LINE JACK UNIT No. 3
Single outlet, single circuit LJU, coloured white.  Fits standard BS flush plaster depth metal back box.

Dimensions - 85mm x 85mm with 60.3mm fixing centres.

Fixing screws - 3.5mm.

3/1A = Master (has ringing capacitor, Line test resistor & lightning protector).
3/3A = Secondary.

To prevent removal of the plug a Bar, Captive No. 3A can be fitted and this is fixed in place by LJU fixing screws.
 
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Last revised: September 29, 2021

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