When should the output neutral of an inverter/charger be grounded?

The output neutral of an inverter/charger should be grounded when inverting. This is grounded to ensure safety and compliance with electrical codes, particularly as it relates to the bonding of the neutral conductor and to mitigate any potential electrical hazards.

When inverting, the system needs to provide a stable and safe output similar to that of a utility supply, including a properly grounded neutral. This grounding minimizes the risk of stray voltages, helps in the proper functioning of overcurrent protection devices, and reduces the possibility of electrical noise, which can interfere with sensitive electronics.

In contexts where the inverter is operating in charger mode or when connected to shore power, different grounding protocols may apply. Therefore, it is essential to understand that grounding practices differ based on operational state, emphasizing the importance of grounding the neutral during inversion to maintain safe and reliable operation.