Installation Instructions

Chapter 4 - Power Cabling
UL Criteria for Cabling and Fusing
30 | 82
Siemens Industry, Inc.
Smart Infrastructure
Siemens BT300 HVAC Drive
Installation Instructions
DPD01148
2019-05-29
Figure 13: Conductor Cross-sections.
NOTES:
The factory-default switching frequencies (all frames) meet EMC requirements.
If the safety switch is connected, the EMC protection is continuous over the entire
cable installation.
UL Criteria for Cabling and Fusing
Cable Dimensioning
The cable dimensioning in Table Cable and Fuse Sizes for Siemens BT300 (FS4 to
FS9) is in accordance with UL61800-5-1, and the National Electric Code per table
310.15(B)(16). The values were determined for UL-approved copper wire using
correction factors for a 40°C ambient operating temperature, while using AC drive
cables with a minimum insulation rating of 60°C /75°C. See local or municipal
regulations for more sizing requirements.
NOTE:
The data detailed within Table Cable and Fuse Sizes for Siemens BT300 (FS4 to
FS9) applies to cases with one motor and one cable connection from the AC drive
to the motor. In other applications, consult the factory for more information.
Fuse Sizing
The AC drive is suitable for use on a circuit capable of delivering not more than
100,000 rm symmetrical amperes (600V maximum) when protected by UL-listed
Type J or T fuses. The fuse voltage rating should be selected according to the
supply network. The final selection should be in accordance with the local or
municipal regulations, cable specifications and cable installation conditions.
PE conductor
and shield
PE conductors
Shield
9007.emf