This upper busbar chamber is a power distribution accessory that is mounted on PanelSet SFN floor enclosures made of decarbonized steel. It contains recycled steel produced with renewable energy, resulting in a significant reduction in CO2 emissions. It has nominal dimensions of 300 mm in height, 600 mm in width, and 600 mm in depth. The frame and supports of the chamber are made of galvanized steel to ensure a long service life. The panels are made of sheet steel. An epoxy-polyester powder coating provides a smooth appearance. The chamber is gray (RAL 7035) with a black (RAL 9005) handle. It comes with a seal, front and rear walls, and four eye screws. The chamber has an IP55 protection rating, meaning it is resistant to the ingress of dust, water, and oil. The enclosure is also impact-resistant and has an IK10 rating. Operation is convenient with access from the back, front, and sides.