X20 system
3.2 Coated modules
Coated modules are X20 modules with a protective coating for the electronics component. The modules' electronics
are fully compatible with the corresponding X20 modules. From an installation point of view, these modules are
treated just the same as standard X20 modules.
3.2.1 X20c standard modules
Differences compared to uncoated X20 modules:
•
Suitable for operation in adverse atmospheric conditions
•
Suitable for operation in 100% humidity, condensing
•
Coated modules have a different module ID than the corresponding uncoated modules.
The protective coating has been certified according to the following standards:
•
Simulation of transport and storage: EN 60068-2-14, Test Nb
•
Condensation: BMW GL 95011-4
•
Corrosive gas: EN 60068-2-60, Method 4, exposure 21 days
•
Condensation: BMW GS 95011-4
3.2.2 X20c safety modules
Differences compared to uncoated X20 safety modules:
•
Extended temperature range see "Environmental characteristics" on page 39
•
Suitable for operation in 100% humidity, condensing
•
Coated modules have a different module ID than the corresponding uncoated modules.
The coating has been certified according to the following standards:
•
Condensation: BMW GS 95011-4, 2x 1 cycle
•
Corrosive gas: EN 60068-2-60, Method 4, exposure 21 days
Contrary to the specifications for X20 system modules without safety certification and despite the tests performed,
X20 safety modules are NOT suited for applications with corrosive gases (EN 60068-2-60)!
10 Installation / EMC guide 1.36 (April 2021)
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