Battery Wiring - Helios COMBO SPH3600-BL SERIES User Manual

HELIOS COMBO SPH3600/5000-BL
When using multiple inverters, don't connect PV port in parallel to avoid inverter damage, as shown in
Figure4-16.
Figure4-16 Don't connect PV port in parallel
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4.5 Battery Wiring

Add DC switch K2 between battery and inverter to avoid arcing when wiring. The recommended switch
is with 80Vdc/100A.
Don't connect positive and negative of battery reversely to avoid inverter damage.
Fasten battery cover and nylon cable gland firmly to avoid that water drops into wiring terminals.
The recommended wire is AWG6 or the cross-sectional area of wire is 16mm².
Step 1 Connect battery with one end of battery switch K2 and switch off battery switch K2.
Step 2 Prepare wires and strip the insulation layer of wires for about 7mm. Loosen the nylon cable gland in
the battery cover and draw the wires through it, cover the heat-shrinkable sleeve, crimp the terminals,
tighten the heat-shrinkable sleeve and lock them in the inverter, as shown in Figure4-17.
Step 3 Connect the other end of wires with battery switch K2.
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4 Electrical Connection