POMCube iCAN NetZero Plus, User Manual

Page: 32 / 48

28
External Wiring
WARNING: All external ports should be equipped with switches.
CAUTION: All cables shall be connected in sequence as listed in this manual.
NOTE: The actual connection depends on your application case. Not all the ports
are necessary to be connected.
(1)
Refer to the table below for minimum copper wire sizing and ratings.
Voltage
Rating Temp.
Class Gauge
AC/Ground 600V 75°C 8AWG (8.37mm2)
PV/Battery 600V 75°C 10AWG (5.26mm2)
12Vdc/AFCI
Communication
30V 60°C 24AWG (0.204mm2)
Ethernet 30V 60°C Standard Ethernet cable
(2)
Refer to the table below for minimum external switch sizing and ratings
Voltage Rating Current Rating
AC 600V 63A
PV 600V 30A
(3)
Connect Universal PCS to ground.
CAUTION: As the inverter is transformer-free, neither positive nor negative
polarities of PV arrays shall be ground connected; otherwise, it may present
a risk of inverter failure. In a photovoltaic energy system, all metal
components that are non-current-carrying, e.g. brackets, combiner boxes,
distribution boxes, inverter boxes, shall be grounded.