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Maradyne M103K 10 inch 12 VDC blower fan with black plastic housing and visible blades

Maradyne

Maradyne M103K 10 Inch 12 VDC 950 CFM Blower

SKU CH-CV33-0NDWM

A 10-inch 12 VDC blower delivering 950 CFM at zero static pressure for high-performance cooling

  • Delivers 950 CFM airflow at zero static pressure
  • Maintains 900 CFM at 0.125 in. SP for ducted runs
  • Provides 800 CFM at 0.250 in. SP under load
  • Operates up to 200 °F ambient temperature
  • Runs on 12 VDC drawing 7.9 amps

Maradyne M103K 10 Inch 12 VDC Blower

The Maradyne M103K is a 10 inch 12 VDC blower designed for automotive and mobile HVAC applications where high-volume airflow is required. It delivers up to 950 CFM at zero static pressure for installers needing strong cooling or ventilation performance.

CFM ratings across static pressures

Airflow decreases predictably as static pressure rises: 900 CFM at 0.125 in. SP, 800 CFM at 0.250 in. SP, 700 CFM at 0.375 in. SP, and 468 CFM at 0.500 in. SP. These figures let engineers match the blower to duct resistance without guesswork.

Totally enclosed motor with sleeve bearings

A totally enclosed DC motor rated at 5/64 hp runs at 2600 to 3200 RPM and draws 7.9 full-load amps, while tolerating ambient temperatures up to 200 degrees F. The sleeve bearing construction and 12 VDC supply suit mobile installations where simplicity and heat resistance matter.

Highlights

  • Delivers 950 CFM airflow at zero static pressure
  • Maintains 900 CFM at 0.125 in. SP for ducted runs
  • Provides 800 CFM at 0.250 in. SP under load
  • Operates up to 200 °F ambient temperature
  • Runs on 12 VDC drawing 7.9 amps

Specifications

BrandMaradyne

Questions about this item

Will the sleeve bearings need lubrication or replacement after extended use?

The motor uses sleeve bearings and runs at 2600 to 3200 RPM; sleeve bearings typically require periodic lubrication or eventual replacement depending on duty cycle and ambient conditions.

At what static pressure does airflow drop below 500 CFM?

Airflow falls to 468 CFM at 0.500 in. SP; at 0.375 in. SP it is still 700 CFM, so the 500 CFM threshold is crossed between those two points.

How much current does the fan draw when running continuously at full load?

Full-load current is 7.9 amps at 12 VDC, equating to roughly 95 watts of continuous power draw.

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