Square D Horizontal Ganged Meter Sockets are single phase power distribution panels used in residential applications. These meter sockets are NEMA 3R enclosures that are supplied with ground lugs and top endwall hub opening. This requires the use of a bolt on hub or closing plate. Horizontal Ganged Meter Sockets are 600 VAC and main lugs only. This product is a ringless type with no bypass, underground or overhead service feed, and has 4 positions. It also is rated at 200A with 4 jaws. When using the interior option, this product comes with main lugs rated at 360A. UL Listed rated.