SternWake
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The PD9245 chassis ground is to basically ground the AC side of things to the DC ground.
You can just run the PD outputs right to the battery terminals without issue, but technically the dedicated grounding LUG should go to the Chassis, as well as the third prong on the AC side of things.
Grounding the casing of the PD should reduce some electrical noise too.
I am nowhere near as familiar with the AC side of things as I am DC. I think there are a few NEC certified electricians here who can give a better explanation of the need/requirement for grounding the casing of the PD to the Chassis.
You can just run the PD outputs right to the battery terminals without issue, but technically the dedicated grounding LUG should go to the Chassis, as well as the third prong on the AC side of things.
Grounding the casing of the PD should reduce some electrical noise too.
I am nowhere near as familiar with the AC side of things as I am DC. I think there are a few NEC certified electricians here who can give a better explanation of the need/requirement for grounding the casing of the PD to the Chassis.