SMA Sunny Tripower CORE1-US Instructions D'installation page 43

SMA Solar Technology AG
Damage to the DC connectors due to the use of contact cleaner of other
cleaning agents
Some contact cleaners or other cleaning agents may contain substances that decompose the
plastic of the DC connectors.
• Do not use contact cleaners or other cleaning agents for cleaning the DC connectors.
Destruction of the inverter due to overvoltage
If the open-circuit voltage of the PV modules exceeds the maximum input voltage of the inverter,
the inverter can be destroyed due to overvoltage.
• If the open-circuit voltage of the PV modules exceeds the maximum input voltage of the
inverter, do not connect any strings to the inverter and check the design of the PV system.
Danger to life due to electric shock from destruction of the measuring device
due to overvoltage
Overvoltage can damage a measuring device and result in voltage being present in the
enclosure of the measuring device. Touching the live enclosure of the measuring device results in
death or lethal injuries due to electric shock.
• Only use measuring devices with a DC input voltage range of 1000 V or higher.
Procedure:
1. Ensure that the circuit breaker is switched off and that it cannot be reconnected.
2. Ensure that the AC load-break switch and the DC
load-break switch are in the O position and are
secured against reconnection.
3. Secure the DC load-break switch against
reconnection using a padlock.
Installation Manual
NOTICE
NOTICE
WARNING
STP33-62-US-41-IA-xx-13
6 Electrical Connection
O
O
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