Sealed-Blok (SRL) Self Retracting Lifeline – 50 ft. (15.2m) stainless steel cable – 3-way retrieval winch – Quick-mount bracket – 3M DBI-SALA 3400924

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  • 50 ft. (15.2m) – 3/16″ (5mm) Stainless 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
  • Aluminum/stainless steel housing
  •  4 ft. tie-off adaptor w/ carabiner
  • Twin-disk braking system – Double the stopping power with a backup
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50 ft. (15.2m) of 3/16″ (5mm) Stainless 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) Stainless steel cable lifeline
  • Aluminum/stainless steel housing
  • 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
  • Cable tie-off adaptor x 4 ft. (1.2m) with carabiner

Sealed SRL's

Sealed-Blok SRL's are heavy-duty self retracting lifelines designed for use in the WORST conditions.

Specifically built to withstand saltwater or any other mucky moist location - they are completely sealed to prevent damage to internal components

  • Sealed Design - ensures efficient & safe operation under all working conditions.
  • Secondary Anchorage Point - Allows for second back up anchorage point.
  • Dual RSQ mode - Allows users to select between fall arrest and descent mode
  • Fast-line - Allows for quick lifeline replacement while out in the field

TD;LR - Sealed SRL's are ideal for use in harsh environments where moisture or tiny particulates can damage SRL's internal components.


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.


Additional information

Weight40.70 lbs
Dimensions13.3 × 11.5 × 9.4 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

Aluminum housing


420 lbs. (190 kg)


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