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 347/600VAC and has four ringed, seven jaw sockets. The meter stack has an 800A rated vertical bus bar and can provide four subservices. The subservice provides 3 phase, 347/600V 200A with a 50kA short circuit current rating. J-Frame 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.