Photo shows MNPV3 with either breakers or fuses for reference only. Breakers are not included. Includes 6 position PV negative bus bar, 6 position ground bus bar, and 60 amp Plus bus bar. For 150 VDC to 300VDC charge controllers and up to 600 VDC grid tie inverters. The most popular PV combiner in North America. Gray aluminum type 3R rainproof enclosure with insulating dead front, will accept (3) 150VDC breakers or (2) 600VDC fuse holders. Multiple knockouts in bottom of enclosure can accept bulkhead mount MC connectors for faster on roof time and ease of installation & maintenance. Listed by ETL for US & Canada. 10.5″L x 4.5″W x 3.5D. 14″L x 9″W x 4D. Feel free to ask questions. We will answer any question as soon as possible.