Siemens PM330, Hardware Installation Manual

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Technical specifications
6.2 Specific technical data
Power Module PM330
Hardware Installation Manual, 12/2018, A5E32844552B AF
87
6.2 Specific technical data
Note
Recommended connection cross-sections
The recommended connection cross-sections are determined for copper cables at 45 °C
ambient temperature and cables with a permitted operating temperature at the conductor of
70 °C (routing type C - factor for bundling 0.75 considered) according to DIN VDE 0298-
4/08.03).
Protective conductor cross-section (S: Cross-section of the supply connection phase
conductor, MS: Cross-section of the external protective conductor):
Minimum cross-sections:
•
S < 16 mm² → MS = S
• 16 mm² ≤ S ≤ 35 mm² → MS = 16 mm²
•
S > 35 mm² → MS = 0.5 × S
Recommended cross-sections:
• MS ≥ S