Electrical Connection - SMA SUNNY ISLAND 4548-US Operating Manual

SMA Solar Technology America LLC

6 Electrical Connection

All cables are routed through the openings on the bottom side of the device (see next illustration) and
connected to the appropriate terminals on the Sunny Island.
Use conduits to install the cables on the DC side and on the AC side on the Sunny Island. Conduits
ensure the dust-tight and water-tight mounting of a cable on the enclosure and also serve as a strain
relief of the cable at the terminal. Close all unused openings in the enclosure using the appropriate
filler plugs.
Use the provided terminals to connect the cables inside the Sunny Island enclosure in a manner
conforming to the appropriate standards.
Obtain an overview of the different devices and connection areas of the Sunny Island
(see Section 2.2 "At a Glance", page 22).
Refer to the table below for the appropriate torque values and cable sizes.
Terminal
DC connections
Operating Manual
Torque
21 ft-lb (28 Nm)
Cable size
AWG 6 to AWG 3/0
(16 mm² to 95 mm²)
SI4548-6048-US-BE-en-21
6 Electrical Connection
Cable type
Only use copper
conductors. These
cables must be
approved for 167°F
(75°C).
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