Connecting The Power Cable Of The Battery - SMA SUNNY BOY STORAGE 2.5 Operating Manual

6 Electrical Connection
6.3.2

Connecting the Power Cable of the Battery

Damage to the DC connectors due the use of contact cleaner of other cleaning agents
Some contact cleaners or other cleaning agents may contain substances that decompose the
plastic of the DC connectors.
• Do not use contact cleaners or other cleaning agents for cleaning the DC connectors.
Danger to life from electric shock due to live DC cables when connecting an PV array
If the DC connectors with the DC cables of the PV array were accidentally connected to the
inverter, the high voltages of the PV array are present at the DC conductors. Touching the DC
conductors or the live components leads to lethal electric shocks.
• It is imperative that the DC connectors are not disassembled during the day.
• Stop working on the inverter and wait until dark.
• If you would like to leave the PV system to continue work when it is dark, set up protection
against contact (e.g. a fence).
• Disassemble and then assemble the DC connectors again only once it is dark.
Requirements:
☐ Only the supplied connectors for connecting the battery power cable may be used.
☐ The length of the battery power cable must not exceed 10 m.
Procedure:
1. Ensure that the DC connectors have the correct polarity.
If the DC connector is equipped with a DC cable of the wrong polarity, the DC connector must
be reassembled. The DC cable must always have the same polarity as the DC connector.
2. Connect the assembled DC connectors to the
inverter.
☑ The DC connectors snap into place.
3. Ensure that all DC connectors are securely in place.
32 SBS25-1VL-10-BE-en-10
SMA Solar Technology AG
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Operating Manual