SMA SC 250U - Manual (Page 14)

2 Safety SMA America, LLC
14 DISU_SCUS-IA-IUS111711 Installation Guide
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Failure to follow the manual, the operating instructions and the safety precautions may lead to
severe injury from electric shock.
• All work on the inverter and on the Disconnect Unit must be done as described in this manual.
• Pay attention to all safety instructions.
• Follow all operating instructions.
• If problems occur when performing the work described here, contact SMA.
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Operating a damaged inverter or Disconnect Unit can cause severe injury from electric shock.
• The inverter and the Disconnect Unit must only be used when it is technically faultless and safe
to operate.
• Do not operate the inverter or the Disconnect Unit if there are visible damages.
• Check the inverter and the Disconnect Unit on a regular basis for visible damage.
• Ensure that all safety features are accessible at all times and that their correct operation is
tested regularly.
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Cuts and scratches due to sharp edges inside the inverter and inside the Disconnect Unit can result.
• Wear protective gloves when working on the inverter and the Disconnect Unit.
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The components in the inverter and in the Disconnect Unit can be damaged by electrostatic
discharge.
• Observe all ESD safety regulations when working on and when handling the components of
the inverter and the Disconnect Unit.
• Discharge electrostatic charge by touching the grounded inverter enclosure.
• Only then it is safe to touch any electronic components.
Storage of technical writing
Keep this installation guide in the immediate vicinity of the Disconnect Unit. It must be accessible
to service and maintenance personnel at any time.
Do not store the installation guide or any other papers in the inverter or in the Disconnect Unit.