Actuators of the SA type range for open-close duty and positioning duty are rated for class A and B or types of duty S2 – 15 min. A special version for longer running is available for the S2 – 30 min duty.

The modulating actuators of the SAR range are rated for class C or types of duty S4 – 25 %. Special versions for S4 – 50 % and S5 – 25 % are also available.

Actuators of type range SA/SAR can be combined with various controls from simple OPEN-CLOSE control to the micro-controlled version with logging of operating data or fieldbus interface.