Siemens SIPROTEC 5 Series Hardware Description page 218

Technical Data
6.14 Assembly Dimensions
All drillings in the area of the specific device cut-out widths (see
in the corresponding figures.
[dw_z2_2-6, 2, en_US]
Figure 6-6
218
Cut-Out Widths and Drilling Pattern – 1/3 Device, 2nd Device Row
Table 6-6) must comply with the dimensions
SIPROTEC 5, Hardware Description, Manual
C53000-G5040-C002-C, Edition 10.2017