Technical specifications
A.2 General technical specifications
S7-1200 Programmable controller
System Manual, V4.2, 09/2016, A5E02486680-AK
1361
EN 60079-0: Explosive Atmospheres – General Requirements
EN60079-15: Electrical Apparatus for Potentially Explosive Atmospheres;
Type of protection ‘nA’
IECEX FMG14.0012X
Ex nA IIC Tx Gc
IECEx rating information may appear on the product with the FM Hazardous Location
information.
Only products marked with an IECEx rating are approved. Consult your local Siemens
representative if you need additional information related to the latest listing of exact
approvals by part number.
Relay models are not included in IECEx approvals.
Refer to specific product marking for temperature rating.
Install modules in a suitable enclosure providing a minimum degree of protection of IP54
according to IEC 60079-15.
ATEX approval applies to DC models only. ATEX approval does not apply to AC and Relay
models.
EN 60079-0: Explosive Atmospheres - General Requirements
EN 60079-15: Electrical Apparatus for Potentially Explosive Atmospheres;
Type of protection 'nA'
II 3 G Ex nA IIC T4 or T3 Gc
Special conditions for safe use:
Install modules in a suitable enclosure providing a minimum degree of protection of IP54
according to EN 60529, or in a location providing an equivalent degree of protection.
Attached cables and conductors should be rated for the actual temperature measured under
rated conditions.
Provisions should be made to prevent the rated voltage at the power supply terminals from
being exceeded by transient disturbances of more than 119 V.
Australia and New Zealand - RCM Mark (Regulatory Compliance Mark)
The S7-1200 automation system satisfies requirements of standards to AS/NZS 61000.6.4
and IEC 610000-6-4 (Class A).
The S7-1200 automation system satisfies the requirements of the Korean Certification (KC
Mark). It has been defined as Class A Equipment and is intended for industrial applications
and has not been considered for home use.
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