6 Electrical Connection
SMA Solar Technology America LLC
Installation Manual
RSS-US-IA-xx-14
28
Information on laying tray cables for exposed run (TC-ER)
The procedure for using conduits is described in this section. Instead of conduits, you can also
use tray cables for exposed run (TC-ER).
• When using tray cables for exposed run (TC-ER), select suitable cable glands and attach
to the enclosure opening instead of the conduit. When doing so, ensure that the
enclosure opening is sealed and no moisture can enter.
Requirement:
☐ All electrical installations must be carried out in accordance with the locally applicable
electrical standards and the National Electrical Code
®
ANSI/NFPA 70 or the Canadian
Electrical Code
®
CSA C22.1.
Pin assignment:
Figure 10 : Pin assignment of the upper pin row on the terminal block
RSC
in the Rapid Shutdown Box
Pin
Assignment
1
Supply voltage (+12 V)*
2
Rapid Shutdown Controller switch
3
Ground (0 V)
4
Rapid Shutdown Controller green LED
5
Rapid Shutdown Controller red LED
* The open-circuit voltage may be up to 20°V.
Procedure:
1. Remove the sealing plug from one of the enclosure openings with sealing plugs.
2. Insert the conduit fitting into the opening of each Rapid Shutdown Box and tighten from the
inside using the counter nut.
3. Attach the conduit at the conduit fitting in each Rapid Shutdown Box enclosure.
4. Lead the conductors up to the terminal block
RSC
in the first Rapid Shutdown Box.
ENGLISH
Summary of Contents for RSB-2S-US-10
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