3M dbi-sala 3400802 self retracting lifeline, 30’l, 310 cap lbs3400802 these sealed-blok self retracting lifelines srl’s incorporate a patented concept that separates all dynamic components, including the motor spring and brake, from foreign elements such as grease, moisture and dirt. You can always trust your srl to work at peak efficiency without worrying about the environment you’re working in. Our sealed srls are backed by decades of proven field service for absolute confidence, safety and reliability. An srl’s lifeline will extend as the user moves away, and retract automatically enabling the user to move about within a recommended working area at normal speeds. Should a fall occur, a speed sensing brake system will activate stopping the fall and reducing the forces imposed on the user to safe levels. Environmentally sealed dynamic components extremely durable construction 30 ft. 9.1m 3/16in 5mm stainless steel cable lifeline anti-ratcheting locking system built-in carrying handle swiveling stainless steel snap hook with impact indicator large pivoting anchorage loop saflok anchorage carabiner reserve lifeline system ergonomic cable handle equipped with 3Mconnected safety id csid