157/2 wall box 2gang.

Please go to the website via the following links below and check under the Documentation Tab for more information.
Australia - https://www.clipsal.com/products/detail?CatNo=157/2&itemno=157/2&backto=/search?q=157/2&tab-document-1=0
New Zealand - https://www.pdl.co.nz/products/detail?CatNo=157/2&itemno=157/2&backto=/search?q=157/2&tab-document-1=0