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APsystems YC500 Quick Design Guide                    

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Step 1.  

Verify that the grid voltage matches the 
microinverter specifications.

Step 2. 

Install the AC branch circuit junction box.

Step 3.

  Connect the cables to the AC branch circuit 

junction box.

1.   Connect the open wire end of the AC branch end splice cable into 

the junction box using an appropriate gland or strain relief fitting.

2.  Wire the conductors: L1- RED; L2 - BLACK; N -WHITE.

3.   Connect the AC branch circuit junction box to the point of utility 

interconnection.

Step 4.  

Attach the APsystems microinverters to the racking 
or the PV module frame.

Figure 1

Figure 2

Figure 3

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