The packaging contains caps for closing the inlets that will not be used.
Internal Depth: 46mm
External depth to the Inlets: 36mm
Outer inlet pipe diameter: 25mm (using with connection componet 25mm) can be used with 25mm conduits
Inlets: 4 inlets for 20mm conduit (plastic or flexible)
IEC 60670-22:2003 (1st Edition) with IEC 60670-1:2002 (1st Edition) + corrigendum 2003 and/or EN 60670-22:2006 with EN 60670-1:2005 + corr.2010 + A1:2013, IEC 61386-21:2002 (1st Edition) used in conjunction with IEC 61386-1:2008 (2nd Edition), EN 61386-21:2004 used in conjunction with EN 61386-1:2008, IEC 62321:2008 (ed.1)