Safety instructions and general notes 
  2.2 Standards, Certificates and Approvals 
OP 73micro, TP 177micro (WinCC flexible) 
Operating Instructions, 09/2007, 6AV6691-1DF01-0AB0 
19 
 
Underwriters Laboratories Inc. conforming to  
●  UL 508 (Industrial Control Equipment) 
●  CSA C22.2 No. 142, (Process Control Equipment) 
●  UL 1604 (Hazardous Location) 
●  CSA-213 (Hazardous Location) 
Approved for use in 
●  Class I, Division 2, Group A, B, C, D or 
●  Class I, Zone 2, Group IIC or 
●  non-hazardous locations 
FM Approval 
FM
APPROVED
 
Factory Mutual Research (FM) conforming to 
●  Approval Standard Class Number 3611, 3600, 3810 
Approved for use in 
●  Class I, Division 2, Group A, B, C, D T4 
●  Class I, Zone 2, Group IIC T4 
Ex approval 
 
In compliance with EN 50021 (Electrical apparatus for potentially explosive atmospheres; 
Type of protection "n") 
●  II 3 G/D EEx nA II T4 
●  IP65 
●  04 ATEX 1297X 
Tick-mark for Australia 
N117
 
The HMI device fulfills the requirements of standard AS/NZS 2064 (Class A).