Retractable Lanyards

Retractable lanyards (SRLs)

Self-retracting lifelines — also called inertia reels or fall-arrest blocks — are sealed devices that pay out a webbing or cable line as the user moves, then retract it under spring tension to maintain a tight line. Under sudden acceleration (a fall), an internal clutch locks the reel and arrests the fall within a much shorter distance than a shock-absorbing lanyard. Typical free-fall distance is 0.3–0.6 m, compared with 2 m+ for a lanyard — making SRLs the right choice wherever clearance below the user is limited.

When to use an SRL vs shock-absorbing lanyard

• Low roofs, scissor-lifts, elevated platforms, mezzanines — any work where clearance below the user is less than 6.5 m needs an SRL. A shock-absorbing lanyard in this scenario lets the user hit the lower level before the shock pack has finished deploying.
• Ladder climbing — overhead-mounted SRL retracts line as the user climbs, keeping the line taut.
• Roof edge / leading-edge work — specific leading-edge-rated SRLs are available for situations where the device is mounted at foot level and the line passes over a sharp edge.
• Scaffold and structural steel — standard shock-absorbing lanyards work fine where clearance allows; SRLs are the choice if clearance is marginal or the user needs to move frequently.

SRL lengths and types

• Personal SRLs (1.5–3.5 m) — compact, clip directly to the harness dorsal D-ring or anchor. The default for trades.
• Standard SRLs (6 m, 10 m, 15 m, 20 m, 30 m) — fixed-anchor units used overhead on structural steel, crane hooks, or anchor plates.
• Rescue SRLs (with integrated winch) — retrieval-capable SRLs that allow a rescuer to lower a fallen user to safety after arrest, without requiring separate rescue equipment.
• Leading-edge SRLs — reinforced for use where the line may pass over a sharp edge; standard SRLs are not rated for foot-level or below-dorsal anchor positions.

Anchor position

Most SRLs are designed for overhead anchorage — the device or anchor point sits above the user's dorsal D-ring. Anchoring below shoulder height is only acceptable with leading-edge-rated SRLs. Check the manufacturer's specification before installing at foot level or on a lower anchor — consequences of misuse include uncontrolled falls and line severance.

Webbing vs cable SRLs

• Webbing SRLs — lighter, quieter, better for environments with hot work (sparks don't damage webbing as quickly as they damage cable sheaths). Preferred in construction and general trades.
• Cable (wire rope) SRLs — more durable against abrasion, wet conditions, and long-term outdoor use. Heavier. Preferred for permanently-mounted units and harsh environments.

Inspection and service life

Pre-use: visually inspect the line for fraying (cable) or cuts/abrasion (webbing); test retraction by pulling out line and releasing — it should retract smoothly; perform a lockout test by jerking the line sharply and confirming immediate lock. Annual service by the manufacturer or an authorised service agent is typically required to maintain warranty and compliance. Retire immediately after any fall-arrest event.

Standards & compliance

SRLs in this range are certified to AS/NZS 1891.3. Leading-edge-rated units additionally meet ANSI/ASSP Z359.14. Annual inspection by a competent person (often a manufacturer-authorised service agent) is required.

Frequently asked questions

Can I use an SRL at foot level?

Only if the specific SRL is leading-edge rated. Standard SRLs require the anchor to be at or above the dorsal D-ring. Foot-level anchorage with a standard SRL results in excessive free-fall distance and potential line severance at the edge — both fatal risks.

How does an SRL differ from a shock-absorbing lanyard?

Free-fall distance. A 2 m shock-absorbing lanyard lets the user fall 2–3.5 m before the shock pack starts deploying. A standard SRL locks in 0.3–0.6 m. This makes SRLs suitable for much lower-clearance situations.

How often do SRLs need servicing?

Pre-use visual inspection by the user; six-monthly documented inspection by a competent person under AS/NZS 1891.4; annual manufacturer-authorised service for most units (check the manual). Never open an SRL housing — the internal spring is a recognised injury risk.

Do you offer trade or bulk pricing?

Yes — trade accounts receive 5% off RRP on SRLs. Bulk pricing available for site fit-out (roof installations, structural-steel jobs) and for annual service/replacement programs. Apply for a trade account →