Siemens SIMATIC PANEL PC 877 - Manual (Page 38)

Installation
5.1 Securing the device with clamps
SIMATIC Panel PC 877
5-2
Operating instructions, Release 07/2006, A5E00877780-01
IP 65 degree of protection
The plant builder is responsible for the correct installation of the device.
The degree of protection IP65 is only guaranteed for the front of the device if the ring seal is
properly applied with the correct size of cutout, the unit has been clamped in place, and the
instructions below are observed.
Notice
Control cabinet installation; Material strength at the mounting cut-out
Please ensure that the material strength at the mounting cut-out is a maximum of 6 mm.
Please follow the specifications for the dimensions in the "Preparing the mounting cut-out"
section.
The degree of protection can only be guaranteed when the following requirements are met:
1. The material strength at the mounting cut-out must be at least 2 mm.
2. The deviation from the plane in relation to the external dimensions for an installed HMI
device is ≤ 0.5 mm