These steel frameworks are purpose-built to assemble a PanelSeT SFN floor standing modular decarbonized steel electrical enclosure for various applications. It contains recycled steel, which is produced with renewable energy, resulting into a significant reduction of CO2 emissions. This set of top and bottom frames and roof has a nominal width and depth of 300 mm and 800 mm, respectively. It is made of galvanized steel for durability. An epoxy-polyester powder finish provides a smooth appearance. It has a grey (RAL 7035) color. The enclosure has UL Types 3R/12 rating and an IP55 rating, which makes it resistant to dust, water and oil ingress. The enclosure is also resistant to impacts, with an rating. Operation is convenient due to rear, front, and side access.