EG4 FLEXBOSS21 - Ac Wiring Information

24
7.6 AC WIRING INFORMATION
When sizing AC wires, adhere to the following information:
Ground-Neutral Bonding
The information below describes the nature of the ground and neutral in the inverter and their
relationship to the system. Always consult with an installer or a licensed electrician to ensure that the
right configuration is being used:
• The Neutral of the AC Input and the AC Output are common (known as a Common Neutral
Architecture).
• The neutral line between the AC input and AC output is never disconnected.
• The inverter never creates a ground-neutral bond in any mode of operation.
Terminal
Connection
Cable Size Torque Values
Max. Amperage
Rating
Grid
6 – 4/0 AWG
(26.7 mm
2
– 107mm
2
)
95 – 165 in-lbs.
(10.7Nm – 18.6Nm) depending on wire
50A
Load
6 – 4/0 AWG
(26.7 mm
2
– 107mm
2
)
95 – 165 in-lbs.
(10.7Nm – 18.6Nm) depending on wire
66.7A
NOTE:
If using in conjunction with the GridBOSS, the Load port is not used; see section 9 for
more information.
IMPORTANT:
The system should have only one ground-neutral bond (this is typically the Main
Bonding Jumper located at the service entrance main breaker).