EG4 GRIDBOSS - Page 27

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If a first service disconnect is already installed after the power meter, the GridBOSS will be attached in
series with the existing first service disconnect. In this case, the bonding jumper should not be used.
If there are questions concerning the neutral ground bond, contact a licensed electrician for assistance.
GRID PORT
The grid input supplies power to the GridBOSS in a grid-assisted configuration. When connecting to the
grid, there are two configuration options. The first option uses lugs, which are factory-installed. The
second option uses the 200A Eaton CSR2200N (CSR25K) breaker, which is optional and must be
purchased separately. To install the 200A Eaton breaker, follow the steps in section 6.4.
Reference the table below for wire size and torque recommendations when connecting the grid port
wiring.
BREAKER SIZE
MAX.
SUPPORTED
BREAKER SIZE
SUPPORTED WIRE SIZE
MAX. TORQUE
VALUE
TOOL SIZE
Lugs -
4 – 2/0 AWG
110 in-lbs. (12Nm)
5/16 in. (8 mm)
3/0 AWG – 250 kcmil
275 in-lbs. (31Nm)
5/16 in. (8 mm)
200A (optional)
200A
4/0 AWG – 300 kcmil
250 in-lbs. (28Nm)
1/4-inch hex
IMPORTANT
:
The system should have one and only one neutral-ground bond. (This is
typically the main bonding jumper at the first service entrance disconnect.)