3M 3100546 Twin-leg Self-retracting Lifeline 6 Ft

Product Description

The 3M 3100546 is a twin-leg, self-retracting lifeline (SRL) designed for personal fall arrest in industrial work environments. Built around a compact thermoplastic housing, it delivers industrial-strength durability without the bulk of traditional SRL systems. The unit weighs 4.007 pounds, making it practical for extended overhead work. A quick-activating, speed-sensing brake system locks within inches of a fall onset, providing critical protection at low working heights where conventional lanyards often fall short. A licensed safety professional or qualified rigger installs and inspects this device as part of a complete personal fall arrest system.

The 3100546 suits a wide range of industrial applications where fall protection is required at or near grade, on elevated platforms, structural steel, scaffolding, and similar work surfaces. The twin-leg configuration supports 100-percent tie-off compliance when moving between anchor points. The built-in connector allows direct attachment to a compatible full-body harness dorsal or sternal D-ring without additional hardware. The swiveling anchorage loop accommodates overhead anchor connections and reduces cable twist during movement. RFID capability integrates with electronic inventory and inspection management systems, simplifying fleet tracking for safety managers.

Key Features

• Twin-leg design supports 100-percent tie-off during anchor transitions
• Speed-sensing brake system activates within inches to arrest falls at low heights
• Swiveling anchorage loop reduces cable twist under overhead anchor points
• Built-in connector enables direct harness attachment without separate hardware
• RFID-equipped for compatibility with electronic inventory and inspection management systems
• High-capacity external energy absorber with integrated impact indicator signals post-fall inspection need
• Durable thermoplastic housing reduces overall system weight to 4.007 pounds

Compatibility

Designed for direct connection to most full-body harnesses equipped with a standard dorsal or sternal D-ring attachment point, and suitable for use with compatible overhead anchor systems in general industrial fall protection applications.

Installation Notes

Installation and inspection must be performed by a competent person as defined under OSHA 29 CFR 1926.32 and applicable ANSI Z359 standards. Power down or de-energize any adjacent electrical equipment before beginning work at height. Verify the overhead anchor point meets or exceeds the minimum rated load required by the fall arrest system before connecting. After any fall event, remove the unit from service immediately and inspect before returning it to use, as indicated by the built-in impact indicator.

Technical Specifications

• Lifeline Configuration: Twin-Leg
• Lifeline Length: 6 feet
• Housing Material: Thermoplastic
• Energy Absorber: High-capacity external with impact indicator
• RFID: Equipped and compatible with inventory management systems
• Weight: 4.007 pounds
• Unit of Measure: Each
• UPC: 00648250242476

Standard Information

• Brand: 3M
• Manufacturer Part Number: 3100546