Square D EZ Meter-Pak branch meter compartmentsprovide a compact footprint for multi unit construction applications. This branch unit supplies one phase in, one phase out with a three wire configuration. It is rated for 120/240VAC and 225A. The meter socket compartment has four ringless, five jaw meter sockets. The compartment has three horizontal 1200A rated busbars with copper vertical connectors. The busbars come with Visi-Tite joint nuts for connections, eliminating the need for torque readings. It is compatible with 40A to 125A two-pole plug-on QO circuit breakers, using adapter EZM125QOA or with PowerPact Q circuit breakers. It is compliant with UL standards and the steel enclosure has a rating of NEMA 3R.