Square D Meter Centres provide a compact and versatile metering and distribution centre for today's residential, commercial, and industrial markets. All metering stacks have factory installed meter sockets and vertical bus bars, requiring only onsite installation of circuit breakers and main bus links. All meter stacks are designed for CSA Type A "cold metering," sub-service breakers connected on the line side of the meter sockets, protecting the meter and downstream electrical equipment. This Square D Meter Centre meter stack is 3 phase, 4 wire 120/208VAC and has three ringed, five jaw sockets. The meter stack has a 375A rated vertical bus bar and can provide three subservices. The subservice provides 1 phase, 120/208V 125A with a 22kA short circuit current rating. QOB or QOB-VH circuit breakers are accepted for the subservice breaker. The meter centres meet CSA standards and the box is a steel NEMA Type 1 grey baked enamel enclosure.