Industrial cabinet designers are increasingly opting for linear handle locks over swing handle locks due to their ease of use. Their multi-directional operation and higher force requirement means that swing handle locks are losing favour in the industry and declining in use.  In contrast, linear handle locks require only a simple, single-direction movement to open or close, providing a more convenient user experience, expanding their application in various settings.

Sealing is crucial to protect electrical components housed in for industrial cabinets. Swing handle locks readily provide this with sealing elements. However, achieving true impermeability in linear handle locks presents a significant challenge due to their design.

This paper explores the obstacles encountered in sealing linear handle locks and details the research and development (R&D) process undertaken to overcome these challenges.