The new units have larger ball bearings with a higher dynamic load rating, so they are less affected by wear and damage during prolonged heavy use. Huebner has also expanded the range of available interfaces. Now, there is a parallel output additionally to familiar interface types such as Profibus, Profinet, Devicenet, Ethercat and SSI. Parallel outputs facilitate rapid information transfers as data can be communicated via connections that run parallel to each other.

In addition, series 41 comes with SIL3 / PLe safety certification in accordance with the IEC 61508 / EN 13849 standards.

The series 40 is available in two versions. One has a solid shaft (11 or 14mm in diameter) for mounting the encoder using a coupling, the other has a hollow shaft (20mm in diameter) for direct mounting of the encoder on the drive shaft.