3504551 – Ultra-Lok RSQ (SRL) Self Retracting Lifeline – 50 ft. (15.2m) – Stainless steel cable lifeline w/ steel snap hook – Rescue (RSQ) Dual-mode – Single leg – Anchorage loop for mounting
$1,824.00 + Free Shipping
Attention: Product has a 5 day leadtime and is expected to ship in 5 business days.
- 50 ft. (15.2m) – 3/16″ (5mm) Stainless steel wire rope
- Swiveling anchorage point – for mounting SRL
- Stainless steel snap hook connects to harness
- Internal energy absorber
- Equipped with 3Mâ„¢ Connected Safety ID (CSID)
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50 ft. (15.2m) of 3/16″ (5mm) Stainless steel wire rope with swivel snap hook and RSQâ„¢ dual-mode.
- Single leg – 50 ft. (15.2m) of 3/16″ (5mm) Stainless steel wire rope
- RSQâ„¢ dual-mode: Rescue or Fall arrest mode
- Stainless steel snap hook on end of lifeline for attachment to support structure.
- Swiveling anchorage loop for SRL mounting.
- Reserve lifeline system.
- Energy absorber saves lives by absorbing deadly falling forces.
- Long lasting – Semi-sealed design protects moving parts from grime, dirt & sludge.
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.
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RSQ Self-retracting Lifelines
Dual-mode RSQ models allow crews to choose between fall arrest, self-rescue or whatever is most appropriate for the application.

Fall Arrest Mode - A speed sensing break stops the fall, reducing the falling forces to safe levels.

Descent Mode - Brakes to stop the fall, then instantly a centrifugal brake activates and safety lowers the user to solid ground.
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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)
Resources
Additional information
Mpn | 3504551 |
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Weight | 19.05 lbs |
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Dimensions | 10.5 × 6.9 × 3.10 in |
Connection Material | Galvanized steel |
Lifeline Material | Stainless steel cable |
Hook type to Harness | Snap Hook |
Hook type to structure | Anchorage loop |
Overall Length | 50 ft. (15.2m) |
Brand | |
Product Family | |
SRL Application | For vertical use |
Lanyard Leg Count | Single-leg |
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