SMA Solar Technology AG
Electrical Connection of the Automatic Switch Box S
Technical Description
SBU2200-TEN083320
75
8.2.2 PV System (X2/PV System)
Connect the X2/PV System connection to the PV system. Use a conductor cross-section of max. 6 mm².
The terminals are designed as spring-type terminals. The nominal AC current is 20 A.
Due to the multitude of possible configurations (e.g., one Sunny Boy per phase), the Automatic Switch
Box S is not intended to serve as a distributor cabinet or fuse box for the Sunny Boys.
Number of PV inverters
Connect up to two Sunny Boys to the Automatic Switch Box S at the same time. Additional
measures are required if you want to connect more Sunny Boys. If necessary, contact SMA
Solar Technology AG (see section 24 „Contact“ (169)).
Do not bridge the neutral conductor
Connect up to two Sunny Boys to the Automatic Switch Box S at the same time. Additional
measures are required if you want to connect more Sunny Boys. If necessary, contact SMA
Solar Technology AG (see section 24 „Contact“ (169)).