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2 Safety SMA Solar Technology AG

10 ClusterController-IA-en-10 Installation Manual

2.2 Qualifications of Skilled Persons

The work described in this document must only be performed by skilled persons. Skilled persons must

have the following qualifications:

• Training in the installation and commissioning of electrical devices

• Training in how to deal with the dangers and risks involved in installing and operating electrical

devices and plants

• Vocational training in the installation and configuration of IT systems

• Knowledge of how an inverter works and is operated

• Knowledge of all applicable standards and directives

• Knowledge of and compliance with this document and all the safety precautions

2.3 Safety Precautions

Electric Shock

If the enclosure of the Cluster Controller is not earthed, there is a danger of electric shock.

• Earth the enclosure of the Cluster Controller (for information on connecting the protective

conductor, see Section 6.13).

Damage to the Devices and Cables

Overvoltage (e.g. due to a flash of lightning) can cause damage to devices and cables.

• Ensure that the Cluster Controller is integrated in the existing overvoltage protection.

The Cluster Controller is not splashwater-protected (degree of protection: IP20). Consequently, it is

possible that moisture may penetrate the device.

• Only use the Cluster Controller in a dry, indoor environment.

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