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6.3 Maximum AC Short-Circuit Current
According to requirements for safety protection, PV Inverters shall have a
short circuit test on the AC output circuit. The following table describes the
test result of the AC Short-Circuit Current that the PV Inverter had.
Table 6.3.1: AC Short-Circuit Current
Maximum Short-Circuit Current and Duration Period
Ipeak
Irms
Duration
306A
178A
<1s
Note: Do not exceed the Irms value for choosing the output breaker.
6.4 Knockouts for the AC and DC wiring
PV Inverters is equipped with different size of knockouts in the wiring box
which can be used for the cable configuration of DC-side and AC-side. For
the convenience of the installer or system integrator, knockouts can be
utilized in four different directions and there are two different sizes of the
knockouts available to be selected as shown in figure 6.4.2 and figure 6.4.3.
The diameter and number of knockouts on different sides of the Inverter are
listed in Table 6.4.1 as the reference for installation.
Figure 6.4.1: Knockout Directions of Wiring Box
Left side
Right side
Back side
Bottom side
