12 Technical Data
SMA Solar Technology AG
Operating manual
35
NA-BOX-12-3-20-BE-en-12
12 Technical Data
Connection to utility grid
Number of terminals
1 x three-phase
Rated grid input power
138 kW
Rated operating voltage between L and N
230 V
Rated operating voltage between L1 and L2
400 V
Rated current / AC input current
3 x 200 A
Terminals for connection N, PE, L1, L2, L3
Spring-cage terminals
Minimum connectable conductor cross-section
50 mm²
Maximum connectable conductor cross-section
150 mm²
Unaffected short-circuit current / relative rated short-circuit current at the terminals
≤17 kA
Maximum permitted rated current of the back-up fuse
200 A gG
Short-circuit current breaking capacity of the back-up fuse
≥25 kA
Forward current of the back-up fuse
≤17 kA
Multicluster-Box connection
Number of terminals
1 x three-phase
Rated grid input power
138 kW
Rated operating voltage between L and N
230 V
Rated operating voltage between L1 and L2
400 V
Rated current / AC input current
3 x 200 A
Terminals for connection N, PE, L1, L2, L3
Spring-cage terminals
Minimum connectable conductor cross-section
50 mm²
Maximum connectable conductor cross-section
150 mm²
Unaffected short-circuit current / relative rated short-circuit current at the terminals
≤17 kA
Maximum permitted rated current of the back-up fuse
200 A gG
Short-circuit current breaking capacity of the back-up fuse
≥25 kA
Forward current of the back-up fuse
≤17 kA
Connection of grounding
Terminal for grounding conductor connection
Spring-cage terminals
Minimum connectable conductor cross-section
50 mm²
Maximum connectable conductor cross-section
150 mm²