1. In some cases, one must limit the travel range of actuators and these are specified in the note when the green dot is clicked.
2. 'Yellow' may require custom interface adaptor or may include significant performance limitations in terms of travel length, load capacity and etc.
3. For TRA series actuator (TRA6, TRA12, TRA25), only one TRA model is chosen as "Green" in most cases due to the travel length requirement. (eg. TRA6 or TRA25 can still be compatible with 460A-X but not recommended as TRA12 is an ideal choice with its 12mm travel range)