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Smart Lock™ DBI-SALA® 3M self-retracting lifeline (SRL), 50 ft (15.2 m), galvanized cable, blue. Capacity: 420 lb (190 kg). Designed for large industrial structures requiring very long reach.
3M purchase code: 7100204327, model: 3503824.
Complies with CSA Z259.2.2-17. Made to order. Allow approximately 1 month.
Smart Lock distinguishes normal movements from a fall. 50 ft reach for work far from the anchor point. Always calculate minimum clearance before use.
Glass-filled nylon housing. IRF (RFID) technology.
The cable is made of galvanized steel, a zinc-treated metal material resistant to corrosion. Unlike textile webbing, a steel cable offers superior resistance to friction and sharp edges. Galvanization ensures extended longevity in industrial environments exposed to moisture.
About the anchor point:
The anchor must always be above the dorsal D-ring, positioned vertically. Max 30-degree angle. Consult the manufacturer's manual for specific stopping distances.


Perform a routine inspection before each use. A qualified person must inspect every 90 or 180 days. Recommended service life: 5 years. Sylprotec inspection service available.
Any equipment subjected to a fall or impact must be taken out of service.
Clean with mild soap and warm water (37°C). No bleach. Air dry.
Smart Lock uses a motion-sensing mechanism to distinguish normal work movements from an actual fall. It reduces nuisance lock-ups while ensuring immediate arrest. 420 lb capacity for workers with heavy equipment.
La longueur de 50 pi est recommandée pour les grandes structures industrielles, ponts, châteaux d'eau ou tout environnement où le point d'ancrage est très éloigné du travailleur. Attention : avec une aussi grande longueur, la distance de chute libre est significative. Calculer le dégagement minimal avant utilisation.
Yes, this SRL complies with CSA Z259.2.2-17. Manufactured in the USA by DBI-SALA, a globally recognized 3M brand.
Pair with a harness ExoFit X300 (FPH1403166C), or the harness ExoFit X300 (FPH1403185C). Add safety glasses SecureFit 400 (YASF401BG) and earplugs EARsoft (OA1250). Under "Accessories" at the bottom.
The gloves Dyneema PU A4 (GS13SXGPU) protect your hands. The bag Peakworks (FPBAG) keeps your equipment clean. For the 50 ft stainless version, FPLR3503823 is also available.
Data sheet
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