SMA SC 500CP-US - Manual (Page 39)

SMA America, LLC 6 Preparation for Installation
Installation Manual SCCP-US-IA-US_en-41 39
Figure 19: Minimum clearances for two inverters installed in electrical equipment rooms
6.2.5 Requirements for the Cable Routing between MV Transformer and Inverter
This section explains how to arrange the AC cables to minimize the interferences between the different line conductors.
Make sure that the cables of the different line conductors are of the same length.
Position Description
A Minimum passage width
Maintain the minimum passage width between the open door of the inverter and the next fixed
obstacle. The minimum passage width must comply with national standards. In the USA, the
minimum passage width is 36 in. (915 mm).
B Inverter
C Removable wall of the electrical equipment room. A removable wall is only necessary if the option
"Zone Monitoring" has been selected.
:$51,1*
Fire hazard due to wrong AC cable routing
Incorrect routing can lead to the AC cables overheating and catching fire. Death or serious injury due to fire can result.
• Only route the AC cables as described.
• All cables used must have sufficient ampacity.
• All cables must be of the same length.
• The maximum length of the cables of 49 ft. (15 m) must not be exceeded.
Number of cables per
line conductor
AC cable arrangement
3 AC cable arrangement 1
4 If possible: AC cable arrangement 2
Otherwise: AC cable arrangement 1
5 AC cable arrangement 1