This is the Knightsbridge SF7400MW, a 1 gang slave telephone socket - extension BT phone socket outlet - in a matt white screwless flat metal plate. It is made of high quality premium grade steel material, ultra-slim, complete with integral gasket.
It contains a surge arrestor and a R/C circuit filter which are used by the service provider to get a fixed value resistance when they run line checks. This is a Standard BT type socket with screw type terminals, with the slave function (extension socket).
|Switches & Sockets Specific|
|Back Box Depth||25mm|
|Plate Dimensions||87.5mm x 87.5mm|
|Plate Projection / Protrusion||4.3mm|
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