Built for high-risk environments where every inch counts, the 3M™ DBI-SALA® Nano-Lok™ Edge Self-Retracting Lifeline series is tailored for ANSI Class 2 foot-level tie-off and leading edge applications. Designed to enhance worker mobility and reduce fall distances, these compact SRLs offer direct harness connectivity and help prevent trip hazards with a low-profile, tension-maintained lifeline. Whether choosing a single-leg or twin-leg configuration, each variation is engineered for maximum safety in construction, general industry, and oil and gas sectors. Rugged yet lightweight, these SRLs incorporate a durable thermoplastic housing, external energy absorber, and RFID tracking, making them an indispensable asset for height work professionals.

Key Features

Leading Edge Certified: Rated for foot-level tie-off and sharp-edge applications, meeting CSA Z259.2.2 Type 1 standards.
Quick-Stop Safety: Speed-sensing brake system activates rapidly to minimize fall distance.
Compact, Low-Profile Design: Stays out of the way and ideal as a lanyard replacement.
Direct Harness Mount: Integrated quick-connect interface for direct connection to the harness D-ring.
Impact Indicator + Energy Absorber: Allows for visual inspection and efficient energy dissipation in the event of a fall.
Thermoplastic Housing: Lightweight and resilient for long-term performance.
RFID Equipped: Simplifies inspection tracking and inventory management.
Available in Multiple Hook Configurations: Options include steel snap hooks or aluminum rebar hooks, depending on model.

Intended Use

The Nano-Lok™ Edge SRLs are purpose-built for demanding work environments where fall hazards are unavoidable—especially at low heights. Ideal for trades that operate near unprotected edges, platforms, or leading edge structures, such as roofing, steel erection, scaffolding, or oil rig maintenance. Each model accommodates either overhead or direct harness connections, making them versatile tools for both mobile and stationary work situations.

Product Specifications

Common Features for All Models (3500217, 3500218, 3500232, 3500233):

Lifeline Length: 8 ft (2.4 m)
Lifeline Material: Galvanized Cable
Mounting Type: Direct to harness back
Housing Material: Nylon thermoplastic
Weight Capacity: 310 lbs (141 kg)
Applications: Foot-level tie-off and leading edge use
Design: Compact housing with quick-activating speed sensing brake, external energy absorber, and impact indicator

Model-Specific Details:

3500217: Single-leg | Steel snap hook | Weight ~4.0 lb
3500218: Single-leg | Swivel snap hook | Weight ~4.2 lb
3500232: Twin-leg | Steel snap hooks | Weight ~7.1 lb
3500233: Twin-leg | Swivel snap hook| Weight ~7.2 lb

Certifications and Standards

CSA Z259.2.2 Type 1
Capital Safety General Manufacturing Requirements
ANSI Class 2 Foot-Level Tie-Off
Meets OSHA requirements for leading edge use