6 Electrical Connection SMA America, LLC
38 SI4548_6048-US-TB_en-13 Technical description
An overview of the different devices and their connection areas of the Sunny Island 4548-US/
6048-US can be found in section (see Section 2.2 "At a Glance", page 22).
Detailed installation descriptions of the connections are provided in the following sections:
• Grounding (see Section 6.5 "Interface for External Communication", page 60)
• DC Connection (see Section 6.2 "DC Connection", page 41)
• AC Connection (see Section 6.3 "AC Connection", page 45)
• Battery Temperature Sensor (see Section 6.4.1 "Battery Temperature Sensor", page 50)
• Battery Current Sensor (see Section 6.4.2 "Battery Current Sensor", page 52)
• Communication for Multi-Device Connection (see Section 6.4.3 "Communication for
Multi-Device Connection", page 54)
• Multifunction Relay 1 and 2 (see Section 6.4.4 "Multifunction Relay 1 and 2", page 55)
• External Communication (see Section 6.5 "Interface for External Communication", page 60)
AC connections 22 in-lbs. (2.5 Nm) AWG 4 (25 mm²) Only use copper
conductors.
These cables must be
approved for 167°F
(75°C).
Additional connections 5 in-lbs. to 7 in-lbs.
(0.56 Nm
to
0.79 Nm)
AWG 30 to AWG 12
(0.05 mm² to 4 mm²)
Only use copper
conductors.
These cables must be
approved for 167°F
(75°C).
Terminal Torque Cable size Cable type
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