Square D EZ Meter-Pak main devices are available as main circuit breakers, main fusible switches, or main lug terminal boxes. EZM main lugs terminal boxesprovide connection points for metering configurations. This main lug terminal box connects three phases in, three phases out with a four wire configuration. It is rated for 208Y/120VAC or 240/120VAC delta and main rated current of 225A. It is suitable for underground or overhead service feed. This 225A terminal box has an isolated neutral that can't be bonded, so not suitable for use on the line side of service equipment. The compartment has four horizontal 800A rated busbars. The busbars come with Visi-Tite joint nuts for connections, eliminating the need for torque readings. It is compliant with UL standards and the steel enclosure has a rating of NEMA 3R.