Double-locked cable glands provide an extra layer of security for cables in electrical or electronic installations. They are designed with two independent locking mechanisms to ensure a reliable and secure connection. These two locking mechanisms typically consist of an inner lock and an outer lock that work together to provide enhanced cable retention and sealing.
Internal locks are designed to clamp and secure the cable directly, usually through the use of serrations or teeth that bite into the cable insulation. This inner lock prevents the cable from being pulled or loosened from the cable gland, even when subjected to vibration or strain.
An outer lock, on the other hand, is a separate mechanism used to secure a cable gland to an enclosure or panel. It usually involves a gland nut or other type of fastening mechanism that secures the gland to the housing, providing a reliable and secure connection. The outer lock also helps ensure that the cable gland is properly sealed to prevent the ingress of dust, moisture, or other contaminants.
The combination of inner and outer locks in the double lock cable gland provides increased protection against pulling out cables, loosening, or the ingress of hazardous substances. This makes them suitable for applications requiring high reliability, safety, and sealing performance, such as industrial environments, outdoor installations, or critical systems.