Petzl Wire Lock Carabiner


Carabiner for JOKO progression lanyard

The VERTIGO WIRE-LOCK carabiner is designed for use on the ends of JOKO lanyards. The excellent grip and the WIRE-LOCK automatic locking system facilitate handling when passing intermediate anchors. The wide opening and the Keylock system allow the carabiner to be easily connected to the cable. The WIRE-LOCK system also increases the lifetime of the product when used intensively.

SKU: M40A WLU Category:


  • Designed for use on the ends of JOKO lanyards
  • Facilitates handling when passing intermediate anchors:- ergonomic shape for excellent grip

    – WIRE-LOCK automatic locking system is easy to use

    – large opening for easy connection of carabiner to cable

    – Keylock system to avoid any involuntary snagging of the carabiner

  • Construction suited for intensive use:- WIRE-LOCK locking optimizes the number of opening and closing cycles of the gate and increases longevity of the carabiner

    – H-shaped cross-section protects markings from abrasion

  • Easier for the operator:- compatible with TRAC and TRAC PLUS pulleys and JOKO lanyards


  • Material(s): aluminum, stainless steel, nylon
  • Certification(s): CE EN 12275 types K/B, UIAA


References M40A WLU
Locking system WIRE-LOCK
Sold individually
Weight 95 g
Major axis strength 25 kN
Minor axis strength 10 kN
Open gate strength 8 kN
Gate opening 24 mm
Guarantee 3 years
Inner Pack Count 1



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