The 4Q speed controller with current limitation from EPH Elektronik is a highly developed passive component designed for precise speed control in various applications. It allows the setpoint for the speed to be specified either via a 10 kΩ potentiometer or through external voltages in the range of 0 to 5 V/DC or 0 to 10 V/DC, with the selection made via a jumper. The controller supports a maximum supply voltage of 12/24 V/DC, also selectable via a jumper. Another outstanding feature is the adjustable current limitation, which ensures safe and efficient use of the device. The feedback of the supply voltage is achieved through an EMF with I x R compensation, enhancing the stability and performance of the system. This speed controller is ideal for applications that require precise and reliable control.

• Adjustable current limitation for increased safety
• Setpoint for speed specified via potentiometer or external voltage
• Maximum supply voltage of 12/24 V/DC selectable
• EMF supply voltage feedback with I x R compensation.