Is a shut-off switch or disconnect required for all electric water heaters?

A shut-off switch or disconnect is indeed required for all electric water heaters as a safety measure. This requirement helps prevent accidental electrocution and allows for safe servicing of the unit. Having a readily accessible disconnect means that in emergencies or during maintenance, the power can be quickly and easily turned off without having to access the main electrical panel.

The National Electrical Code (NEC) stipulates guidelines that mandate proper disconnects for electrical equipment, including electric water heaters, to ensure that they can be safely controlled and deactivated without exposing maintenance personnel to live electrical components. This enhances the safety in both residential and commercial settings, protecting users and technicians alike.

By having a dedicated shut-off switch, compliance with safety standards is maintained, minimizing risks associated with electric shock and potential electrical fires.