EG4 GRIDBOSS - Page 32

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HYBRID INVERTER PORTS
The GridBOSS hybrid ports connect to supported EG4
®
hybrid inverters. When cabling the AC
connection to the hybrid inverter, only connect the inverter’s grid port to the GridBOSS hybrid port. See
the chart below for supported EG4 hybrid inverters.
Reference the table below for wire size and torque recommendations when connecting the hybrid port
wiring.
HYBRID
PORT
SUPPORTED
INVERTER
MODEL
SUPPORTED
BREAKER SIZE
SUPPORTED
WIRE SIZE*
TORQUE VALUE
1 – 3
12kPV
50A
6 AWG
see torque value printed on breaker
18kPV
70A
4 AWG
FlexBOSS18
90A 2 AWG
FlexBOSS21
*Size wire according to breaker amperage/system needs
WARNING:
• The only inverters that can be connected to the hybrid ports are the 12kPV,
18kPV, FlexBOSS18, and FlexBOSS21. DO NOT connect any other inverter to
the hybrid ports, as this could damage the inverter being connected to the
GridBOSS.
• Use the proper breaker sizing and wiring requirements described below for
each hybrid inverter. Do not use a breaker rated higher than what is
supported; this could damage the equipment.
IMPORTANT:
When operating a hybrid inverter connected to the GridBOSS, the inverter’s
load port must be unused and turned off. The inverter’s grid port supports
input and output power based on the inverter’s settings.