GENERATOR PORT
The GridBOSS can utilize supplemental 240VAC generator power for backup and battery charging in
the case of a grid failure. When the grid power goes down, the generator port can supply power to the
backup port, the hybrid ports, and the configured smart ports. To support automatic generator startup,
the GridBOSS has a 2-wire start/stop terminal for controlling 2-wire start-capable generators.
For optimal performance, it is highly recommended that a generator have less than 12% Total Harmonic
Distortion (THD). To achieve a lower THD value, the generator should be sized by at least 1.5x the total
output of all inverters. This will allow for powering loads and charging batteries.
Reference the table below for wire size and torque recommendations when connecting the generator
port wiring.
SUPPORTED BREAKER SIZE SUPPORTED WIRE SIZE* MAX. TORQUE VALUE
see torque value printed on breaker
*Size wire according to breaker amperage/system needs
NOTE
:
When operating a hybrid inverter with the GridBOSS, all generator support will
come directly through the GridBOSS generator port. The generator port on
each hybrid inverter must not be used.
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