Danger to life due to electrical shock in case of over-voltages and missing surge protections
Over-voltages may conduct into other properties (e.g. electrical network of the building, connected devices via
network cables or data cables) in the event of a flash or lightning strike when there is no surge protection integrated
in the system. Touching live product, components and cables may result in death or severe injuries due to electric
shock.
Within the same electrical system and network, make sure all devices are integrated in the range of existing
over-voltage protection.
Integrate suitable surge protection to the transition from any cables, products or conductive component within
the system that are laid outdoor to the indoor system.
Danger to life due to electrical shock from touching ungrounded components or from touching live
components in case of a ground fault
Touching ungrounded PV modules, array frame, inverter or live system component, or parts of the system
components that are still live in the event of a ground fault, may result in death or severe injuries due to electric
shock.
PV modules and the array frames, including electrically conductive surfaces, MUST be connected and grounded
in compliance with all applicable regulations.
In the event of a ground fault,
DO NOT touch any parts or frame of the PV array.
DO NOT touch any cables without reliable insulation.
DO NOT connect the product to any strings with ground faults.
Before working on the product, voltage resources MUST be disconnected.
Personal protective equipment MUST be worn suitably and properly for all work.
Risk of Injury from exposure to substances, gases and dusts
In rare cases, damaged electrical components can cause formation of toxic chemicals inside the inverter, in such
presence of substances, gases or dusts. Exposure or inhaling such chemical may result in poisoning, skin irritation
or burns, breathing difficulty and nausea.
Personal protective equipment MUST be worn suitably and properly for all work.
Danger to life due to fire or explosion
In rare cases, operating under fault conditions may generate gas mixture inside any electrical devices, that can be
explosive or inflammable while switching operational state (e.g. switching the product ON/OFF in a ground fault
event). Flying debris from the fire or explosion may result in death or severe injuries.
DO NOT work the DC Switch on the product in the event of ground fault.
Before working on the product, voltage resources MUST be disconnected and fully de-energized.
PV arrays MUST be disconnected using a disconnection device instead of bare hands.
AC circuit breaker (if any) MUST be disconnected.
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