Ex protection and Functional Safety in one device. Kuebler absolute singleturn encoders 7053FS3 of the Sendix SIL family are suited for use in safety-related applications up to SIL3 acc. to EN 61800-5-2 or PLe to EN ISO 13849-1. In addition, these devices ensure Ex protection in a compact 70 mm housing out of seawater durable aluminium.