3M™ DBI-SALA® Smart Lock Self-Retracting Lifeline.

Self-retracting lifelines

When there’s nothing between you and the ground, you need a reliable, advanced self-retracting lifeline (SRL) to have your back – every time.

Once anchored, our SRLs extend and retract automatically, letting users move comfortably within an area while keeping lifeline tension to help reduce tripping, dragging and trip falls. Should a fall occur, a speed-sensing brake activates, arresting the fall. Various styles, configurations and lengths are available to suit almost any need.

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Types of self-retracting lifelines (SRL)

Whether your application requires single or twin-leg configurations, mounting to an overhead anchor, leading edge applications or for connection directly to the harness, there are numerous models available for nearly every application. Our shared goal is to bring you home safely at the end of the workday and we want to make sure you’re comfortable so you can get the job done.


    • Anchors overhead and extends and retracts automatically



    • Incorporates a patented concept that separates all dynamic components from foreign elements such as grease, moisture and dirt



    • The RSQ™ Dual-Mode design allows the user to select between fall arrest mode and descent mode
    • Two-in-one operation lowers the cost of ownership by reducing the need for separate rescue equipment



    • Built-in emergency retrieval makes it ideal for confined space rescue
    • Available with and without mounting brackets, making attachment to a tripod or davit rescue support structure fast and easy



    • Kevlar®/Nomex® lifelines offer the ultimate in spark, fire resistance and electrical conductivity for utility, welding, cutting and torching applications



    • Larger diameter cable and an in-line shock absorber to handle added abrasion demands



    • Ideal for direct connection to most harnesses
    • Virtually unnoticeable on your back because of their extremely compact size
    • Available in single-leg or twin-leg


Installation videos