Note
The synchronization modules correspond to the T4 classification if they are installed in
SIMATIC S7 CPUs that are listed in the ATEX certificate KEMA 03ATEX1125X for ambient
temperatures up to 70 °C.
You will find the current versions of the standards in the currently valid ATEX certificates.
IECEx
The SIMATIC S7 CPUs described in these operating instructions meet the requirements of
explosion protection acc. to IECEx.
Note
Type of protection of the device
The devices are approved for various types of protection. You can find the type of protection of
your device and the IECEx certificate number on the nameplate.
Note
Only use the synchronization modules in SIMATIC S7 CPUs that are listed in the IECEx
certificate IECEx 14.0034X.
Permitted types of protection
The following types of protection are possible:
● nA
IECEx classification: Ex nA IIC T4 Gc
Certificate no.: IECEx DEK 19.0052U
The products meet the requirements of the following standards:
– IEC 60079-15 (Explosive atmospheres - Part 15: Equipment protection by type of
protection "n")
– IEC 60079-0 (Explosive atmospheres - Part 0: Equipment - General requirements)
● ec
IECEx classification: Ex ec IIC Gc
Certificate no.: IECEx DEK 19.0052U
The products meet the requirements of the following standards:
– IEC 60079-7 (Explosive atmospheres - Part 7: Equipment protection through increased
safety "e")
– IEC 60079-0 (Explosive atmospheres - Part 0: Equipment - General requirements)
Approvals
Synchronization modules for S7-400H
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