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6 Electrical connection
Figure 15: Connection sequence DC-switches to PV-plant
6.3.2 Connecting DC cables to DC load break switch with screw
terminals
Voltage is present in PV modules exposed to light. Death resulting from electric shock.
• Cover the PV modules.
• Switch off the fuses in the DC distribution boxes (e.g. Sunny Central String-Monitor) and
secure them against reconnection.
• Follow all safety precautions of the module manufacturer.
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DisconACDC_SCUS-IUS103110
SMA America, LLC
Installation Guide
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