Model Number:3909

3909, 3/8 Hp, 0-24V ABL-3906C, Compact Low Voltage Brushless DC Control

3909, 3/8 Hp, 0-24V ABL-3906C, Compact Low Voltage Brushless DC Control


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HP Rating: 3/8
Input Voltage (VDC): 24-35
Output Voltage (VDC): 0-24
Continuous Output Current (Amps): 18
Peak Output Current (Amps): 27
Form Factor: 1
Product Type: ABL-3906C
HPDecimal: 0.375


The type ABL-3906C brushless DC Control operates from a DC power supply or from a battery (12 VDC or 24 VDC, depending on the control model). The control provides the necessary electronic commutation and phase current switching to operate Bodine low voltage brushless DC gearmotors and motors.


  • Input Voltage Range: 12-14 VDC (model 3908) or 24-35 VDC (model 3909 and 3919).
  • Control Functions: include dynamic braking, direction, and enable.
  • Speed Adjustment: can be controlled by an external potentiometer (included), the onboard MAX speed trim potentiometer, or a 0-5 VDC analog input signal.
  • User-Adjustable Pots: for speed settings, torque limit, acceleration time.
  • 12 PPR (pulse/revolution) tach output provides indication of motor speed.
  • Inherent closed loop system maintains a 2% maximum change in motor speed from 0-100% of rated load when operated at rated speed.
  • Smart Reverse™ circuit prevents plug reversing if the user accidentally or intentionally changes the direction signal without bringing the motor to a stop first.

Application Information

  • Extended 2-year system warranty when a Bodine gearmotor/motor and control are purchased together.
  • Models 3909 and 3919 drive Bodine 24V brushless DC motors and gearmotors up to 3/8HP.
  • Model 3908 drives custom 12V BLDC motors and gearmotors. Call for details.
  • To be mounted in separate enclosure supplied by user.
  • Output voltage is up to 95% of input voltage.
  • 20kHz PWM switching frequency.
  • Rated for +50° C ambient (max).
  • Commutation is 60° for models 3908 and 3909; 120° for model 3919.
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