SMA Solar Technology AG
11 Technical Data of the Multicluster Box 6.3
Operating Manual
MC-BOX-6_12-BE-en-20
39
PV System Connection
Grounding Connection
AC input current
3 x 80 A
Maximum relative short-circuit current at the feed-in terminal
≤ 25 kA
Diameter of stud terminal for connecting N
6 mm
Diameter of stud terminal for connecting the grounding conductor 6 mm
Diameter of the screws at the fuse switch-disconnector for
connecting L1, L2, L3
8 mm
Maximum torque of stud terminal
6 Nm
Maximum torque of the fuse switch-disconnector
14 Nm
Maximum connectable conductor cross-section
35 mm²
Fuse
LV/HRC size 00
Maximum allowed fuse rating
80 A
Quantity
1 x three-phase
Rated power of the PV system
55 kW
Rated operating voltage between L and N
230 V
Rated operating voltage between L1 and L2
400 V
AC current at rated values
3 x 80 A
Maximum relative short-circuit current at the feed-in terminal
≤ 17 kA
Maximum nominal current of the pre-fuse
80 A
Breaking capacity of the pre-fuse in case of short-circuit current
≥ 25 kA
Cut-off current of the fuse
≤ 17 kA
Diameter of stud terminal
6 mm
Maximum torque of stud terminal
6 Nm
Maximum connectable conductor cross-section
35 mm²
Fuse
Not available
Diameter of the screws on the fuse element for connecting the
grounding conductor
6 mm
Maximum torque
6 Nm
Maximum connectable conductor cross-section
35 mm²
