IMPORTANT SAFETY INSTRUCTIONS

SAVE THESE INSTRUCTIONS

This section contains safety information that must be observed at all times when working.

The product has been designed and tested in accordance with international safety requirements. As with all electrical or electronical devices, there are residual risks despite careful construction. 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

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

High voltages are present in the conductive components or cables of the product. Touching live parts and cables results in death or lethal injuries due to electric shock.

  1. Do not touch non-insulated parts or cables.
  2. Disconnect the product from voltage sources and make sure it cannot be reconnected before working on the device.
  3. After disconnection, wait 15 minutes until the capacitors have discharged.
  4. Observe all safety information on components associated with the product.
  5. Wear suitable personal protective equipment for all work on the product.

DANGER

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 and the battery are integrated into the existing surge protection.
  2. When laying the network cables or other data cables outdoors, it must be ensured that a suitable surge protection device is provided at the transition point of the cable from the product or the battery outdoors to the inside of a building.

DANGER

Danger to life due to electric shock when live components are touched because the battery grounding is connected to grounding conductor terminals

Due to the connection of the battery grounding to the grounding conductor terminals, high voltages might be present on the enclosure of the inverter. Touching live parts and cables results in death or lethal injuries due to electric shock.

  1. Only the grounding conductors of the AC power cables may be connected to the grounding conductor terminals of the inverter.
  2. Observe all safety information of the battery manufacturer.
  3. Ground the battery according to the battery manufacturer's requirements.
  4. If the locally applicable standards and directives require battery grounding, connect the battery grounding to the grounding busbar in the distributor.

DANGER

Danger to life due to electric shock in case of overvoltages and unsuitable loads

Overvoltages of up to 1500 V can occur in the stand-alone grid and in the battery-backup grid. If the loads are not suitable for these overvoltages or are not safe to operate, a voltage that poses a danger to life may be present on accessible parts or cables. Touching live parts and cables results in death or lethal injuries due to electric shock.

  1. Only connect loads that have a CE, RCM or UL designation. These loads are suitable for overvoltages of up to 1500 V.
  2. Operate the loads only when they are technically faultless and in an operationally safe state.
  3. Check the loads regularly for visible damage.

DANGER

Danger to life due to electric shock when operating a damaged product

Operating a damaged product can lead to hazardous situations since high voltages can be present on accessible product parts. Touching live parts and cables results in death or lethal injuries due to electric shock.

  1. Only operate the product when it is in a flawless technical condition and safe to operate.
  2. Check the product regularly for visible damage.
  3. Make sure that all external safety equipment is freely accessible at all times.
  4. Make sure that all safety equipment is in good working order.
  5. Wear suitable personal protective equipment for all work on the product.

WARNING

Danger to life due to fire or explosion

In rare cases, an explosive gas mixture can be generated inside the product under fault conditions. In this state, switching operations can cause a fire or explosion. Death or lethal injuries due to fire or flying debris can result.

  1. 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.
  2. Ensure that unauthorized persons have no access to the product.
  3. Disconnect the AC circuit breaker and secure it against reconnection.
  4. Disconnect the battery from the product via an external disconnection device.

WARNING

Danger to life from electric shock due to circuit breakers that cannot be tripped

In off-grid systems and battery-backup systems, the Sunny Island can only trip circuit breakers up to a certain tripping characteristic. Circuit breakers with a higher operating current cannot be tripped. Under fault conditions, a voltage that poses a danger to life may be present on accessible parts for several seconds. Touching live components can result in death or serious injury due to electric shock.

  1. SI4.4M-12: Check whether a circuit breaker has a higher trip characteristic than B6 (B6A).
  2. SI6.0H-12 and SI8.0H-12: Check whether a circuit breaker has a higher trip characteristic than B16 (B16A) or C6 (C6A).
  3. If a circuit breaker has a higher trip characteristic than the specified circuit breakers that can be tripped, you should also install a residual-current device of type A.

WARNING

Risk of crushing injuries due to moving PV array parts

A generator can be started automatically by the Sunny Island. Moving parts in the PV array can crush or sever body parts.

  1. Operate the generator only with the specified safety equipment.
  2. Carry out all work on the generator in accordance with the manufacturer's specifications.

CAUTION

Risk of burns due to short-circuit currents on the disconnected inverter

The capacitors in the DC input area of the inverter store energy. After the battery is isolated from the inverter, battery voltage is still temporarily present at the DC terminal. A short circuit at the DC terminal of the inverter can lead to burns and may damage the inverter.

  1. Wait 15 minutes before performing any work at the DC terminal or on the DC cables. This allows the capacitors to discharge.

CAUTION

Risk of burns due to hot enclosure parts

Some parts of the enclosure can get hot during operation.

  1. Mount the inverter in such a way that it cannot be touched inadvertently during operation.

NOTICE

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.

NOTICE

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.

NOTICE

Damage to the enclosure seal in subfreezing conditions

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

  1. Only open the product if the ambient temperature is not below -5°C.
  2. 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.

NOTICE

High costs due to inappropriate Internet tariff

Depending on use, the data volume of the product transferred via the Internet may vary in size. The data volume depends, for example, on the number of inverters in the system, the frequency of device updates, the frequency of data transfer to Sunny Portal or the use of FTP push. High costs for the Internet connection can be the result.

  1. SMA Solar Technology AG recommends using an Internet flat rate.
Intended Use
Battery Safety Information