Cable glands (also known in the U.S. as a cord grip, cable strain relief, cable connector or cable fitting) is a mechanical device designed to allow a cable (or cables) to enter into an equipment or enclosure while retaining or holding the cable and sealing the hole from dust or water (depending on the IP classification). In addition, it may also have other functions such as earthing (grounding), bending protection for the cable and of course providing strain relief. These functions may also be combined into one single gland. This is as defined by EN50262.
Cable glands may be made from a variety of material such as polyamide (commonly known as plastic glands), nickel plated brass or stainless steel. It all depends on the working environment of the gland. They may also vary by the types of cables (round cable or flat cable), entry angle or as an entry into a conduit or connector.
Multiple entry cables glands are glands which are designed for entry of multiple cables – some which allows only unharnessed cables (without connectors assembled) and some which allows cable assemblies.
Cable glands come with a variety of tools and accessories for the purpose of sealing an unused gland (plugs), reduce or enlarge or adapt the screw size of the gland or adding an EMC function into a regular gland