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SunGuard 4.5 Amp PWM Solar Charge Controller

SunGuard 4.5 Amp PWM Solar Charge Controller
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Price: $32.14
Availability: 1
Model: SG-4
Manufacturer: Morningstar Controllers
Average Rating: Not Rated

Morningstar SunGuard 4.5 Amp 12 Volt Pulse Width Modulaton (PWM) Weatherproof Solar Charge Controller

The Morningstar SunGuard controller is 100% weatherproof and rated for outdoor or indoor use on solar modules between 5 to 70 watts.

From the Manufacturer

Morningstar's SunGuard™ is the world's leading single module solar controller. We have combined all the advantages of our SunSaver charging circuit with less expensive packaging to provide an economical controller for small photovoltaic (PV) systems.

Product Features

  • Exceptional reliability
  • PWM (Pulse width modulation) battery charging
  • Consistent high quality
  • Low cost
  • Series design
  • 100% solid state
  • True 0 to 100% PWM duty cycle
  • Setpoint accuracy to 60 mV
  • Temperature compensation
  • Rated for 25% overloads (for 5 minutes)
  • Self consumption is 6 mA
  • Fully encapsulated in epoxy potting
  • ABS plastic impact resistant case
  • 16 gauge AWG connecting leads
  • Outdoor rated Hypalon connecting leads
  • 5 Year warranty
  • Maximum solar input: 4.5 amps
  • Maximum system voltagte: 30 volts
  • Regulation voltage: 14.1 volts
  • Operation temperature range: -40 to 185 degrees fahrentheit

SunGuard data sheet
SunGuard Owners/Installation manual

What's in the Box
1 - SunGuard 4.5 amp PWM charge controller
1 - SunGuard Owners/Installation manual

Notes from the Installation Team
We frequently use SunGuard controllers on small solar modules. The controller is well built and rock solid. The controller has a small footprint ot 2" square (2.5" including mounting tabs) and 1.5" deep. It has four leads that emerge from the epoxy encapsulation. Two leads for solar and two leads for the battery. The bottom of the controller has two small triangular shaped tabs with holes in them for mounting.

I have Morningstar SunGuards on various sizes of small modules that I use for keeping the batteries charged on the plow truck, my boat and my hunting camper. I have been using them for years and find them to be very reliable and rugged. From first hand experience we can recommend this product for small solar battery charging applications.

What you need to Acquire
1 - Automotive type ATC fuse link and fuse sized for your solar module
1 - Length of 16 gauge AWG (or larger) two strand wire for running charge circuit from controller to battery
2 - Ring terminals or alligator clamps for battery connections


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