FLEX I/O Digital Input Modules 21
Publication 1794-IN093E-EN-P - August 2018
Certifications
Certifications (when 
product is marked)
(1)
Value
c-UL-us UL Listed Industrial Control Equipment, certified for US and Canada. 
See UL File E322657.
UL Listed for Class I, Division 2, Group A, B, C, D Hazardous Locations, 
certified for US and Canada. See UL File E334470.
CSA (1794-IB8 and 1794-IB16 only)
CSA Certified Process Control Equipment. 
 See CSA File LR54689C.
CSA Certified Process Control Equipment for Class I, Division 2, Group 
A, B, C, D Hazardous Locations. See CSA File LR69960C.
CE European Union 2014/30/EU EMC Directive, compliant with: 
EN 61326-1; Meas./Control/Lab., Industrial Requirements 
EN 61000-6-2; Industrial Immunity 
EN 61000-6-4; Industrial Emissions 
EN 61131-2; Programmable Controllers (Clause 8, Zone A & B)
European Union 2011/65/EU RoHS, compliant with: 
EN 50581; Technical Documentation
RCM Australian Radiocommunications Act, compliant with: 
EN 61000-6-4; Industrial Emissions
Ex (1794-IB8)
European Union 2014/34/EU ATEX Directive, compliant with: 
EN 60079-0; General Requirements 
EN 60079-15; Potentially Explosive Atmospheres, Protection “n” 
II 3 G Ex nA IIC T3 Gc 
LCIE 01ATEX6020X
(1794-IB16)
European Union 2014/34/EU ATEX Directive, compliant with: 
EN 60079-0; General Requirements 
EN 60079-15; Potentially Explosive Atmospheres, Protection “n” 
DEMKO 14ATEX1342501X 
EN 60079-0:2012+A11:2013 
IECEx UL 14.0066X 
IEC 60079-0, 6th Edition 
IEC 60079-15, 4th Edition 
II 3 G Ex nA IIC T4 Gc