A meter breaker is service entrance equipment that consists of a single meter socket and loadcenter or meter socket and main breaker combined in one enclosure. Sometimes called combos, all-in-ones, meter centers or meter mains these units are increasing in popularity as the socket and loadcenter or main breaker are located in one location, thus providing the contractor with a labor and material savings when installing. In addition to residential installations, meter breakers are equally applicable for rural service entrance, mobile homes and construction site temporary power. The popularity of meter breakers is continuing to increase as more utilities deregulate and pass the responsibility of supplying watt-hour meter sockets on to the electrical contractor.
Additional Info: Enclosure: NEMA 3R