INVT XG50KTR

Three-phase Grid-tied Solar Inverter Electrical connection
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5.4 Three-phase inverter grid access
Table 5-1 Three-phase photovoltaic inverter AC connector interface description
Inverter AC
connector interface
Three-phase grid
Remarks
L1
L1（A）
No phase sequence
L2
L2（B）
No phase sequence
L3
L3（C）
No phase sequence
N
N(Neutral line)
Support N-wire and non-N-wire
connection
PE ground wire (grounding point
on the outside of the chassis)
Must be connected
5.4.1 Connection terminal grid access
(1) Connect the four wires of the three-phase public power grid L1, L2, L3 and N to the AC connector
interface according to Table 5-1, and connect the grounding wire to the grounding point on the outside of
the chassis, and ensure that the conductors are crimped firmly without exposure , As shown in Fig 5.6;
Fig 5.6 Crimp cable terminal
(2) Then tighten the L1, L2, L3, N, crimped terminals according to Fig 5.7 to a torque of 7-9N•m, and
the PE grounding torque of the outer side of the chassis to a torque of 7-9N•m; then tighten the AC
Tighten the waterproof cap.
Fig 5.7 Three-phase inverter grid connection