Safety Information - SMA SUNNY ISLAND 3.0M Installation Manual

2 Safety

2.2 Safety Information

This section contains safety information that must be observed at all times when working on or with the product. To prevent
personal injury and property damage and to ensure long-term operation of the product, read this section carefully and
observe all safety information at all times.
Danger to life from electric shocks due to live voltage and risk of injury from short-circuit currents
High voltages are present inside the Sunny Island inverter. When the enclosure lid is removed, live components can be
touched that can result in death or serious injury due to electric shock. Short-circuit currents in the battery can cause
heat build-up and electric arcs. Burns or eye injuries due to flashes may result.
• When carrying out any work on the electrical installation, wear suitable personal protective equipment.
• Switch off or disconnect the following components in the following order:
– Sunny Island
– The circuit breakers of the Sunny Island inverter on the distribution board and the control and measurement
voltages
– Load-break switch of the battery
• Ensure that the system cannot be reconnected.
• Open the enclosure lid on the Sunny Island inverter and ensure that no voltage is present.
• Ground and short-circuit the AC conductors outside the Sunny Island inverter.
• Cover or isolate any adjacent live components.
Danger to life from electric shock due to damaged Sunny Island
Operating a damaged Sunny Island can lead to hazardous situations that can result in death or serious injuries due to
electric shock.
• Only operate the Sunny Island when it is technically faultless and in an operationally safe state.
• Check the Sunny Island for visible damage.
• Make sure that all external safety equipment is freely accessible at all times.
• Make sure that all safety equipment is in good working order.
Risk of crushing injuries due to movable generator parts
Moving parts in the generator can crush or sever body parts. A generator can be started automatically by the
Sunny Island.
• Only operate the generator with the safety equipment.
• Install, maintain and operate the generator according to the manufacturer's specifications.
Risk of burns due to short-circuit currents on the disconnected Sunny Island
The capacitors at the DC connection input area store energy. After the battery is isolated from the Sunny Island, battery
voltage is still temporarily present at the DC connection. A short circuit at the DC connection can lead to burns and may
damage the Sunny Island inverter.
• Wait 15 minutes before performing any work at the DC connection or on the DC cables. This allows the capacitors
to discharge.
10 SI30M-44M-60H-80H-IA-en-32
SMA Solar Technology AG
Installation manual