The 3M™ DBI-SALA® Nano-Lok™ Arc Flash Self-Retracting Lifeline is designed for overhead fall protection applications in environments where arc flash exposure may be present. Featuring an 8 ft fire-resistant web lifeline and a high-capacity external energy absorber, it provides reliable fall arrest performance while maintaining a compact and lightweight profile for improved user mobility.

Key Features

Fire-resistant web lifeline: Dyneema® polyester webbing designed for arc flash environments
Quick-activating brake system: Speed-sensing mechanism helps arrest a fall rapidly
Swiveling anchorage loop: Supports alignment and reduces twisting during use
High-capacity external energy absorber: Designed to manage fall arrest forces and includes an impact indicator
Compact and lightweight housing: Nylon thermoplastic construction for durability and reduced bulk
RFID equipped: Compatible with inventory management systems for asset tracking

Intended Use

This self-retracting lifeline is intended for overhead anchorage applications in industrial and construction environments where arc flash hazards may exist and fall protection is required.

Electrical and utility work
Industrial maintenance operations
Energy and power generation facilities
Construction sites
Work-at-height tasks involving arc flash exposure

Product Specifications

Product type: Self-retracting lifeline (SRL)
Model: Nano-Lok™ Arc Flash
Lifeline length: 8 ft
Lifeline material: Fire-resistant web – Dyneema® polyester
Housing material: Nylon thermoplastic
Mounting type: Overhead anchor point
Weight capacity: CSA: 310 lb (140 kg), OSHA: 420 lb (191 kg)

Certifications and Standards

OSHA 29 CFR 1910.140 – U.S. regulation specifying performance and design requirements for personal fall protection systems in general industry
OSHA 1926.502 – U.S. construction standard outlining criteria for fall protection equipment and systems
CSA Z259.2.2 (Class SRL) – Canadian standard defining safety and performance requirements for self-retracting devices used in fall protection systems
ASTM F887 – Standard performance specification for personal climbing equipment for fall protection in arc flash and electrical applications

Available Configurations (Anchorage type / Lifeline hook)

3101541 (7012818698) – Harness steel locking pin (3100064) / Steel snap hook (9502116)
3101548 (7012818702) – Triple-action steel carabiner (2000112) / Steel snap hook (9502116)