FLEX I/O AC Digital Output Modules      5
Publication 1794-IN103D-EN-P - July 2018
European Hazardous Location Approval
Approved for the 1794-OA8K module only. 
WARNING: When you insert or remove the module while backplane power 
is on, an electric arc can occur. This could cause an explosion in hazardous 
location installations. 
Be sure that power is removed or the area is nonhazardous before 
proceeding. Repeated electric arcing causes excessive wear to contacts on 
both the module and its mating connector. Worn contacts may create 
electrical resistance that can affect module operation.
WARNING: If you insert or remove the module while backplane power is on, 
an electric arc can occur. This could cause an explosion in hazardous location 
installations. 
Be sure that power is removed or the area is nonhazardous before 
proceeding.
The following applies to products marked   II 3 G:
Are Equipment Group II, Equipment Category 3, and comply with the Essential Health and 
Safety Requirements relating to the design and construction of such equipment given in 
Annex II to EU Directive 2014/34/EU. See the EU Declaration of Conformity at 
http://www.rockwellautomation.com/global/certification/overview.page
 for details. The 
type of protection is II 3G Ex nA IIC T3 Gc according to EN 60079-15.
Comply to Standards EN 60079-0:2012, EN 60079-15:2010, reference certificate number 
LCIE 01 ATEX 6020 X.
Are intended for use in areas in which explosive atmospheres caused by gases, vapors, 
mists, or air are unlikely to occur, or are likely to occur only infrequently and for short 
periods. Such locations correspond to Zone 2 classification according to ATEX directive 
2014/34/EU.