DIY User Manual

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10-539-1 MN5048DIY REV -
MN5048DIY
User Manual
2.2 Wiring specifications and circuit breaker selection
Wiring and installation must comply with national and local electrical codes.
Recommended PV array wiring specifications and circuit breaker selec t ion: Since the output current of
the PV array is affected by the type, connection method and illumination angle of the PV module, the
minimum wire diameter of the PV array is calculated according to its sho r t circuit current; refer to the
short-circuit current value in the PV module specification (the sh o r t-circuit current is constant when
the PV modules are connected in series; the short -circuit current is the sum of the short circuit currents
of all PV modules connected in parallel); the sho r t circuit current of the PV array shall not exceed the
maximum input current.
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Refer to the table below for PV input wire diameter and switch:
Models
Recommended PV
wiring diameter
Maximum PV
input current
Recommended
circuit breaker type
MN5048DIY
10 AWG
18A
MNEPV20 or MNEDC20
Note: The voltage in series shall not exceed the maximum PV input open circuit voltage.