The master socket contain a surge arrestor and an R/C circuit filter these are used by your service provider to get a fixed value resistance when they run line checks. Standard BT type socket with screw type terminals. Flawless Screwless design Features Master BT type socket Screw terminals Screwless low profile design with built in gasket Certified to BS 5733 Minimum mounting box depth
Specifications
Colour
White
Overview
The master socket contain a surge arrestor and an R/C circuit filter these are used by your service provider to get a fixed value resistance when they run line checks. Standard BT type socket with screw type terminals. Flawless Screwless design Features Master BT type socket Screw terminals Screwless low profile design with built in gasket Certified to BS 5733 Minimum mounting box depth
