What is a ground fault interrupter?

It's a safety device that shuts off the power if a wire in an outlet develops a leak that could electrocute someone. This hazard is so serious that the National Electrical Code requires all new homes be equipped with them in the bathroom, kitchen, workroom, outdoor, basement, garage and swimming pool circuits.

Need to know how to install a ground fault interrupter?

Check your state and local codes before starting any project. Follow all safety precautions. Information in this document has been furnished by the North American Retail Hardware Association (NRHA) and associated contributors. Every effort has been made to ensure accuracy and safety. Neither NRHA, any contributor nor the retailer can be held responsible for damages or injuries resulting from the use of the information in this document.