SMA DC Disconnect Switch For SB 3300-U - Manual (Page 19)

SMA America, Inc. Installation
Installation Guide DC-Discon-U-11:SE4406 13
9 Insert the DC
wires through the
left grommet.
Connect the red
wire to the
terminal block
marked "+" and
the black wire to
the terminal block
marked "-". Mark
the grounded
conductor
according to
NEC 250.
10 Insert the AC
wires through the
right grommet.
Connect the
black wire to L1,
the red wire to L2
and the white
wire to N. NOTE:
the earth-ground
conductor does
not need to be
connected to the
terminal in the
inverter. Ground
is obtained via
the enclosure.