Fronius DC Box 60/12 MET, Operating Instructions Manual, Page: 55 / 68

53
EN-US
Connecting Solar Module Strings to the Fronius DC
Box 60/12
Safety
Notes for Con-
necting Solar
Module Strings to
the
Fronius DC Box
60/12
Recommended sequence for inserting and connecting DC cables
Terminal assign-
ment for ground-
ed solar modules For grounded solar modules, only the ungrounded poles of the solar module strings may
be connected to the fuse-protected terminals (A).
WARNING! An electric shock can be fatal. Danger from DC voltage from solar
modules.
-
Make sure that the input and output sides in front of the device are not
charged before connecting anything.
- Any and all connections should only be carried out by qualified electricians.
- Follow the safety rules in these operating instructions.
NOTE! Only use a DC cable with the correct polarity at
the terminals for DC cable 'IN' and at the terminals with
fuse holders for DC cable 'IN'.
NOTE! To ensure problem-free DC cable connections to the terminals, the length
of the DC cables should be no less than 330 mm (measured from the inside bot-
tom edge of the Fronius DC Box 60/12).
NOTE! Observe the sequence when inserting and connecting DC cables: from
bottom to top and from the inside outwards.
1 2 3
4 5 6
7 8 9 10 11 12
1 2 3 4
5 6 7 8
9 10 11 12
Negative solar module ground
DC- DC+
B (in) B‘ (out) A‘ (out) A (in)
Positive solar module ground
DC+ DC-
B (in) B‘ (out) A‘ (out) A (in)