E-Stop System Gets a Tech Upgrade


Called the "most advanced cable-pull E-stop in the industry," the Allen-Bradley Guardmaster Lifeline 5 cable-pull switch is the first solid-state, cable-pull E-stop to feature a patented, microprocessor-based technology. 

Offering an electronic, rope-monitoring system to compensate for thermal expansion and cable sag, this innovation helps eliminate the nuisance trips and unreliable operation due seen in traditional cable-pull switches.


The switch provides constant access to the E-stop function, stopping a machine hazard with a simple pull of the attached cable. Its patented, microprocessor-based solution simplifies setup and allows more efficient maintenance and troubleshooting. The easy-to-see LED indicators assist in cable tensioning for quick, precise setup while providing switch status and diagnostics during operation.

Available in die-cast aluminum or rugged, stainless-steel housings with IP66 and IP67 environmental ratings, respectively, the Lifeline 5 switch helps optimize productivity by combining maximum reliability with diagnostics that can help prevent unplanned downtime. The die-cast aluminum model also offers an optional, integrated E-stop button for even greater application flexibility. 



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  • Includes an electronic rope monitoring system that monitors the cable span and compensates for thermal expansion
  • Offers rugged stainless steel (IP69K) or die cast aluminum (IP66) housings with optional e-stop button
  • Supports long cable spans up to 100 m span (328 ft.)
  • Provides wide operating temperature range -20...75° C (-4 to 167° F)
  • Offers LED operating status indicators (visible from a wide 270°) that provide diagnostics for switch and tensioning setup
  • Includes M12 5-pin connector for direct connection or M12 8-pin connector for series connection while maintaining the highest level of safety
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