ebm-papst EC Series Fan Speed Controller for Use with ebm-papst EC 0-10V Speed Controllable Fans, 230 V ac, 2 Speeds

The dual EC fan controller from ebm is a twin fan controller with enclosure compatible for use with EC 0-10V speed controllable fans. The fans can run alternately based on the selected change over period. Potentiometers allow setting of two fan speeds normal and boost. The fan speed are selected by a switched live or volt free contacts.

Two switched live inputs.
Normal and boost speed select.
remote on/off.
Alarm output for fan fail LED's Fan ok/ fault.
LED's Fan1 / Fan2 run.
Duty share/ change over.
3/6/12/24 hour set via DIP switch.
Boost Speed start delay option, three minute fixed timer.
Boost Speed Run-on, selectable 0-50 minutes by potentiometer.
Remote enable Input.