Mike Dolt Enterprises
Mike Dolt Enterprises
User: hhsting, Location: Glen bunie, md, us
Asked on: Tuesday, June 1, 2021 at 9:10 pm EDT
Answered on: Thursday, June 20, 2024 at 11:31 am EDT
Question: I have tenant that has office space and pantry. Plans show that the pantry has 1kW, 120V single phase dishwasher panelboard direct wired fed from junction box. The Panelboard feeding dishwasher is located in electrical room outside of tenant space but on same floor.Dishwasher is appliance correct. The plans just show junction box at the dishwasher no disconnect.Would not the dishwasher require external disconnect next to it or does dishwasher come with disconnect that qualifies as disconnect? I read NEC 2017 section 422 but its confusing. Your thoughts and opinions appreciated
NEC Requirements for Dishwasher Disconnect NEC 422.31(A)(2) requires that a dishwasher have a readily accessible, externally operable switch or circuit breaker for disconnection from all ungrounded conductors. NEC 422.30 defines a disconnecting means as a switch or circuit breaker that opens all ungrounded conductors of an appliance, and that is intended for use only as a disconnecting means.
Application to Your Situation
Based on the information provided, it appears that the dishwasher does not have an external disconnect next to it. The plans only show a junction box at the dishwasher. Therefore, you would need to provide an external disconnect compliant with NEC 422.31(A)(2) for the dishwasher.
Dishwasher Disconnect Included in Appliance
Some dishwashers come with an internal disconnect that meets NEC requirements. However, it is not common for dishwashers to have internal disconnects, and it is not clear from the given information whether the dishwasher in question has one.
Conclusion
To ensure compliance with NEC requirements, it is recommended that you: Inspect the dishwasher
Determine if it has an internal disconnect that meets NEC 422.30 and 422.31(A)(2).
If no internal disconnect: Install an external disconnect, such as a wall-mounted switch or circuit breaker, next to the dishwasher. This disconnect should open all ungrounded conductors of the dishwasher and be readily accessible. Flag for review