ProStar Controller @ 15amps with meter - Morningstar

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    Product Details

    Morningstar’s ProStar™ has been upgraded. This new third generation model offers additional features and capabilities while maintaining the same form factor, quality, and reliability that has made the ProStar the world’s leading mid-range PWM solar controller for professional and consumer applications since 1995.

    Available in 3 options:

    • SR-PS-15M – 15 amp with meter

    • SR-PS-30 – 30 amp no meter

    • SR-PS-30M – 30 amp with meter


    High reliability – latest electronic and environmental protections, quality control, and design considerations comply with IEC 62109 and promote longevity in the harshest environments.
    High Temperature Design – full nameplate current rating, both solar and load up to 60°C continuous.
    Auto-battery-select – 12V and 24V systems.
    Data Logging – up to 256 days of solar charge and load consumption data.
    Low Noise Design – meets US Federal Communications Commission Class B specifications.
    Automatic Solar Based Lighting Control – field adjustable, multi-event load control enables powerful options for solar lighting systems.
    MODBUS Communications – open standard MODBUS communications protocol allows for control and remote data access.
    Durable Design – high strength polycarbonate case with protective terminal cover and extruded aluminum heatsink.
    Self Diagnostics – continuous monitoring and reporting of any errors or system faults through its status LED’s, optional display and communication port.
    Meter – high resolution LCD, multi-lingual backlit graphical display of system voltage, current, temperature, lighting settings, etc.
    Custom Programming – dip switches, meter interface, or connection with a computer can be used to adjust charging, load, communications, and lighting control.

    Other Benefits

    Estimated 15 year life
    Compliance with IEC 62109
    PWM series battery charging (not shunt)
    8 dip switches to adjust battery charging and other settings
    High resolution graphical meter to adjust settings and display logged data
    RJ-11 MeterBus port for serial MODBUS data or to add a remote meter
    Compatible with Morningstar’s Ethernet MeterBus Converter (EMC-1)
    Up to 256 days of data logging
    Dusk-to-dawn and advanced programmable lighting control
    Protective terminal cover
    Enhanced surge rating for heavy DC loads
    Slow switching mode to eliminate system noise at telecom sites
    Parallel for up to 300 amps
    Temperature compensated charging

    No switching or measurement in the grounded leg
    100% solid state
    Very low voltage drops
    Current compensated low voltage disconnect (LVD)
    LED’s to indicate battery status and faults
    Capable of 25% overloads
    Remote battery voltage sense terminals










    Nominal Battery Voltage
    12V or 24V

    Battery Voltage Range

    Voltage Accuracy
    <= 0.1% +/- 50mV

    Maximum Battery Current
    15A or 30A

    Maximum Solar Input Voltage (12V/24V bat)

    Load Current Rating
    15A or 30A

    20 mA*

    LED Indications
    (1) status, (3) Battery state of charge

    Transient Surge Protection
    1500 Watts (solar, battery, load)


    Operating Temperature
    -40°C to + 60°C

    Meter Operating Temperature
    -20°C to + 60°C

    Storage Temperature
    -40°C to + 80°C

    100% non-condensing

    conformal coating, marine-rated terminals


    128 X 64 pixels
    No meter
    128 X 64 pixels

    Viewing Area
    5.0 cm x 2.5 cm
    5.0 cm x 2.5 cm

    Display Color
    Blue on white
    Blue on white


    Battery Charging

    Battery Types
    7 Standard Battery Settings + Custom

    4-Stage Charging
    Bulk, Absorption, Float, Equalize

    Temperature Compensation
    Coefficient: -5 mV / °C / cell (25°C ref)

    Range: -30°C to + 60°C

    Set Points: Absorption, Float, Equalize


    15.3(W) x 10.5(L) x 5.5(D) cm

    6.0(W) x 4.1(L) x 2.2(D) in

    0.4 kg / 1.0 lbs

    Wire Size Range
    Power Terminals: 2.5 – 16 mm2 / 14 – 6 AWG

    Battery/Temp. Sense: 0.25 – 1.0 mm2 / 24 – 16 AWG

    IP20, Type 1

    Electronic Protections

    Solar Input
    overload, short-circuit, high voltage, reverse polarity, high temperature, nighttime reverse current