Master Telephone Socket - Surface0LJU2/1A

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68mm x 68mm x 29mm
Master Telephone Socket Surface
For use as the first socket-outlet on a direct exchange line or PABX line.
They contain surge protectors (for line protection against electrical surges) and capacitors.

Wiring regulation restrictions
Any number of sockets may be installed thereafter, with a maximum of 5 telephones
normally being allowed on one exchange line.

Commercial installations: Our telephone sockets are suitable in all situations after the PBX/PABX .

For key systems and other ‘special’ systems, the manufacturer’s instructions should be referred to.
  • Installation tools required
  • Telephone sockets should not be installed into the same fixing or mounting boxes as mains rated cable.
  • IDC insertion tool code GP TOOL or Krone IDC insertion tool code GP T107.


Telephone Wiring Info
Product Code
Price (ex VAT)
Price (inc VAT)
product photo
GP 21A

Master Telephone Socket - Surface