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Ganging & Derating

Planning a Custom Architectural Multi-gang


Step 1

Determine if the side sections are to be removed or to remain intact (applicable to Vareo, NovaT*, Nova, Centurion). Consider width of application, load, number of wallboxes required, product type and side section breakoff options

Control Widths (for determining width of a ganged installation)

  Number of Small Controls

Example wallbox arrangement required for gang of 4 small controls, side sections intact:

wallbox arrangement
Number of
Large Controls		 0 1 2 3 4 5 6
0 0 1 1+1* 4 4+1* 7 7+1*
1 1 3 5 6 8 9 11
2 4 6 7 9 10 12 13
3 6 8 10 11 13 14 16
4 9 11 12 14 15 17 18

*Note: When ganging an even number of small controls with no side sections removed, use wallboxes with tapped ears as shown. Do not use plastic rings or gangbox covers. Space an additional wallbox 3/4" apart from the other wallbox(es). A 3/4" chase nipple is recommended as a spacer between the wallboxes.

Wallboxes Required - All inside sections removed

  Number of Small Controls

When removing side sections, remove only inner side sections. Do not remove side sections on outer ends of the gang.

side sections
Number of
Large Controls		 0 1 2 3 4 5 6
0 0 1 2 3 4 5 6
1 1 3 4 5 6 7 8
2 3 5 6 7 8 9 10
3 5 7 8 9 10 11 12
4 7 9 10 11 12 13 13

mounting holes

Assembling the Controls

When ganging any combination of small and large controls, place a small control on one extreme end of the gang, and a large control at the other end of the gang. Use center and offset mounting holes as necessary.



Step 4

Determine the multi-gang wallplate configuration. For Vareo, NovaT* and Nova, use the Custom  Architectural Multi-Gang Tool.

Download Custom Architectural Wallplate Model Numbers and Insert Codes