
6 Electrical Connection
SMA Solar Technology AG
Installation Manual
SBxx-1SP-US-40-IA-xx-15
50
14.
WARNING
Fire hazard due to faulty conductor connection
If the conductors are inserted into the actuation shafts (right-angled openings), a fire may
occur during inverter commissioning.
• Connect the conductors to the terminal block as described in the following.
15. Connect the conductors to the terminal block in
accordance with the labeling. Insert each conductor
into the corresponding terminal point (round
opening) up to the stop. Always connect the positive
terminal and the negative terminal of a string to the
same input, and keep in mind that the terminals
C+
and
C-
of inverters with two DC inputs must not be
assigned.
DC-in
1
A+ B+ C+ A− B− C−
16. Ensure the conductors are plugged into the terminal
points (round openings) as far at is will go and not
into the actuation shafts (rectangular openings).
DC-in
1
A+ B+ C+ A− B− C−
DC-in
1
A+ B+ C+ A− B− C−
17. Ensure that the terminal points are allocated to the correct conductors.
18. Ensure that the conductors are plugged completely into the terminal points up to their
insulation.
ENGLISH
Summary of Contents for SB3.0-1SP-US-40
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