Specifications:

• Model: 7012819223 (also referenced as part number 3500277) Twin-leg self-retracting lifeline (SRL)
• Lifeline length: 8 ft each leg (2.4 m)
• Lifeline material: 3/16 in (5 mm) galvanized steel cable
• Connector type: Aluminum rebar lock hooks on each leg
• Housing: Durable thermoplastic, compact, impact-resistant
• Rated capacity: 420 lb (190 kg) maximum user weight
• Standards: ANSI/ASSP Z359.14-2021, ANSI Class 2, OSHA 1910.140, OSHA 1926.502
• Designed application: Foot-level tie-off and leading-edge work (sharp edge compatible)
• Built-in features: Speed-sensing brake system, high-capacity external energy absorber, impact indicator, RFID tag for inventory management
• 1 Each

Ideal Industries:

• Commercial construction (high-rise, roofing, structural steel)
• Heavy civil infrastructure such as bridges, overpasses, tunnels
• Wind-energy and utility tower erection
• Oil & gas platforms and offshore rigs
• Industrial manufacturing facilities with elevated service platforms

Ideal Applications:

• Steel-erection work at rooftop or elevated decking levels
• Leading-edge concrete formwork and rebar installation
• Construction scaffolding assembly and disassembly
• Industrial maintenance on elevated platforms with sharp-edge exposure
• Bridge or mezzanine access where 100% tie-off is required

For U.S.-based safety professionals seeking the highest level of fall-protection performance in demanding environments, the 3M DBI-SALA 7012819223 3500277 Nano-Lok Edge Twin-Leg Self-Retracting Lifeline Cable stands out as a trusted, high-performance solution. This twin-leg SRL is engineered for leading-edge and foot-level tie-off applications where standard lanyards can’t perform reliably — including steel erection, rebar work, and elevated maintenance. Featuring an 8-foot galvanized cable lifeline with aluminum rebar lock hooks, this ANSI Class 2-compliant lifeline offers smooth, responsive braking action that reduces fall distance and impact force. Its lightweight thermoplastic housing is compact and rugged, making it ideal for professionals who need mobility without compromising safety. Workers often ask whether this model allows full 100% tie-off — yes, the twin-leg design supports continuous protection while moving between anchor points. It’s also specifically designed for sharp-edge use, providing dependable performance on construction decks, scaffolds, and steel beams. Rated for users up to 420 lb, this unit ensures durability and compliance in line with ANSI Z359.14-2021 and OSHA standards. Enviro Safety Products, a trusted supplier of certified PPE and fall-protection systems, provides this premium Nano-Lok Edge lifeline to help professionals in construction, manufacturing, oil & gas, and utilities stay safe and compliant on every job. Optimized for Shopify, Google, and Bing search performance, this description helps customers find the exact industrial-grade lifeline they need when searching for terms like “leading edge SRL,” “foot-level tie-off lifeline,” or “ANSI Class 2 twin-leg cable system.”

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