The MNPV4-1000 uses 1000 volt fuse holders (MNTS) and fuses (MN1000FUSE) sold separately. Includes a 15 position PV negative bus bar, 14 position ground bus bar, and positive bus bar. (For 1000VDC grid tie inverters) Gray aluminum type 3R rainproof enclosure with insulating dead front, will accept 4 1000VDC fuse holders.