The markings on cable glands, adaptors or plugs are very important as they allow the user to identify the article and manufacturer. Via the information on the markings, it is possible to check if the product meets the required application. Particular attention should be paid to certifications, relevant identification numbers, levels of protection and degree of protection IP.
The marking includes name of the manufacturer or its trademark, manufacturer article identification number, certification issuer’s name or marking and certificate reference. If it is necessary to indicate specific conditions of use, an “”X”” shall be placed after the certificate reference. A specific Ex marking shall be used for explosive gases and/or dust atmospheres.
Ex cable glands, blanking elements and thread adaptors need not be marked with a temperature class or maximum surface temperature.