Designed to accommodate standard telephone connectors used for domestic and commercial application Terminal box,This series telephone boxes have been popular used in the fields of communication,electric, and traffic. Suitable for flush or surface mounting confirming to IP41/NEMA applications.Connection pairs: 10 to 40,10 to 60,10 to 70,10 to 80,10 to 140,10 to 160,10 to 420 Telephone Box