SMA SI 5048, Technical Description

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SMA Solar Technology AG Electrical Connection
Technical Description SI5048-TEN093630 33
6.2.3 Cable protection
In addition to the internal DC circuit breakers, install a separate, external fuse as close as possible to
the battery. Install a suitable fuse plug for the fuse according to the maximum specified DC current
(e.g NH1 at 250 A).
6.2.4 Connection
There is a "DC − " and a "DC +" connection available for each ring cable lug (max. 70 mm²) for the
battery feed cables in the Sunny Island.
DANGER!
Risk of lethal electric shock! Death or serious burns.
If no external cable protection is available, observe the following:
• Lay the DC cables so that they are ground- and short-circuit-proof.
• If there are short-circuit currents of over 10,000 A, use an additional fuse.
DANGER!
Danger to life due to high voltages Death or serious burns.
• Connect the external fuse and the battery cable to the battery only after all
installation work has been completed.