3M™ DBI-SALA™ Nano-Lok Twin-Leg Quick Connect Self Retracting Lifeline

SKU: DS-3101275 Category:


Nano-Lok™ is ergonomically designed for ease of use and is ideal for direct connection to most harnesses.

The extremely compact and lightweight design is virtually unnoticeable on your back, staying out of the worker’s way and making it ideal as a lanyard replacement. Whether your application requires single or twin leg configurations, mounting to an overhead anchor, or for connection directly to harness, there are more than 30 models to choose from to suit almost any application.

Nano-Lok™ locks quickly—stopping a fall within inches—providing more protection at low heights. In addition, tension is always kept on the lifeline, which reduces dragging, snapping and trip falls. Both features are key safety improvements.

  • Twin-leg 100% tie-off design
  • Built-in connector for twin-leg SRL direct attachment to harness
    (fixed D-Ring Part# DS-3101271)
  • 6 ft. (1.8m) twin-leg lifelines with 3/4″ (19mm) Dyneema® fiber and polyester web
  • Aluminum self-locking carabiner on each lifeline
  • Extremely compact, lightweight design
  • Tough and impact resistant thermoplastic housing
  • Swiveling anchorage loops
  • Quick activating speed sensing brake systems
  • High capacity external energy absorbers and impact indicators
  • i-Safe™ equipped
  • Wide variety of configurations available
  • SKU: DS-3101275

Additional information

Gate Strength

3, 600 lbs


Harness Mounted

Weight (lbs)


Meets Exceeds

ANSI Z359.14, OSHA 1910.66, OSHA 1926.502, ANSI A10.32


420 lbs. (190 kg)

SRD Length

6 ft. (1.8 m)

SRD Type

Class A

Max Arrest

1, 350 lbs (6.0 kN)

ANSI Compliant NAV


Manufacturer NAV


Industry Type NAV

General Industry

Material Type NAV

3/4" (19mm) wide Dynema polyester web, Twin-Leg Lifeline


Blue w/yellow marker


Class B

SRD Length NAV

6 ft. (1.8m)

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