Helios COMBO SPH3600-BL SERIES User Manual page 29

HELIOS COMBO SPH3600/5000-BL
Step 5 Connect the other end of grid wires with AC switch K3 and then connect K3 with smart meter or grid.
Connect the other end of load wires with AC switch K4 and then connect K4 with load circuit that
needs back up power.
⚫ If inverter is equipped with smart meter, connect the neutral wire and live wire of AC switch K3
with L, N ports in the input of smart meter. Connect L, N ports in the output of smart meter with
total grid switch K6, as shown in Figure4-4.
Figure4-4 Smart meter wiring
⚫ If inverter isn't equipped with smart meter, connect the neutral wire and live wire of AC switch
K3 with total grid switch K6.
Step 6 After wiring, install the AC cover and then tighten the nylon cable gland.
Figure4-5 AC output wiring
When using multiple inverters, don't connect BACK UP port in parallel or connect BACK UP port with
grid to avoid inverter damage, as shown in Figure4-6 and Figure4-7.
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4 Electrical Connection