3M™ DBI-SALA® Ultra-Lok™ Self Retracting Lifeline, Cable, Snap Hook

30 ft. (9.1m) of 3/16" (5mm) galvanized steel wire rope with swivel snap hook.
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Self Retracting Lifeline with Rugged and Extremely Lightweight Thermoplastic Housing

3M's Ultra Lok™ series of self-retracting lifelines (SRL's) are robust and extremely lightweight devices that are precision engineered for safety, performance, and comfort that you can rely on. The Ultra Lok™ system is built to last with a semi-sealed design, an anti ratcheting brake system, and stainless steel components.

3M's SRLs are backed by decades of dependable service in the field for absolute confidence, safety, and reliability. An SRL lifeline will extend as the user moves away and automatically retract as they return. This flexibility allows the user to move within a limited safe working range at normal speeds. When a fall occurs, a speed sensing brake system activates to restrict both the fall and the forces exerted on the user.

Length Options:

30 ft. (3504430)
50 ft. (3504450)
85 ft. (3504485)

Product Highlights

  • 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

3M™ DBI-SALA® Ultra-Lok™ Self Retracting Lifeline, Cable, Snap Hook Specifications *( 1,2 )

Model Number(s):
3504430, 3504450, 3504485
Product Series:
Product Category(s):
Cable & Rope SRLs, Mounted SRL, Single-Leg SRL
Length Option(s):
30 ft. (SKU: 3504430)
50 ft. (SKU: 3504450)
85 ft. (SKU: 3504485)
Harness Connection Type:
Housing Material:
Urethane Thermoplatic
Lifeline Hook Material:
Zinc Plated Steel
Lifeline Material:
Galvanized Cable
Galvanized Cable
Mounting Type:
Block to Anchor Point
Recommended Industry:
Transportation, General Industrial
Specifications Met:
OSHA 1910.66, OSHA 1926.502
Weight Capacity:
310 lbs. (141 kg)
Product Weight(s):
11.3 lbs. (SKU: 3504430)
16.4 lbs. (SKU: 3504450)
33.5 lbs. (SKU: 3504485)
UPC / GTIN No(s).:
00648250166222 (SKU: 3504430)
00840779000883 (SKU: 3504450)
00648250163054 (SKU: 3504485)
Manufacturer Part No(s).:
70007456570 (SKU: 3504430)
70007456729 (SKU: 3504450)
70007456877 (SKU: 3504485)
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Safety Requirements for Self-Retracting Devices for Personal Fall Arrest and Rescue Systems

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ANSI-z359-14 SRL Supplement (Español)

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Self Retracting Devices Inspection and Servicing Guidelines

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