Danger to life due to electric shock when live components or DC conductors are touched

When exposed to sunlight, the PV modules generate high DC voltage which is present in the DC conductors. Touching live DC conductors results in death or lethal injuries due to electric shock.

1. Disconnect the product from voltage sources and make sure it cannot be reconnected before working on the device.
2. Do not touch non-insulated parts or cables.
3. Do not remove the terminal block with the connected DC conductors from the slot under load.
4. Wear suitable personal protective equipment for all work on the product.

Danger to life due to electric shock when touching live system components in case of a ground fault

If a ground fault occurs, parts of the system may still be live. Touching live parts and cables results in death or lethal injuries due to electric shock.

1. Disconnect the product from voltage sources and make sure it cannot be reconnected before working on the device.
2. Touch the cables of the PV array on the insulation only.
3. Do not touch any parts of the substructure or frame of the PV array.
4. Do not connect PV strings with ground faults to the inverter.
5. Ensure that no voltage is present and wait five minutes before touching any parts of the PV system or the product.

Danger to life due to electric shock in case of overvoltages and if surge protection is missing

Overvoltages (e. g. in the event of a flash of lightning) can be further conducted into the building and to other connected devices in the same network via the network cables or other data cables if there is no surge protection. Touching live parts and cables results in death or lethal injuries due to electric shock.

1. Ensure that all devices in the same network are integrated in the existing overvoltage protection.
2. When laying the network cable outdoors, ensure that there is suitable surge protection at the network cable transition from the product outdoors to the network inside the building.
3. The Ethernet interface of the inverter is classified as "TNV-1" and offers protection against overvoltages of up to 1.5 kV.

Danger to life due to fire or explosion

Despite careful construction, a fire or explosion may occur in electrical devices. Death or lethal injuries due to fire or flying debris can result.

1. Wear suitable personal protective equipment for all work on the product.
2. Do not mount the product in areas containing highly flammable materials or gases.
3. Do not mount the product in potentially explosive atmospheres.
4. Ensure that unauthorized persons have no access to the product.
5. In case of error, only carry out corrective measures specified by SMA Solar Technology AG ( > Troubleshooting). If no corrective measures are specified, do not perform any actions on the product. Contact the Service.

Risk of burns from hot surfaces

The surface of the inverter can get very hot. Touching the surface can result in burns.

1. Mount the inverter in such a way that it cannot be touched inadvertently.
2. Do not touch hot surfaces.
3. Wait 30 minutes for the surface to cool sufficiently.
4. Observe the safety messages on the inverter.

Risk of injury due to weight of product

Injuries may result if the product is lifted incorrectly or dropped while being transported or when attaching it to or removing it from the wall mounting bracket.

1. Transport and lift the product carefully. Take the weight of the product into account.
2. Wear suitable personal protective equipment for all work on the product.

Damage to the enclosure seal in subfreezing conditions

If you open the product or disconnect the Power Unit and Connection Unit when temperatures are below freezing, the enclosure seals can be damaged. Moisture can penetrate the product and damage it.

1. If a layer of ice has formed on the enclosure seal when temperatures are below freezing, remove it prior to opening the product (e.g. by melting the ice with warm air). Observe the applicable safety regulations.
2. Do not disassemble the Power Unit and Connection Unit unless the ambient temperature is at least 0°C (32°F) and conditions are frost-free.

Damage to the product due to sand, dust and moisture ingress

Sand, dust and moisture penetration can damage the product and impair its functionality.

1. Only open the product if the humidity is within the thresholds and the environment is free of sand and dust.
2. Do not open the product during a dust storm or precipitation.
3. Close tightly all enclosure openings.
4. Only use listed rain-tight or liquid-tight conduit fittings to attach the conduits to the product.

Damage due to cleaning agents

The use of cleaning agents may cause damage to the product and its components.

1. Clean the product and all its components only with a cloth moistened with clear water.

Damage to the inverter due to electrostatic discharge

Touching electronic components can cause damage to or destroy the inverter through electrostatic discharge.

1. Ground yourself before touching any component.

Destruction of the measuring device due to overvoltage

1. Only use measuring devices with a DC input voltage range of 600 V or higher.