Wiska Earthing Clamp Kit EC308

A pack of two brass earthing plates for earthing steel wire armoured (SWA) cable inside a Wiska Combi 308 junction box. Each plate has two M20 entries and three tapped M4 holes, and clamps onto a CW or BW brass gland as it's screwed into the box, giving the armour wire a secure earth connection without any extra drilling.

Because the earth tag connects through the gland itself rather than a separate cable entry, the box keeps its full IP rating once everything's fitted. At 55mm long, 28mm wide and 5mm thick, the plates sit neatly inside the Combi 308 without taking up much room.

Comes with a 1 year guarantee.

Questions People Ask

What is in the Wiska Earthing Clamp Kit EC308?
It is a pack of two brass earthing plates for earthing steel wire armoured (SWA) cable inside a Wiska Combi 308 junction box.

How does the earthing plate connect to the armour?
The plate clamps onto a CW or BW brass gland as the gland is screwed into the box. This gives the armour wire a secure earth connection without any extra drilling.

Will it affect the IP rating of the junction box?
No. The earth tag connects through the gland itself rather than a separate cable entry, so the box keeps its full IP rating once everything is fitted.

What size are the plates?
Each plate is 55mm long, 28mm wide and 5mm thick, with two M20 entries and three tapped M4 holes. They sit neatly inside the Combi 308 without taking up much room.

We offer free standard delivery on orders within the UK Mainland* (an additional fee applies for the Isle of Wight, the Isle of Man, the Scottish Isles, parts of Scotland, Northern Ireland, the Republic of Ireland, the Channel Isles and International).

*Collingwood orders under £150 incur a delivery fee of £9.95 inc. VAT.
*Any order under £49 incurs a delivery fee of £9.95.