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6 Electrical connection
Arrangement of elements AC connection to inverter with screw terminals
6.4.5 Connecting AC cables to busbars
High voltages are present in the live components of the low voltage grid.
Death resulting from burning and electric shock.
• Pay close attention to all safety precaution measures regarding the low-voltage grid.
• Switch off the AC and DC circuit breaker and secure it against accidental switching on.
• Ensure that no voltage is present.
Danger of fire caused by improper connection to the power distribution grid.
• To reduce the risk of fire, do not connect to an AC load center (circuit breaker panel) having
multi-wire branch circuits connected.
Danger of fire caused by different length of AC cables
Danger of fire.
• Different cable lengths within one phase result in overheating of the shortest cable.
• Connect all AC cables with the same length per phase.
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DisconACDC_SCUS-IUS103110
SMA America, LLC
Installation Guide
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