The 3M DBI-SALA® Nano-Lok™ Extended Length Self-Retracting Lifeline with web lifeline is designed to help improve fall protection while supporting worker mobility in demanding environments. Its impact-resistant housing is built to withstand harsh jobsite conditions, while the speed-sensing brake system limits fall clearance to as low as 6 ft (2 m). Equipped with a swiveling anchorage loop to reduce lifeline twist and an integrated impact indicator for post-fall inspection, this extended-length SRL delivers reliable performance for work-at-height applications.

Key Features

Extended-length web lifeline: Provides increased working range while maintaining controlled retraction.
Speed-sensing brake system: Limits required fall clearance to as low as 6 ft (2 m).
Impact-resistant housing: Tough thermoplastic construction designed for demanding worksites.
Swiveling anchorage loop: Helps reduce lifeline twisting for smooth, consistent operation.
Integrated impact indicator: Provides a visual alert if the SRL has been involved in a fall.
Multiple harness connection options: Available with different self-locking snap hook configurations.
High-capacity external energy absorber: Engineered to manage and dissipate fall arrest forces effectively.

Intended Use

This self-retracting lifeline is intended for fall protection applications where extended working length, controlled fall clearance, and reliable overhead anchorage performance are required. It is designed for use with compatible personal fall protection systems and appropriate anchorage points.

Construction sites
Industrial maintenance
Manufacturing facilities
Utilities and infrastructure work
General work-at-height operations

Product Specifications

Lifeline length: 20 ft
Mounting Type : Overhead Anchor Point
Lifeline material: Dyneema® polyester web
Housing material: Nylon thermoplastic
Weight capacity: CSA: 310 lb (140 kg), OSHA: 420 lb (191 kg)
Anchor connection type: Triple action steel carabiner (2000112)

Lifeline hook options:

3103874 (7012818811): Steel self-locking snap hook (9502116)
3103875 (7012818812): Stainless steel swivel self-locking snap hook (2100045)
3103876 (7012818813): Steel swivel self-locking snap hook (9502195)


Certifications and Standards

CSA Z259.2.2-17: Meets Canadian requirements for self-retracting devices used in fall protection systems.
OSHA 1926.502: Complies with OSHA construction industry fall protection requirements.
OSHA 1910.140: Meets OSHA general industry fall protection regulations.