The MNPV12 is a 12-string PV combiner for 150VDC charge controllers and 600VDC grid tie inverters. It is a gray, aluminum, type 3R rainproof enclosure with insulating dead front. It will accept 12 of the 150VDC breakers or 10 of the 600VDC fuse holders. It can support two inverters of up to 5 strings each, or a transformerless inverter of up to 5 strings.