These panel instrument enclosures are made of sheet steel (type 443) or plastics (type 446) with a 19” mounting system. They offer mounting possibilities from front and rear and may also be supplied with a transparent door. Both types are available in three different variants. Type 443 can be delivered with a door, without a door or as an empty enclosure. Type 446 is also available as an empty enclosure or it can be made as an enclosure electrical connector (rear: integrated module rail) or enclosure BUS (rear: BUS-module rail).