MP Meter Pak meter centers offer a wide range of multimetering applications. MP meter centers have UL Listed indoor rainproof NEMA Type 3R construction which meets EUSERC standards. The 9 inch meter center spacing allows for more sockets per device. This creates lighter and more compact branch enclosures. Four meter socket configurations available with options such as ring or ringless, 4 and 5 jaw, horn or lever, and jaw release. This MPR meter center has four ringless sockets with a no bypass and a 5th jaw. This main lugs unit can be feed from an overhead or underground service. The aluminum main bus ampacity is 400 A. The maximum tenant main lugs amperage is 125 A with a 240 VAC 3 wire single phase maximum. This unit has a NEMA 3R surface mounting enclosure that is 48.12 inches tall, 24.34 inches wide and 7.28 inches deep. This MPR meter center with accept one 1/0 AWG to 600 kcmil or two 1/0 AWG to 250 kcmil copper or aluminum wire. This MPR meter center unit is UL Listed.