The NEW ProStar PS-MPPT-25 Charge Controller is equipped with TrakStar Technology™ that provides maximum power point tracking (MPPT) battery charging for off-grid photovoltaic (PV) systems up to 1100 watts. Available without advanced built-in meter. This device is ideal for industrial and residential applications. A Wire Box accessory to reduce hazards associated with exposed wires and connections can be purchased separately.
High Reliability – conformal coated circuit board and corrosion resistant terminals.
Maximizes Energy Harvest – using TrakStar MPPT Technology to determine and adjust to the true maximum power point as solar insulation changes throughout the day.
High Efficiency – at low, medium, and high power levels.
Data Logging – up to 256 days of detailed power and load data.
Low Noise Design – meets US Federal Communications Commission Class B specifications
Automatic PV Based Lighting Control – field adjustable,multi-event load control enables powerful options for PV lighting systems.
MODBUS Communications – Solar Industry Standard MODBUS communications protocol allows for easy programming, control, remote data access and charge synchronization.
High Strength – polycarbonate case and extruded aluminum heatsink.
Self Diagnostics – continuous monitoring and reporting of any errors through its status LED’s, optional display or communication port.
Max. Battery Current 25 Amps
Load Current Rating 25 Amps
Max. PV Open Circuit Voltage (Voc) 120 Volts (without damage to unit)
Nominal Battery Voltage 12V or 24V
Nominal Max. Operating Power*
12 volt battery 350W @45C
24 volt battery 700W @60C
Peak Efficiency 98%
Battery Voltage Range 10-35V
Voltage Accuracy <= 0.1% +/- 50mV
Self-Consumption normal: 0.6W; maximum: 1W
LED Indications (1) status, (3) Battery S.0.C.
Transient Surge Protection solar, battery, load
Load & Lighting Control
Low Voltage Disconnect, Low Voltage Reconnect Settings:
11.4V/12.6V or custom (x2 for 24 volt systems)
Lighting Settings: Dusk-dawn or custom
Standard: 20 x 17 x 7 cm / 7.9 x 6.7 x 2.8 in
w/ Wire Box: 20 x 28.5 x 9.2 cm / 7.9 x 11.2 x 3.6 in
Standard: 1.4 kg / 3.1 lbs
w/ Wire Box: 1.8 kg / 4.0 lbs
Wire Size Range
Power terminals: 2.5 – 35 mm2 / 14 – 2 AWG**
Battery/Temp. sense: 0.25 – 1.0 mm2 / 24 – 16 AWG
Knockouts (wiring box option): M20, 1/2”, 1” (trade sizes)
Enclosure: IP20, Type 1
Automatic recovery without fuses
Solar Input: overload, short-circuit, high voltage warning, reverse polarity, high temperature, nighttime reverse current
Load Output: overload, short-circuit, high temperature,reverse polarity
Battery: reverse polarity (no battery removal)
Battery Charging : 4-stage charging: Bulk, Absorption, Float, Equalize , 7 standard battery settings and customization , Temperature Compensation
Coefficient: -5 mV / C /cell (25 C / 77 F ref.)
Range: -30 C to +60 C / -22 F to +140 F
Setpoints: Absorption, Float, Equalize Data & Communications
Communication Port: MeterBus
Protocols: Morningstar MeterBus, MODBUS
Datalogging: 256 days, daily records
PC Software: MSView
CE; RoHS; ETL Listed (UL1741, UL 62109); cETL (CSA-C22.2 No. 107.1)
TUV (IEC 62109-1); FCC Part-15 Class B compliant
Manufactured in a certified ISO 9001 facility