This generator will have GFCI protection on the receptacles that is integral to the generator. This means that if you donít switch the neutral the GFCI device will trip every time you switch the breaker in the panel.
This generator will need to be installed as a separately derived system, meaning the neutral will need to be switched in the transfer switch.
A UL standard for portable generators now requires this.
[Engine Generators] Engine Generators for Portable Use
This category covers internal-combustion-engine-driven generators rated 15 kW or less, 250 V or less, which are provided only with receptacle outlets for the ac output circuits. The generators may incorporate alternating- or direct-current generator sections for supplying energy to battery-charging circuits.
When a portable generator is used to supply a building or structure wiring system:
1. The generator is considered a separately derived system in accordance with ANSI/NFPA 70, "National Electrical Code" (NEC).
2. The generator is intended to be connected through permanently installed Listed transfer equipment that switches all conductors other than the equipment grounding conductor.
3. The frame of a Listed generator is connected to the equipment-grounding conductor and the grounded (neutral) conductor of the generator. When properly connected to a premises or structure wiring system, the portable generator will be connected to the premises or structure grounding electrode for its ground reference.4. Portable generators used other than to power building or structure wiring systems are intended to be connected to ground if required by the NEC.
I highly recommend that you save a bunch of money and simply use cords to power what ever you need powered by this generator during a power outage. The amount of time used to go to the panel to switch from one circuit to another to keep from over loading the generator will be about the same as moving the cord from one appliance to the other.
Keep in mind that this generator will not power more than about 25 to 30 amps for any amount of time without damaging the generator output board.