvest
• Use of High Voltage Modules
• Lower System Cost
• Personal Computer Connectivity
KEY FEATURES AND BENEFITS
Maximizes Energy Harvest
Our TrakStar MPPT Technology features:
• Peak efciency of over 97%
• Almost no power losses
• Recognition of multiple power peaks during shading or mixed
PV arrays
• Excellent performance at low solar insolation levels
Use of High Voltage Modules
Enables the use of high voltage and thin lm modules for off-grid
battery charging.
Higher Voltage PV Arrays
Provides a means to use a higher voltage PV array to charge either
a 12V or 24V 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 lm
modules and decreasing cable sizes.
Load Control
Automatically disconnects loads when the battery has been
discharged to a low state of charge.
Personal Computer Connectivity
• USB MeterBus Adapter for laptop compatibility
• PC MeterBus Adapter for RS-232
• Fully adjustable user selection via on-board preset switches or
customized with PC connection
• Advanced automatic custom programmable lighting control
with a PC connection
• Extensive controller and system data is provided by the status
LED’s and optional meter. Monitoring is also available with a
personal computer
• 30 days of internal data logging of key PV system operating
parameters
Smaller Size
Mechanical dimensions are less than other MPPT controllers,
making it easier to install in equipment enclosures.
Highly Reliable
Efcient electronics, a conservative thermal design and
tropicalization result in high reliability and long life.
Extensive Electronic Protections
Fully protected against most system errors and faults.
Longer Battery Life
Efcient MPPT tracking and 4-stage charging increases battery life.
The SunSaver MPPT is well suited for both professional and consumer
PV applications including automatic lighting control. 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.