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Morningstar ProStarMorningStar Prostar

The Morningstar ProStar is the world’s leading mid-range solar controller for both professional and consumer applications. This second generation ProStar:

  • Adds new features and protections using highly advanced technology
  • Provides longer battery life and improved system performance
  • Sets new standards for reliability and self-diagostics

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Standard Features:

  • Versions available:
    • 15 or 30 amp
    • 12 / 24 or 48 volt
    • negative or positive ground
  • Estimated 15 year life
  • PWM series battery charging (not shunt)
  • 3-position battery select: gel, sealed or flooded
  • Very accurate control and measurement
  • Jumper to eliminate telecom noise
  • Parallel for up to 300 amps
  • Temperature compensation
  • Tropicalization: conformal coating, stainless steel fasteners & anodized aluminum heat sink
  • No switching or measurement in the grounded leg
  • 100% solid state
  • Very low voltage drops
  • Current compensated low voltage disconnect (LVD)
  • LED’s indicate battery status and faults
  • Capable of 25% overloads
  • Remote battery voltage sense terminals

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Electronic Protections:

  • Short-circuit — solar and load
  • Overload — solar and load
  • Reverse polarity
  • Reverse current at night
  • High voltage disconnect
  • High temperature disconnect
  • Lightning and transient surge protection
  • Loads protected from voltage spikes
  • Automatic recovery with all protections

ProStar Options:

  • Digital meter
    • Highly accurate voltage and current display
    • Low self-consumption (1 mA)
    • Includes manual disconnect button
    • Displays 5 different protection functions and disconnect conditions
    • Self-Diagnostics (self-test) provides a comprehensive test of the ProStar
      • Displays 9 different controller status parameters, including temperature
      • Displays detected faults
  • Positive ground
  • Remote temperature probe

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ProStar Versions:

PS-15 PS-30 PS15M-48V
Rated Solar Current 15A 30A 15A
Rated Load Current 15A 30A 15A
System Voltage 12/24V 12/24V 48V
Digital Meter yes yes standard
Positive Ground no yes yes
Remote Temp. Probe yes yes yes


Battery Voltage Setpoints*

Gel Sealed Flooded
Regulation Voltage 14.0 14.15 14.4
Float 13.7 13.7 13.7
Equalization n/a 14.35 14.9/15.1
Load Disconnect 11.4 11.4 11.4
Load Reconnect 12.6 12.6 12.6

Note: Values are for 12V. Use 2X for 24V and 4X for 48V.[/vc_column_text][vc_column_text]

Electrical Specifications:

12V 24V 48V
Temp. Comp. (mV/ ̊C)* – 30mV – 60mV – 120mV
Accuracy 40mV 60mV 80mV
Min. voltage to operate 8V 8V 15V
Self Consumption 22mA 25mA 28mA
LVD current coefficient** – 20mV – 40mV – 80mV
Charge algorithm PWM, constant voltage
Operating temperature – 40 ̊C to + 60 ̊C
Digital Display
Operating temperature – 30 ̊C to + 85 ̊C
Voltage accuracy 0.5%
Current accuracy 2.0%
Self-consumption 1 mA

* 25 ̊C reference
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Optimized Battery Charging:

The ProStar has 4 stages of charging to provide increased battery capacity and life.

Morningstar ProStar Battery Charging

Morningstar ProStar Mechanical SpecificationsMechanical

12 oz
(0.34 kg)
Wire Size:
#6 AWG
(16 mm2)[/vc_column_text][/vc_column][/vc_row][vc_row][vc_column width=”1/1″][vc_column_text]WARRANTY: Five year warranty period. Contact Morningstar or your authorized distributor for complete terms.[/vc_column_text][/vc_column][/vc_row]