REFUsol 20K-2T (853P020.200)
User manual
Ban multiple Inverters use one circuit breaker.
Ban connect loads between inverter and circuit breaker
Must use five core outdoor cable, the recommend AC cable and Residual current
breaker (RCB) as below table 5-1:
Cross section
area of Cu
cable（mm
2
）
Muti-core
outdoor cable
（mm）
AC Circuit Breaker
specification
REFUSOL 20K-2T
(853P020.200)
50A/230V/3P current
leakage protection
0.1A
Table 5-1 The recommend AC cable and Residual current breaker (RCB)
Figure 5-5 Incorrect connection between load and inverter
The resistance at connection point must less than 2
Ω
. In case to have a properly
anti-islanding function, please choose the high-quality PV cable and ensure the
power loss is less than 1%. Meanwhile, the inverter AC side to grid connection
point must less than 100m. the relation between cable length, cross section area
and power loss as below:
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