What is the height requirement for switch and outlet installations according to the NEC?

The National Electrical Code (NEC) specifies that the height for switches and outlets is typically set between 15 to 48 inches above the finished floor. This range is designed to ensure accessibility for most people, allowing for comfortable operation of controls without requiring people to stretch excessively or bend down.

The lower limit of 15 inches is particularly important in ensuring that outlets are accessible for use with common electrical devices, while the upper limit of 48 inches is established to accommodate the reach of a typical adult. This range also aligns with safety considerations, preventing installations that might be too low and pose hazards or too high to be easily accessible.

By adhering to this height requirement, electricians can ensure compliance with the NEC and improve usability in residential and commercial environments.