Ultra-Lok (SRL) Self Retracting Lifeline – 50 ft. (15.2m) Galvanized Cable – 3-way retrieval system – Quick-mount-bracket – 3M DBI-SALA 3501102

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  • 50 ft. (15.2m) – 3/16″ (5mm) galvanized steel wire rope
  • Quick-mount bracket – Allows for speedy and simple installation
  • 3-way retrieval SRL for use in confined spaces for retrieval or rescue
  • Thermoplastic housing
  • Reserve lifeline system
  • Twin-disk braking system – Double the stopping power with a backup
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50 ft. (15.2m) of 3/16″ (5mm) galvanized steel wire rope with 3-way emergency retrieval winch, mounting bracket, swiveling snap hook and anchorage carabiner.

  • 3-way emergency retrieval system for rescue in confined spaces
  • Integrated quick-mount bracket for fast and simple installations
  • 50 ft. (15.2m) – of 3/16″ (5mm) galvanized steel cable lifeline
  • Thermoplastic housing is durable, yet lightweight and low-cost
  • Dynamic stainless steel internal components
  • Integrated energy absorption system reduces falling forces to safe levels if needed
  • Anti-ratcheting twin-disk braking system locks the line in event of fall and has backup-system
  • Braking system is constantly moving, SIGNIFICANTLY reduces chance of lockups and snags
  • Reserve lifeline system helps keep excess line tout and out of way

Self-retracting lifelines (SRL's)

An SRL is an alternative to traditional shock absorbing lanyards and work a lot like a seat-beat - pull out slowly and extend the line; but don;t you try to run with it.

These devices are specifically designed for professionals who work way up high - stopping falls within inches to allow great mobility.

Real quick - whats an SRL?
  • Retractable lifelines designed to stop a fall within inches.
  • Constantly under tension, but extends or retracts as the user moves up and down.
  • Offers greater protection then a shock absorbing lanyard.

TL;DR - Self-retracting lifelines connect a harness to an anchor and offers great fall protection than a simple lanyard.


Ultra Lock SRL's are rugged, lightweight & high quality devices you can trust with your life.This long-lasting SRL is a beautiful culmination of stainless steel parts, anti-ratcheting brake system and a semi-sealed design.
All 3M Fall Protection SRL's are backed by decades of experience, research & proven results.
  • Rugged design, semi-sealed for longevity
  • Lightweight thermoplastic housing can take a beating whilst remaining lightweight
  • Stainless steel moving parts products by semi-sealed design
  • Anti-ratcheting twin disk braking system is constantly moving, limiting lock-ups
  • Swiveling anchorage point allows for more flexibility and freedom of movement
  • Snap hook is user friendly, and features an easy-to-read impact indicator for quick inspections
  • Reserve lifeline system
  • Ergonomic handle equipped with 3Mâ„¢ Connected Safety ID (CSID).
  • Includes both INTERNAL & EXTERNAL shock absorbers to reduce falling forces in event of fall. (LE models)

Additional information

Weight22.80 lbs
Dimensions11.5 × 10.5 × 7.2 in
Connection Material

Galvanized steel

Lifeline Material

Galvanized Cable

Hook type to Harness

Snap Hook

Hook type to structure

Anchorage loop

Overall Length

50 ft. (15.2m)


Product Family

SRL Application

For rescue / retrieval

Lanyard Leg Count


SRL housing

Thermoplastic housing


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