12 Technical Data of the Multicluster Box 12.3 SMA Solar Technology AG
42 MC-BOX-6_12-BE-en-20 Operating Manual
12 Technical Data of the Multicluster Box 12.3
General Data
Sunny Island Connection
PV System Connection
Load Connection
Number of line conductors Three-phase
Nominal voltage (range) 230 V / 400 V
(172,5 V to 250 V / 300 V to 433 V)
Nominal frequency (range) 50 Hz (40 Hz to 70 Hz)
Permitted grid configuration TN
Mounting type / Installation type Upright on a base
Quantity 12
Rated current 3 x 104.3 A
Rated power 72 kW
Maximum connectable conductor cross-section 16 mm²
Fuses 12 x circuit breaker C32A
Quantity 1 (three-phase)
Rated current 3 x 160 A
Rated power 110 kW
Diameter of stud terminals 10 mm
Maximum torque of stud terminal 10 Nm to 20 Nm
Maximum connectable conductor cross-section 120 mm²
Fuses None
Quantity 1 (three-phase)
Rated current 3 x 160 A
Rated power 110 kW
Diameter of stud terminal for connecting N and grounding
conductor
10 mm
Diameter of the screws at the fuse switch-disconnector for
connecting L1, L2 and L3
8 mm
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