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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About this product

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)


  • 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 )

Product Series:
Smart Lock
Product Type:
Self-Retracting Lifeline- Cable
Model Number(s):
3503801, 3503804, 3503823
Length Options:
30 ft. (3503801)
20 ft. (3503804)
50 ft. (3503823)
Anchor Hook Material:
Stainless Steel
Swivel Hook
23.5" x 9" x 4"
Swiveling Anchorage
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 Length(s) (Imperial):
30 ft,20 ft,50 ft
Lifeline Length(s) (Metric):
9.14 m,6.1 m,15.2 m
Lifeline Material:
Stainless Steel
Stainless Steel Cable
Mounting Type:
Overhead Anchor Point
Product Color:
Recommended Application:
Recommended Industry:
CSA Z259.2.2
Weight Capacity:
420 lb
Product Weight (Imperial):
11.82 lb.,11.23 lb.,16.11 lb.
UPC / GTIN Nos.:
00840779162635 ( SKU: 3503801)
00840779162659 ( SKU: 3503804)
00840779162765 ( SKU: 3503823)

Product Specification Disclaimer*( 1,2 )

*1. Manufacturers specifications are supplied by the manufacturer and are subject to change without notice. The data and information contained in these specification sheets are representative; the ratings supplied are suggested as guidelines and should only be used for evaluating your specific application.

**2. Although Reliable Electric Products Company Inc. has made every effort to ensure the accuracy of information by third parties, it is ultimately the customer’s responsibility to validate these specifications to ensure they are suitable for SAFE use in a particular application. Reliable Electric Products Company Inc. disclaims to the extent permitted by law, any warranty or liability.

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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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