Locking by Spring Force / Hydraulic Releasing SITEMA - Locking Unit KFHL Technical Data Sheet TI-F52-EN-03/2010 SITEMA GmbH & Co.KG . Im Mittelfeld 10 . D-76135 Karlsruhe . Phone: +49(0)721/98661-0 . Fax: -11 . www.sitema.com 3/5 Choosing the right size The admissible load M is stated for all types in the pages before. During normal conditions (vertical movement), the criteria load is to be maintained. The holding (braking) force is not less than 2 x M, but will not exceed 3,5 x M. The fixing elements which accept the load must therefore be dimensioned for a 3.5 x M force. This maximum force...

Locking by Spring Force / Hydraulic Releasing SITEMA - Locking Unit KFHL Technical Data Sheet TI-F52-EN-03/2010 SITEMA GmbH & Co.KG . Im Mittelfeld 10 . D-76135 Karlsruhe . Phone: +49(0)721/98661-0 . Fax: -11 . www.sitema.com 4/5 Monitoring by proximity switches The proximity switch 1 „Load secured“ signals the secure state and is used to authorise entrance to the danger area. Switch 2 „released“ is used to activate the downward movement of the drive. For automatic detection of failures both signals are compared. In case both switches indicate the same state - apart from minor overlapping periods...

Type Approval Certificate SITEMA - Locking Unit KFHL Technical Data Sheet TI-F52-EN-03/2010 SITEMA GmbH & Co.KG . Im Mittelfeld 10 . D-76135 Karlsruhe . Phone: +49(0)721/98661-0 . Fax: -11 . www.sitema.com 5/5