What is the minimum rating for service disconnects that require ground-fault protection according to Section 230.95?

The minimum rating for service disconnects that require ground-fault protection according to Section 230.95 is indeed 1,000 A. This stipulation is based on safety standards aimed at preventing electrical shock and fire hazards. Ground-fault protection is critical in systems where the risk of ground faults can lead to significant safety concerns, particularly at higher amperage levels.

Service disconnects rated at 1,000 A or more represent a level of electrical capacity where the potential hazards associated with ground faults become more pronounced. The implementation of ground-fault protection helps ensure that any fault conditions are quickly detected and addressed, minimizing risks to personnel and equipment.

Lower amperage service disconnects, such as those rated at 500 A or 750 A, do not have the same requirement under this section, as the associated risks are typically considered to be manageable without additional ground-fault protective measures. This distinction in rating underscores the importance of adhering to safety regulations tailored to specific electrical system capacities.