SMA SUNNY HOME MANAGER 2.0 - Connecting the Voltage Supply up to 63 A

8 Connection
SMA Solar Technology AG
Operating manualHM-20-BE-en-1924
8.2.2 Connecting the Voltage Supply up to 63A
L1 L2 L3
NL1 L2 L3
L1 L2 L3
L1 L2 L3
N
Ethernet
OUT
IN
NL1 L2 L3
L1
L2
L3
N
NL1 L2 L3
L1
L2
L3
N
NL1 L2 L3
L1
L2
L3
N
N
Household
Disconnect switch
Energy meter of
the electric
utility company
Main breaker
(three-phase)
Utility grid
Inverters
Sunny Home Manager 2.0
as purchased electricity
and feed-in meter
Delta-IT
3 phase TN/TT 1 phase TN/TT
Split Phase
Radio
Neutral conductor
Line conductor
Meter output, load side
Meter input, grid side
L1/L2/L3
N
OUT
IN
Figure 5: The following figure shows a connection example in TN and TT utility grids in the case of installation at the grid-connection point when
using the integrated measuring unit.
Procedure:
1. Disconnect the connection point from voltage sources and make sure it cannot be reconnected.
2. Connect the line conductors depending on the utility grid conditions to the SunnyHomeManager as follows:
- in Three-phase utility grids connect the line conductors L1, L2, L3 and the neutral conductor N to the screw
terminals at the input of the SunnyHomeManager.
- in Single-phase utility grids connect the line conductor L1 and the neutral conductor N to the screw terminals
at the input of the SunnyHomeManager.
- in Delta IT utility grids connect the line conductors L1, L2 and L3 to the screw terminals at the input of the
SunnyHomeManager. In addition, also connect the line conductor L3 to the neutral conductor N.
- in Split phase grids (split-phase system) connect the line conductors L1 and L2 and the neutral conductor N to
the screw terminals at the input of the SunnyHomeManager.
Open each screw terminal using a cross-head screwdriver, insert the conductor into the contact terminal and
tighten the screw (torque: 2.0Nm).
If you do not want to use the SunnyHomeManager - as provided by default - as a bi-directional device, but should
opt for only one of its two functions, the SunnyHomeManager must be connected as follows: