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Morningstar Prostar MPPT charge controller 25A, 12 / 24V, no display, automatic PV based lighting load control
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The Prostar MPPT solar charge controller with TrakStar technology is an advanced maximum power point tracking (MPPT) battery charger for off-grid photovoltaic (PV) systems up to 1100 watts. This controller allows two modules in series on a 12V battery system and two or three modules in series on a 24V battery system. Detailed battery programming options allow for advanced battery support for the latest lithium, nickel cadmium, and lead acid battery types. Automatic PV based lighting load control is provided out of the box.
Key features and benefits
- High reliability: Conformally 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 insolation changes throughout the day
- High efficiency across low, medium, and high power levels
- Data logging: Detailed logging of power and load data confirms performance and helps isolate system inconsistencies
- Low noise design: Meets FCC Class B specifications
- Automatic PV based lighting control: Multi-event load control enables powerful options for PV lighting systems and settings can easily be adjusted in the field
- MODBUS communications: Solar industry standard MODBUS communications protocol allows for easy programming, control, remote data access and charge synchronization with other system hardware
- High strength / polycarbonate case and extruded aluminum heatsink
- Self diagnostics: The ProStar MPPT continuously monitors and reports any internal hardware issues or system problems through its status LEDs, optional display or communication port
| Type | MPPT |
| Battery voltage [V] | 12, 24 |
| Maximum Current 12V Battery [A] | 25 |
| Maximum Current 24V Battery [A] | 25 |
| Max. PV Array @ 12V [W] | 350 |
| Max. PV Array @ 24V [W] | 700 |
| Max PV Open Circuit Voltage 12V [V] | 120 |
| Max PV Open Circuit Voltage 24V [V] | 120 |
| Number of MPPT | 1 |
| Number of Strings/MPPT | 1 |
| Efficiency [%] | 98 |
| Supported battery types | Lead acid, AGM, GEL, Lithium |
| Terminal Block Size [AWG] | 6 |
| Terminal Block Temp Rating [C] | 90 |
| Ambient temperature [C] | -40 to +60 |
| Grounding | Negative |
| Consumption | 31 mA |
| Display | No display |
| Data communication options | RJ11 MeterBus port. Supports MODBUS and MeterBus protocols. |
| Material | IP20 Type 1 polycarbonate case |
| Certifications | CE, RoHS, UL1741, CSA, IEC 62109, CEC, FCC class B |
| Note (1) | Automatic PV based lighting load control is provided |
| Width [cm] | 20 |
| Height [cm] | 17 |
| Depth [cm] | 7 |
| Weight [kg] | 1.4 |
| Warranty [years] | 5 years |
| Minimum PWM/MPPT Voltage @ 12V [V] | 15 |
| Minimum PWM/MPPT Voltage @ 24V [V] | 30 |
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