2 Safety
SMA America, LLC
12
CU600-1000US-IA-en-10
Installation Manual
2.3 Safety Precautions
This section contains safety precautions that must be observed at all times when working on or with
the product.
To prevent personal injury or property damage and to ensure long-term operation of the product, read
this section carefully and follow all safety precautions at all times.
Danger to life due to high voltages in the Connection Unit
High voltages that can cause fatal electric shocks when touched are present in the live components
of the Connection Unit.
• All work on the Connection Unit must be carried out by qualified persons only.
• Before working on the Connection Unit carry out the following steps:
– Switch off all devices that are connected to the Connection Unit (e.g. inverter) and protect
against reconnection.
– Cover the PV modules.
– Turn the DC switch-disconnector of the Connection Unit counterclockwise by 90° and set
to
OFF
.
• While operating the Connection Unit, do not remove the sealing plugs.
• All work on the Connection Unit should only be carried out as described in this document.
Danger to life due to operating a damaged Connection Unit
Using a damaged Connection Unit can lead to serious or lethal injuries through electric shock.
• Only operate the Connection Unit when it is functioning properly and safely.
• Regularly check the Connection Unit for visible damage.
• Ensure that all safety equipment is freely accessible at all times.
Damage to the Connection Unit due to electrostatic discharges
By touching electronic components you can damage or destroy the Connection Unit through
electrostatic discharge.
• Ground yourself before touching any components.
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