Telephone Cable 20 30 50 100 Pairs Cat3 Shield Telecom Cable

Soft copper wires insulated with high-density polyethylene, foam skin or solid. Filled core, made up of groups of pairs or units of groups of pairs. Aluminum shield and external jacket in polyethylene type barrier against humidity.

Conductor
soft copper wires
Isolation
Foam skin or solid high-density polyethylene.
Twisted Pairs
The insulated conductors are twisted in pairs.
core assembly
Up to 70 pairs, groups of 10 pairs, from 100 to 300 pairs, groups of 25 pairs, 400 pairs and more, units of 100 pairs (each unit is made up of 4 groups of 25 pairs)
spare pairs
A spare pair of white-red color in the interstices of each unit of 100 pairs, to guarantee the nominal number of pairs.

Category 3 data telephone cable is suitable for use in multi-line telephone systems, intercom systems, burglar alarms, speaker extensions, signaling and power limited circuits. The cable is for applications with temperatures up to 60°C.