Choice of carabiner for connecting a fall arrest device to the harness - Petzl USA
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Choice of carabiner for connecting a fall arrest device to the harness

Warnings

  • 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.
Choice of carabiner for connecting a fall arrest device to the harness

Key issues and risks

Fall arrest devices are worn all day without being under tension, but must stop a fall at any time: their connectors must be secure and kept well positioned.

Monitoring during use is difficult, especially when connected to the dorsal point.

The most important risks to consider

The most important risks to consider

Recommendation on carabiner and accessories

Semi-permanent connection

Whenever possible, use a semi-permanent connector that locks with a tool.

RING OPEN


+ Equal strength in all axes (unless loaded over an edge).

+ No weak point like a carabiner's locking sleeve.

Am'D PIN-LOCK + STRING


+ Can be opened with a generic tool (point), no specific wrench needed.



Frequent attachment

If your equipment must be frequently attached, use an Am’D TRIACT-LOCK or Am’D BALL-LOCK with a STRING positioning system.

Am'D TRIACT-LOCK


+ Can be opened with a generic tool (point), no specific wrench needed.

Am'D BALL-LOCK


+ Can be opened with a generic tool (point), no specific wrench needed.

Information

Why this choice?

The risk of the locking sleeve rubbing and pressing against the harness attachment point cannot be reduced. Thus the choice must be for the strongest possible locking system.

It is important to optimize the connector's position so that it moves into proper position in a fall.

All Petzl energy absorbers are supplied with a STRING that must be used consistently.



Note: the CAPTIV bar may be used in place of the STRING. It prevents certain wrong positions, but dœs not offer the sling protection provided by the STRING.



Specific case of attachment to the dorsal point

Monitoring the carabiner during use is especially difficult when the fall arrest device is connected to the dorsal point.

In this case, the use of a RING OPEN is especially recommended.

Precautions for use

Precautions for use
  • Take every precaution when making the connection to the harness:

    - analyze the situation to anticipate risks (for example moving through tight places that can cause rubbing on the carabiners)

    - verify that the carabiners are correctly positioned and locked before using the system
  • With an auto-locking carabiner, check at each opening and closing that the sleeve is completely locked.
  • If possible, before and during work, schedule some equipment inspection sessions with your co-workers to compensate for the lack of monitoring during use.



Notes

- The SL system is not recommended for this application

- The use of a carabiner with the TL or BL system without a carabiner positioning system is not recommended for this application

- A quick link that is tightened with a tool can be used; choose a shape suitable for the attachment points


Technical tips