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S7-300 Automation System, Hardware and Installation: CPU 31xC and CPU 31x
1-2 A5E00105492-03
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The SIMATIC S7-300 product series has the following approvals:
• Underwriters Laboratories, Inc.: UL 508 (Industrial Control Equipment)
• Canadian Standards Association: CSA C22.2 No. 142, (Process Control
Equipment)
• Factory Mutual Research: Approval Standard Class Number 3611
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The SIMATIC S7-300 product series conforms to the requirements and safety
specifications of following EU directives:
• EU directive 73/23/EWE "Low-voltage directive"
• EU directive 89/336/EEC "EMC directive“
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The SIMATIC S7-300 product series is compliant with AS/NZS 2064 (Australia).
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The SIMATIC S7-300 product series is compliant with the requirements and criteria
for IEC 61131-2.
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