DASS 3.0i LV (DSP-123i-ODS)
User manual
Copyright © DASS Tech Co., Ltd
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It is not allowed for several inverters to use the same circuit breaker.
It is not allowed to connect loads between inverter and circuit
breaker.
AC breaker used as disconnect device,and the disconnect device
shall remain readily operable.
Caution
Context
All the AC output cables used for the inverters are outdoor three-core cables.
To facilitate the installation, use flexible cables. Table 4-2 lists the recommended
specifications for the cables.
Figure 4-9 NOT allowed: connect loads between inverter and circuit breaker
Table4-2 Recommended AC output cable specifications
Model
DASS 3.0i LV (DSP-123i-ODS)
Cable(Copper)
≧
6mm
²
Breaker
25A/400V
Multi core copper wire
AC cable should be correctly sized to
ensure the power loss in AC cable is less than
1% of the rated power. If the resistance of the
AC cable is too high, it will cause a huge
increase in the AC voltage, which may lead to a
disconnection of the inverter from the electrical
grid. The relationship between power loss in AC cable and wire length, wire cross
sectional area is shown in the following figure
：
Figure 4-10 wire length, wire cross sectional area and wire power loss
