Smart Lock Self-Retracting Lifeline 30 ft, Galvanized Cable, Class 1
Using advanced motion capture technology, we studied the forces applied to the SRL during typical at-height tasks. This data helped us engineer a new arrest mechanism that can more easily detect the difference between a fall and normal work motion, tailoring a SRL for your work application.
ANSI Class Level 1; ANSI/ASSP Z359.14-2021; 29 CFR OSHA 1910.140; 29 CFR OSHA 1926.502 Built for overhead service at length, with a sealed drum design engineered for harsh environments and long service life.
Who Needs This Product
For overhead service at length: platforms, tank tops, crane runways, and confined space entries where the anchor lives high and the work runs deep.
Features
Lightweight thermoplastic housing with
Lightweight thermoplastic housing with built in carrying handle.
Swiveling anchorage point and carabiner
Swiveling anchorage point and carabiner included, engineered into this DBI-SALA configuration as standard.
Patent pending dual label system
Patent pending dual label system located within ergonomic cable bumper stop to simplify inspections and reduce the need for replacement.
Swiveling snap hook with impact
Swiveling snap hook with impact indicator, engineered into this DBI-SALA configuration as standard.
RFID located in cable handle
RFID located in cable handle, engineered into this DBI-SALA configuration as standard.
Technical Specifications
| SKU | 3503874 |
|---|---|
| Anchor Connection Type | Carabiner |
| Anchor Hook Material | Zinc Plated Steel |
| Average Arrest Force | 1125 lbf (ANSI); 1125 lbf (OSHA 130 lb - 310 lb) |
| Connected Safety ID Equipped | Yes |
| Harness Connection Hook Material | Zinc Plated Steel |
| Harness Connection Type | Swiveling Snap Hook |
| Housing Material | Glass-Filled Nylon |
| Leg Count | Single-Leg |
| Lifeline Connection Type | Snap Hook |
| Lifeline Hook Material | Zinc Plated Steel |
| Lifeline Length | 30 ft |
| Lifeline Material | Galvanized Steel |
| Maximum Arrest Force | 1500 lbf (ANSI); 1800 lbf (OSHA up to 420 lb); 1350 lbf (OSHA 130 lb - 310 lb) |
| Mounting Type | Overhead Anchor Point |
| Overall Length | 30 ft |
| Product Series | Smart Lock |
| Product Type | Self-Retracting Lifeline- Cable |
| Specifications Met | ANSI Class Level 1; ANSI/ASSP Z359.14-2021; 29 CFR OSHA 1910.140; 29 CFR OSHA 1926.502 |
| Weight | 11.77 lb |
Overhead use only. Anchor per the instruction manual, keep the lifeline path clear, and remove the unit from service after any fall arrest for factory-authorized inspection.
Compliance Standards
ANSI/ASSP Z359.14-2021 Class 1
Certified as a Class 1 self-retracting device under the 2021 standard that replaced the legacy Class A and B designations.
OSHA 1926.502 and 1910.140
Meets OSHA personal fall protection requirements for construction and general industry.
3M Quality
Designed, tested, and certified by 3M Fall Protection, the successor to Capital Safety and the DBI-SALA legacy.
One-Year Warranty
Covered by the 3M Global Product Warranty against factory defects in workmanship and materials.
Typical Applications
Setup Overview
- Inspect the housing, full lifeline payout, impact indicator, and connectors before use.
- Mount the unit to the overhead anchorage per the manual.
- Connect the lifeline hook to the harness dorsal D-ring.
- Check retraction and brake engagement with a sharp pull test per the manual.
- Verify fall clearance below the working surface before entry.
Full use instructions ship with the unit; the instruction manual is linked in the documentation section below.
Inspection and Retirement
Inspect before each use, and have a competent person inspect the unit on a documented schedule per the applicable ANSI standard and the 3M manual.
- Hardware: cracks, distortion, corrosion, and loose fasteners.
- Webbing or lifeline: cuts, frays, burns, abrasion, and chemical damage.
- Connectors: gates close and lock; no distortion at either end.
- Labels: present and legible, with the inspection log current.
- Retraction and brake: smooth payout, positive lock on a sharp pull, and an undeployed impact indicator.
Retirement triggers: any fall arrest event, failed inspection, or damage beyond the limits in the manual.
Fall ProtectionDistributors, LLC Free Tool · No Signup · OSHA 1926.502 Free Interactive Tool Fall Protection Calculator Pick your system. Run the math. Generate a plan. 1Pick Your SystemDetermine fall restraint vs. fall arrest based on your work surface, edge access, and clearance. 2Run the MathCalculate exact fall clearance required below the work surface for your SRL or lanyard setup. 3Generate a PlanGet a printable OSHA-compliant Fall Protection Plan structured around 29 CFR 1926.502(k).
Frequently Asked Questions
DBI-SALA 3503874 Submittals and Documentation
Instruction Manual 5908112 Ansi Smart Lock SRD (PDF)Installation, use, and inspection instructions from 3M. Personal Safety Products Firefighting Notice (PDF)3M notice regarding fluorinated organic compounds. 3503874 Inspection Form (PDF)Printable pass/fail checklist for documented inspections.Compatible and Related Products
- DBI-SALA Sealed-Blok Self Retracting Lifeline Stainless 3400131. Related DBI-SALA product in this line.
Specifying Overhead SRLs for Your Site?
Confirm your setup with us and we will make sure the right equipment ships together, based on the delivery location.
Call 863-703-4522 to talk to a fall protection specialist.
3M DBI-SALA Global Product Warranty
Unless otherwise provided by local laws, 3M fall protection products are warranted against factory defects in workmanship and materials for a period of one year from the date of installation or first use by the original owner.
Limited Remedy: Upon written notice to 3M, 3M will repair or replace any product determined by 3M to have a factory defect in workmanship or materials. 3M reserves the right to require product be returned to its facility for evaluation of warranty claims. This warranty does not cover product damage due to wear, abuse, misuse, damage in transit, failure to maintain the product or other damage beyond 3M's control. 3M will be the sole judge of product condition and warranty options. This warranty applies only to the original purchaser and is the only warranty applicable to 3M's fall protection products.
Limitation of Liability: To the extent permitted by local laws, 3M is not liable for any indirect, incidental, special or consequential damages including, but not limited to loss of profits, in any way related to the products regardless of the legal theory asserted.
The warranty above is made in lieu of all warranties or conditions, express or implied, including the implied warranties or conditions of merchantability or fitness for a particular purpose. Please contact 3M's customer service department in your region for assistance with warranty claims, or reach out to our team at Fall Protection Distributors, LLC and we will help you start the process.
