SMA SI-TB-BOX-10 - Manual (Page 33)

SMA America, LLC 6 Electrical Connection
Installation Manual SI_TDBOX-IA-eng-IUS122211 33
6.2.3 Interior View
Figure 15: Electrical connection area of the Smartformer
Position Description Color Explanation
A Cable clamps ‒ For clamping the cables when cables
are inserted via the upper flange plate.
B Connecting terminal blocks
"Relay2: C", "Relay2: NC" with
spring clamp terminals
Black For connecting the Sunny Island to the
load-shedding contactor in the
Smartformer
C Connecting terminal blocks
"Grounding" with spring clamp
terminals Yellow/
green For connecting PE of the AC
sub-distribution for the loads, the
PV plant, the Sunny Island, and the
generator or the power distribution grid
and for grounding the protection against
contact