AB4 Driver Amplifier

Part Number: N/A Category:

The AB4 amplifier offers the same performance as the AB1A, in a reduced package. The AB4 operates off of 12Vdc supply input and can drive up to 4 HR motor elements total, either 1 x 4 element HR motor, or multiple HR motors totaling 4 elements. The AB4 is the smallest standard motor amplifier and is provided with a 26-pin rear connector (26 pin, two row header). This connector provides access to all functionality (motor, power inputs, limits, and I/O functions), making it easy to integrate. Additional motor and power inputs are available with standard connections on the front.



  • Exceptionally compact mounting
  • 12Vdc supply input
  • Drives up to 4 HR motor elements
  • Cable length up to 20m
  • Over current and over voltage protection
Amplifier Specs
  • Power Input:+12VDC ±5% (stabilized)
  • Max Motor Output :280 (70 for MM)Vrms
  • Power Consumption without Load :+12VDC/300 mA
  • Power Consumption with Max load :+12VDC/3.5 A
Environmental Specs
  • Operating Temperature: 0°C to 50°C
  • Storage Temperature: -40°C to 70°C
  • Operating Humidity: Up to 80% non-condensing
Physical & Electrical Specs

Physical Specifications

  • Nominal Mechanical Dimensions (WxDxH):95x81x32.4
  • Mounting options:Desk top/Wall mount

Electrical Specifications

  • Input voltage range: ±10V
  • Input impedance: 10kW
  • Input low pass filter: 2.7 kHz

Additional information


E1, E2, E4