Engineered to deliver dependable fall protection in the most demanding construction environments, the 3M™ DBI-SALA® Nano-Lok™ Edge Self-Retracting Lifeline offers Class 2 performance for foot-level tie-off and leading edge scenarios. This compact SRL is specifically designed for direct attachment to the back of a safety harness, allowing for a secure connection that minimizes lifeline drag and potential trip hazards. The model’s lightweight profile and ergonomic form stay out of the way while in use, supporting both worker mobility and all-day comfort on the job.

An ideal choice for low-height fall risks, this lifeline activates quickly to arrest falls within inches. The integrated external energy absorber and impact indicator provide additional assurance that the device performs effectively during sudden load events. RFID technology is included to simplify equipment tracking and inspection, making this model a robust solution for dynamic and safety-focused worksites.

Key Features

Leading Edge Rated: Approved for ANSI Class 2 foot-level tie-off and leading edge use.
Compact, Lightweight Design: Ergonomic thermoplastic housing minimizes bulk for comfort and mobility.
Quick Activation: Speed sensing brake system halts falls in minimal distance for low-height protection.
Integrated Connection: Built-in quick-connect allows direct attachment to the harness back D-ring.
External Energy Absorber: High-capacity design helps reduce fall forces and includes visual impact indicator.
RFID Enabled: Compatible with 3M™ inspection and asset management systems.
Durable Build: Galvanized cable lifeline with corrosion-resistant aluminum and steel hardware.
Aluminum Captive Eye Carabiner: Allows secure and specific attachment to anchor points.

Intended Use

This Nano-Lok™ Edge model is best suited for:

Construction
General Industrial
Oil & Gas

Scenarios with Direct-to-Harness Needs: Applications that benefit from an SRL directly mounted on the user’s back D-ring.
Low-Fall-Clearance Environments: Designed to stop falls quickly when overhead anchorage is not available.

Product Specifications

Configuration: Single-leg
Lifeline Type: Galvanized steel cable
Lifeline Length: 8 ft (2.4 m)
Housing Material: Thermoplastic
Mounting Type: Direct to back D-ring on harness
Lifeline Hook: Aluminum captive eye carabiner
Weight Capacity: 310 lbs (141 kg)
Product Weight: 3.6 lb
Part Number: 3500221

Certifications and Standards

CSA Z259.2.2 Type 1
Capital Safety General Manufacturing Requirement
Meets ANSI Class 2 (Leading Edge Rated)