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Morning Star ProStar PS-MPPT-40 Controller Without Meter

$ 525.00

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 multiple modules in series for 12V and 24V battery systems. Detailed battery programming options allow for advanced battery support for the latest Lithium, Nickel Cadmium, and Lead Acid battery types.

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The NEW ProStar MPPT™ is a mid-range MPPT solar charge controller with TrakStar Technology™ that provides maximum power point tracking (MPPT) battery charging for off-grid photovoltaic (PV) systems up to 1100 watts. Available with and 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.

Data Sheet
Operation Manual

Electrical PS-MPPT-40
Max. Battery Current 40 Amps
Load Current Rating 30 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 550W @45C
24 volt battery 1100W @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
Operating Temperature Range -40 C to +60 C
Meter Operating Temperature Range -20 C to +60 C
Storage Temperature -40 C to +80 C
Humidity 100% non-condensing
Tropicalization Conformal coating, marine-rated terminals
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
Electronic Protections
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

Additional information

Weight 4 lbs
Dimensions 7.9 × 6.7 × 2.8 in
Manufacturer Part Number


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