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Rockwell Automation Publication ICSTT-RM448J-EN-P - April 2018
Chapter 2
The AADvance Safety Controller
Compact Module Design
Each processor and I/O module has a flame-retardant and impact-resistant
plastic cover. The cover is designed to help ventilation and heat dissipation
occur naturally without the need for fan assisted cooling. Processor and I/O
modules fit onto standardized base units. Base units plug together by side
connectors and are securely held in position by specially designed plastic clips
which cannot corrode or seize up. Modules are retained by a locking screw
which is easy to access from the front.
Figure 2 - An AADvance Module
NOTE
Standard AADvance modules have a plastic casing and are rated IP20:
Protected against solid objects over 12 mm (1/2 in.) for example "fingers".
There is no specific protection against liquids.