The 3M™ DBI-SALA® Nano-Lok™ Arc Flash Self-Retracting Lifeline (3101541) is a compact, lightweight fall protection device designed for direct connection to a full-body harness in arc flash–exposed environments. Featuring an 8 ft (2.4 m) fire-resistant web lifeline and a quick-connect interface, this SRL provides fast-acting fall arrest performance while maintaining worker mobility at height. Its durable thermoplastic housing, swiveling anchorage loop, and integrated energy absorber help reduce arrest forces, making it an effective solution for low-clearance applications where rapid lock-up and reliability are critical.

Key Features

Quick-Connect Harness Attachment: Built-in connector allows direct attachment to the harness back D-ring without additional hardware.
Fast-Acting Speed-Sensing Brake: Locks quickly to stop a fall within inches, improving protection in low-height applications.
Fire-Resistant Web Lifeline: Designed for arc flash environments while maintaining flexibility and durability.
Compact & Lightweight Design: Minimizes bulk and user fatigue during extended wear.
High-Capacity Energy Absorber: External energy absorber with impact indicator helps limit arrest forces on the user.
Swiveling Anchorage Loop: Reduces lifeline twisting and improves freedom of movement.
RFID-Enabled Identification: Compatible with connected safety and inventory management systems for easier tracking.

Intended Use

This self-retracting lifeline is designed for workers who require reliable fall protection with minimal fall clearance, particularly when connecting directly to a harness in arc flash–exposed tasks. Its compact form factor supports mobility while maintaining compliance with CSA requirements.

Electricians and utility workers
Maintenance and facility technicians
Construction and industrial trades
Oil & gas and general industrial operations
Tasks such as ladder climbing, equipment maintenance, electrical work, assembly, and machine operations

Product Specifications

Manufacturer Product Number: 3101541
3M ID: 7012818698
Product Type: Arc Flash Quick Connect Self-Retracting Lifeline
Product Series: Nano-Lok™
Lifeline Length: 8 ft (2.4 m)
Lifeline Material: Fire-resistant web
Mounting Type: Direct to harness back
Housing Material: Nylon thermoplastic
Lifeline Hook Material: Zinc-plated steel
Connected Safety ID Equipped: Yes (RFID)
Dimensions: 19.99 × 4.25 × 2.04 in
Weight: 3.2 lb
Weight Capacity: 420 lb (190 kg)

Certifications and Standards

CSA Z259.2.2 – Self-Retracting Devices
Capital Safety General Manufacturing Requirements