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Do all of the approved incomers fit into main enclosure of the MGBN range of Isobar distribution boards.

Incomers up to and including 125A
The Isolators and RCD's fit directly into the distribution boards.

Incomers above 125A 
Isolators and MCCB's fit directly into the distribution boards but come complete with an extension box to allow for cabling space.
The 160A RCD incomer is a larger device, and fits into both the distribution board and the extension box included in the kit. Space is still available for incoming cables.

The extension boxes included with incomers above 125A are 270mm high.
Incomers above 125A are also available without the extension boxes. Cabling space will have to be provided by other means.
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