Primary belay device in a fall arrest system - Petzl USA

Primary belay device in a fall arrest system

(EN 353-2: mobile fall arrester including a flexible safety rope)


  • Read the technical notice before viewing the following techniques.
  • It is important to fully understand the information provided in the technical notice before using this complementary information
  • Mastering these techniques requires training.
  • Consult a professional before attempting to perform these techniques on your own.

In a fall arrest system, the worker moves about on the structure.

The ASAP is installed on a safety rope and connected to the A (fall arrest) attachment point of the harness. Its role is to arrest the fall, it should not be used for work positioning.

Under the EN 353-2 standard, the fall arrest system consists of an ASAP and a specified rope.

The Instructions for Use for your ASAP specifies the ropes used in the certification tests for your device. Only these ropes are compatible for use under the EN 353-2 standard.

Primary belay device