6 Electrical Connection
SMA America, LLC
38
SB3-5TLUS22-IA-en-10
Installation Manual
6.2.2 Connection Area of the DC Disconnect
Figure 14: Connection areas of the DC Disconnect
K
Enclosure opening (
3
⁄
4
in. (19 mm)) For the conduit fitting used to insert the optional
connecting cable of an emergency power
module
L
Enclosure opening
For the cable gland used to insert the optional
connection cable for the fan retrofit kit
M
Rotary switch
For setting the language and country standard
N
Retainer
For the retrofit fan
O
Fastening screw
For the anchorage bracket of the DC Disconnect
for grounding
* optional
Item
Designation
Explanation
A
Anchorage bracket
For attachment to the grounding screw in the inverter
B
Enclosure opening
For insertion of the connection cable from the inverter
C
Screw terminals
For connection of the connection cable from the inverter
D
Screw terminals
For connection of the DC equipment grounding conductor and
of the grounding electrode conductor
E
Screw terminals
For the connection of the PV strings (input B+)
Item
Designation
Explanation
