SMA America, LLC
AC Voltage Configuration
SB50US-80US-IA-en-36
SB50US-80US-IA-en-36
19
* only SB 5000US-12/SB 6000US-12/SB 7000US-12/SB 8000US-12
4.3 AC Voltage Configuration
The Sunny Boy is compatible with the following grid types:
• 208 V AC (not Sunny Boy 8000-US)
• 240 V AC
• 277 V AC
The Sunny Boy is configured ex works for connection to
the power distribution grid with a voltage of 240 V AC.
The Sunny Boy can be configured for other voltages.
4 cables are inserted into the enclosure via a cable
support sleeve. Each cable is labeled with its respective
voltage.
1. Connect the cable with the correct voltage to the
left terminal block (A).
2. To adjust the AC voltage, select the cable with the
correct voltage at the right terminal block (C).
Connect the selected cable to the left side of the left
terminal block (A).
3. Secure all screw terminals. If spring-type terminals
are available, close the levers of the terminals by
pressing down.
G
Output AC conductor terminals (N, L1, and L2)
H
Connecting terminal plate, PV grounding conductor, + DC grounding conductor
I
DC varistor terminal with DC varistors*
K
Output AC conductor terminals (L1, L2, N and PE)
L
Terminal PV GROUNDED (PV array input)
M
Terminal PV UNGROUNDED (PV array input)
N
Combined terminal UNGROUNDED
O
Terminal DC − (PV array input)
P
Terminal DC+ (PV array input)
Q
Flat male tab for grounding the cable shield for communication
R
Terminal for optional communication (RS485)
The Sunny Boy 8000-US must not be connected to a 208 V grid.
Position
Description
