Morningstar SunGuard 4 Charge Controller 12V

The Morningstar SunGuard 4 Charge Controller 12V is no longer available from Infinigi.

Regrettably, we do not have any inventory left nor have access to this product as it is discontinued. Please note that we place this message on products that we have exhausted our options in obtaining. Contacting us will only reaffirm this message.

Thank you,
Infinigi Staff

Morningstar SG-4-12 Summary
Product Type
Charge Controller
Battery Voltage
12 Volts
Charging Type
Output Current
4 Amps
PV Open Circuit Voltage
30 Voc
PV Input @ 12V
48 Watts
Display Included

Morningstar SunGuard 4 Charge Controller 12V

SunGuard 4 Charge Controller 12V, 4 Amp

Morningstar’s SunGuard is the most advanced small, economical solar charge controller on the market today.

SunGuard’s technology provides:

  • Exceptional Reliability
  • PWM Battery Charging
  • Consistent High Quality
  • Low Cost

The SunGuard is able to match the quality and performance of the world-leading SunSaver controllers because:

  • SunGuards are made on the same high speed, automated production lines
  • SunGuards use the same charging circuit
  • SunGuards use the same high quality components

    Features of the Morningstar SunGuard 4 Charge Controller 12V:

  • ISO 9002 quality programs
  • Series design (not shunt)
  • 100% solid state
  • True 0 to 100% PWM duty cycle
  • Setpoint accuracy to 60 mV
  • Temperature compensation
  • Rated for 25% overloads
  • No need to derate
  • Lightning protected with 1500 W transorbs
  • Self-consumption is 6 mA
  • Fully encapsulated in epoxy potting
  • ABS plastic, impact-resistant case
  • Outdoor rated, Hypalon connecting wires

    SunGuard’s PWM charging compared to On-Off solar regulators:
    • Typically 30% more solar energy into the battery per day
    • Average battery State-of-Charge is 90 – 95% compared to 55 – 60% for On-Off regulators

    Mechanical Specifications

    Wire size #16 AWG
    ABS plastic case
    Epoxy encapsulated
    Weight is 3 oz (0.09 kg)

    Electrical Specifications

    Rated Solar Input
    Max. Input (5 min.)5.5Amps
    System Voltage12Volts
    Max. Solar Voltage30Volts
    Regulation Voltage14.1Volts
    Temp. Compensation-28mV/°C
    Reverse Current Leakage<10µA
    Operating Temperature- 40 to +85°C

Also Known As:
SG 4 12

Note: Specifications and pricing of the Morningstar SunGuard 4 Charge Controller 12V subject to change without notice. Illustrations and descriptions of the Morningstar SG-4-12 do not claim to be complete or exhaustive.

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