Morningstar SunGuard 4 Charge Controller 12V
List Price: $38.00
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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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