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3M DBI-SALA Nano-Lok Edge Twin-Leg Self-Retracting Lifeline, 8 ft (3500276)
$509.99
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EDITORIAL REVIEW: 4.5/5 WC Safety Review — 3M DBI-SALA 3500276 Nano-Lok Edge Twin-Leg Self-Retracting Lifeline, 8 ft Editorial assessment by the WC Safety Editorial Team, based on published 3M specifications and c...
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EDITORIAL REVIEW: 4.5/5 WC Safety Review — 3M DBI-SALA 3500276 Nano-Lok Edge Twin-Leg Self-Retracting Lifeline, 8 ft
Editorial assessment by the WC Safety Editorial Team, based on published 3M specifications and category fit. We did not laboratory-test this product.
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3M DBI-SALA Nano-Lok Edge Twin-Leg Self-Retracting Lifeline, 8 ft (3500276) Overview
The 3M DBI-SALA 3500276 Nano-Lok Edge Twin-Leg Self-Retracting Lifeline is an 8 ft dual-leg SRL built for fall protection work where a leading edge is present and the worker needs to move without ever unhooking. The twin-leg design gives you 100% tie-off: as you reposition, one leg stays connected to an anchor point while you move the second, so you are never disconnected at height.
This is a connecting device within a complete personal fall arrest system. Under OSHA 1926.502 and 1910.140, a compliant system requires a full-body harness (never a body belt), a connecting subsystem such as this SRL or a shock-absorbing lanyard, and an anchorage that meets the regulation's strength criteria. The Nano-Lok Edge clips to the dorsal D-ring of your harness and its leg legs connect to overhead or foot-level anchorage as designed for the device.
Because the unit is rated for sharp/leading-edge applications, it is engineered to arrest a fall over an edge — the scenario standard non-edge SRLs and many lanyards are not built for. Always confirm the model's labeled capacity, free-fall and clearance requirements, and edge rating on the product markings before each use. Compare it against single-leg options in the self retracting lifelines range to match the connection style to your task.
Important: any SRL, harness, or lanyard that has arrested a fall must be removed from service and retired immediately. Do not return shock-loaded fall-arrest equipment to use.
What It Is Built For
| Use case | Fit | Buyer guidance |
|---|---|---|
| Moving between anchor points at height without disconnecting | Excellent | The twin-leg layout is purpose-built for 100% tie-off — clip the free leg before releasing the connected one. |
| Work over sharp or leading edges (steel deck, roof edge, formwork) | Excellent | This model carries a leading-edge rating; verify the edge marking on the label and the required clearance below the edge. |
| Connecting to the dorsal D-ring of a full-body harness | Excellent | Pair with a compatible full-body harness; the SRL attaches at the dorsal D-ring per the device instructions. |
| Stationary single-point overhead tie-off | Limited | A single-leg Nano-Lok Edge is lighter and lower-cost when continuous mobility isn't needed. |
| Use as a body belt or positioning belt | Not suitable | Belts are prohibited for fall arrest under OSHA — fall arrest requires a full-body harness. |
| Reuse after a fall has been arrested | Not suitable | Any component that arrests a fall must be retired from service and replaced. |
Fall protection is life-safety equipment. A personal fall arrest system must limit free fall and arrest forces under OSHA 1926.502 / 1910.140 and ANSI Z359: use a full-body harness (never a body belt for fall arrest) with a compatible shock-absorbing lanyard or self-retracting lifeline and an anchorage rated 5,000 lb per worker (or engineered to a 2:1 safety factor). Inspect every component before each use, immediately retire anything that has arrested a fall or shows damage, and work to a documented rescue plan. Browse fall protection and full-body harnesses.
Pros & Cons
Pros
- Twin-leg design delivers 100% tie-off so the worker stays connected while repositioning
- Rated for leading-edge applications where standard SRLs are not suitable
- Compact 8 ft Nano-Lok platform is lighter than traditional cable SRLs
- Connects to a full-body harness dorsal D-ring for OSHA-compliant personal fall arrest
- Backed by the established 3M DBI-SALA fall-protection line
Cons
- Must be removed from service permanently after arresting a fall
- Requires a separate full-body harness and rated anchorage to form a complete system
- Twin-leg unit is heavier and costlier than a single-leg SRL when 100% tie-off isn't required
- Edge rating, clearance, and capacity must be verified on the label for each application
How It Compares
All three are 3M DBI-SALA Nano-Lok Edge 8 ft self-retracting lifelines built for leading-edge work. The 3500276 is the twin-leg unit; the 3500248 and 3500295 are single-leg siblings. Choose the twin-leg when you need 100% tie-off while moving between anchors; choose a single-leg for stationary single-point tie-off. Browse the full range under self retracting lifelines.
