3M Ultra-Lok 20ft., 30ft. & 50ft. Galvanized Self-Retracting Lifeline

3M Ultra-Lok 20ft., 30ft. & 50ft. Galvanized Self-Retracting Lifeline

20ft. (6.1m), 30ft. (9.1m) and 50ft. (15.2m) of 3/16″ (5mm) galvanized steel wire rope with swivel snap hook.


Ultra-Lok™ self retracting lifelines (SRL’s) are rugged, yet extremely lightweight and superbly engineered devices you can count on for safety, efficiency and comfort. Stainless steel components, an anti-ratcheting brake system and a semi-sealed design provide the user with a system built to last. Our SRLs are backed by decades of proven field service for absolute confidence, safety and reliability.

An SRL’s lifeline will extend as the user moves away, and retract automatically enabling the user to move about within a recommended working area at normal speeds. Should a fall occur, a speed sensing brake system will activate stopping the fall and reducing the forces imposed on the user to safe levels.

Features & Benefits:

  • Rugged and extremely lightweight thermoplastic housing
  • Semi-sealed design
  • 3/16″ (5mm) galvanized steel cable lifeline
  • Stainless steel dynamic components
  • Internal energy absorption system
  • Anti-ratcheting twin disk brake system
  • Constant moving brake system pawls
  • Swiveling anchorage point
  • Swiveling snap hook with impact indicator
  • Reserve lifeline system
  • Ergonomic cable handle equipped with i-Safe
Case Quantity
Housing Material
Urethane Thermoplastic
Housing Type
iSafe Equipped
20ft. (6.1m), 30ft. (9.1m) and 50ft. (15.2m)
Lifeline Hook Material
Zinc Plated Steel
Lifeline Material
Galvanized Steel Cable
Mounting Type
Block to Anchor Point
Product Series
Product Type
Self Retracting Lifeline – Cable
Recommended Industry
Construction, General Industrial, Mining, Oil & Gas, Transportation, Utilities, Wind Energy
ANSI A10.32, ANSI Z359.1, ANSI Z359.14, OSHA 1910.66, OSHA 1926.502
9 lb.
Weight Capacity
310 lbs. (141 kg)
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