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Configuring the DC Input-Voltage Range
The Sunny Boy 700U is designed for a maximum DC input voltage of 250 V DC.
The input voltage range can be configured to match the output of your PV array in
three ranges: 125 V DC to 250 V DC (700 W max), 100 V DC to 200 V DC (600
W max), and 75 V DC to 150 V DC (460 W max).
Figure 4-6 (page 4-12) and Table 4-2 (page 4-13) show where to position the
range-configuration plug and jumper to configure the Sunny Boy's DC input-voltage
range. Table 4-1 (page 4-11) lists the AC-current and power specifications for the
Sunny Boy 700U for each of the DC input-voltage range configurations.
CAUTION:The open-circuit voltage of the connected DC
string must never exceed the maximum DC input-voltage con-
figured by the DC range-configuration plug and jumper (Fig-
ure 4-6 and Table 4-2 on pages 4-12 and 4-13). Applying
an open-circuit voltage that does exceed the maximum DC in-
put voltage will cause irreversible damage to the Sunny Boy
and void the warranty!
SB700U-11:SE3207
SMA America
4-11
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