PowerMark Gold Meter Socket Load Centers are an ideal option for residential applications. Additonally, PowerMark Gold Meter Socket Load Centers provide increased reliability and maximum circuit layout flexibility. All our PowerMark Gold Meter Socket Load Centers are built with high-quality materials for extended durability. Furthermore, their perfected design allows for an easy and fast installation. The TSM4020UWCU is a main breaker meter socket with a ring and features spaces for 40, 1" breakers, a 200A main ampere rating, a copper bus, and an outdoor suitable, wide surface enclosure.