SMA MC-Box 6.3 - Manual (Page 39)

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