| Model | Configuration | Length | Best for |
|---|---|---|---|
| 3500276 (this item) | Twin-leg | 8 ft | 100% tie-off while repositioning over edges |
| 3500248 | Single-leg | 8 ft | Single-point leading-edge tie-off |
| 3500295 | Single-leg | 8 ft | Single-point leading-edge tie-off |
Specifications
| Brand | 3M DBI-SALA |
| Model | 3500276 |
| Product Type | Self-retracting lifeline (SRL) |
| Configuration | Twin-leg (dual-leg) for 100% tie-off |
| Lifeline Length | 8 ft |
| Series | Nano-Lok Edge |
| Edge Rating | Leading-edge rated (verify on label) |
| Connection | Full-body harness dorsal D-ring |
| ASIN | B0CGT6TL5T |
Related Resources
fall protection full body harnesses lanyards self retracting lifelines
Frequently Asked Questions
What does the twin-leg design on the 3500276 do?
It provides two independent lifeline legs so you maintain 100% tie-off. You connect the free leg to the next anchor before releasing the first, staying continuously attached while you move at height. See the full range of self retracting lifelines.
Is the Nano-Lok Edge 3500276 rated for leading or sharp edges?
Yes, the Nano-Lok Edge line is engineered for leading-edge applications. Confirm the edge rating and required clearance on the product label before use, since standard non-edge SRLs and many lanyards are not built to arrest a fall over an edge.
Do I need a harness to use this SRL?
Yes. This is a connecting device only. A complete personal fall arrest system requires a full body harness, never a body belt, plus this SRL and a rated anchorage.
How long is the lifeline?
This model is 8 ft. Verify the labeled length, free-fall, and clearance requirements for your specific setup before each use.
Where does the SRL connect on my harness?
The SRL attaches to the dorsal (back) D-ring of a full-body harness per the device instructions. Match it with a compatible harness from our full body harnesses selection.
Can I reuse this SRL after it stops a fall?
No. Any fall-arrest component that has arrested a fall must be removed from service permanently and replaced. Do not return shock-loaded equipment to use.
What's the difference between the 3500276 and the single-leg 3500248?
The 3500276 is twin-leg for 100% tie-off while repositioning; the 3500248 is a single-leg unit for single-point tie-off. Both are 8 ft Nano-Lok Edge SRLs. Compare them in self retracting lifelines.
Is a body belt acceptable instead of a harness?
No. OSHA prohibits body belts for fall arrest. Fall arrest requires a full-body harness, which you can shop under fall protection.
What anchorage do I need for this SRL?
Your anchorage must meet the strength criteria in OSHA 1926.502 for the connection style used. Follow the device instructions for overhead versus foot-level anchorage and the corresponding clearance.
When should I choose this over a shock-absorbing lanyard?
Choose the SRL when you want a retracting line that minimizes slack and free-fall distance, especially over edges. A shock-absorbing option from our lanyards range may suit fixed-position work with adequate clearance.
How often should I inspect this SRL?
Inspect before every use for damage, corrosion, and proper retraction and locking, and have it formally inspected on the schedule in the manufacturer instructions and your fall-protection program. Retire it if it fails any check or has arrested a fall.
Does WC Safety sell this through Amazon?
Yes. WC Safety is an Amazon affiliate, so this 3M DBI-SALA 3500276 links out to Amazon for purchase and fulfillment. Browse related gear in our fall protection collection.
Written by Steven Eaton, WC Safety Editorial. Specifications sourced from 3M published data. Compare the range in full-body harnesses.
WC Safety is an independent PPE retailer and Amazon Associate; no paid placement. Match the product to your specific hazard and follow your site PPE program.
Brand / Vendor
3M
Model / SKU
3500276
Product Type
Self-Retracting Lifelines
Price
$509.99 (Amazon)
Rating
5.0 / 5 — 1 reviews
Availability
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★★★★★4.9 / 5· 8 ratings on Amazon
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