3M™ DBI-SALA® Smart Lock Self-Retracting Lifeline, Stainless Cable

Our smartest SRLs yet. From reducing nuisance lockups, to simplifying inspections, every detail of the new 3M™ DBI-SALA® Smart Lock Self-Retracting Lifelines is designed to help increase your productivity, safety and convenience.

Includes: Carabiner


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Self Retracting Lifeline with Rugged and Lightweight Thermoplastic Housing

Using advanced motion capture technology, 3M studied the way users work, move, and interact with SRLs on a typical job site. This data helped us engineer an arrest mechanism designed to better accommodate your natural work motions—resulting in fewer unintentional lockups. The Smart Lock SRL complies with OSHA 1910.140 General Industry Helps protect general industry workers up to 310 lbs. from falls when working with as little as 4 ft. of fall clearance.

Length Options:

20 ft. (3503804)
30 ft. (3503801)
50 ft. (3503823)

Product Highlights

  • Rugged and lightweight thermoplastic housing with built in ergonomic handle
  • 3/16" (5mm) Stainless steel cable lifeline
  • 4ft. fall clearance allows workers up to 310 lbs. to meet OSHA's 1910 general industry rule
  • Patent pending magnetic retraction control system allows lifeline retract smoothly, hands free
  • Swiveling anchorage point and carabiner included
  • Patent pending dual label system located within ergonomic cable handle
  • Swiveling snap hook with impact indicator

3M™ DBI-SALA® Smart Lock Self-Retracting Lifeline, Stainless Cable Specifications *( 1,2 )

Model Number(s):
3503804, 3503801, 3503823
Product Series:
Smart Lock™
Product Category(s):
Cable & Rope SRLs, Mounted SRL, Single-Leg SRL
Length Option(s):
20 ft. (SKU: 3503804)
30 ft. (SKU: 3503801)
50 ft. (SKU: 3503823)
Anchor Hook Material:
Stainless Steel
Swivel Hook
For Use With:
Full Body Harness and Anchor Point
Harness Connection Type:
Housing Material:
Glass-Filled Nylon
Housing Type:
Lifeline Hook Material:
Stainless Steel
Lifeline Material:
Stainless Steel
Stainless Steel Cable, Galvanized Cable
Mounting Type:
Overhead Anchor Point
Product Color:
Recommended Industry:
Mining, Transportation
Specifications Met:
ANSI Z359.7, ISO170025, OSHA
Weight Capacity:
420 lb
Product Weight(s):
11.2 lbs. (SKU: 3503804)
11.8 lbs. (SKU: 3503801)
16.1 lbs. (SKU: 3503823)
UPC / GTIN No(s).:
00840779162659 (SKU: 3503804)
00840779162635 (SKU: 3503801)
00840779162765 (SKU: 3503823)
Manufacturer Part No(s).:
70804492547 (SKU: 3503804)
70804492513 (SKU: 3503801)
70804492596 (SKU: 3503823)
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Smart Lock Self-Retracting Devices User Instruction Manual

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3M™ DBI-SALA® Smart Lock Self-Retracting Lifelines

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