An enclosure (200; 700) for a power supply, comprising: a first compartment (201; 400; 701B); a second compartment (202; 500; 702) located adjacent to the first compartment; and an arc fault path, comprising: an intermediate pressure relief flap (204; 405; 704B) located inside the enclosure (200; 700) in between the first compartment (201; 701B) and the second compartment (202; 702), and a top pressure relief flap (205; 504; 705) located on an external surface of the second compartment (500; 702); the intermediate pressure relief flap (204; 405; 704B) and the top pressure relief flap (504; 705) configured to be closed in the absence of an arc fault (207; 707) in the enclosure (200; 700), and the intermediate pressure relief flap and the top pressure relief flap configured to open based on the presence of the arc fault (207; 707) in the enclosure (200; 700), such that plasma from the arc fault (207; 707) vents from the first compartment into the second compartment (202; 500) via the opened intermediate pressure relief flap and out of the second compartment (202; 702) via the opened top pressure relief flap (504; 705), wherein the top pressure relief flap further comprising a connection configured to attach the top pressure relief flap to the external surface of the second compartment (202; 500), and a latch that is engaged with the external surface of the second compartment (202; 500) in the absence of the arc fault. a first compartment (201; 400; 701B); a second compartment (202; 500; 702) located adjacent to the first compartment; and an arc fault path, comprising: an intermediate pressure relief flap (204; 405; 704B) located inside the enclosure (200; 700) in between the first compartment (201; 701B) and the second compartment (202; 702), and a top pressure relief flap (205; 504; 705) located on an external surface of the second compartment (500; 702); the intermediate pressure relief flap (204; 405; 704B) and the top pressure relief flap (504; 705) configured to be closed in the absence of an arc fault (207; 707) in the enclosure (200; 700), and the intermediate pressure relief flap and the top pressure relief flap configured to open based on the presence of the arc fault (207; 707) in the enclosure (200; 700), such that plasma from the arc fault (207; 707) vents from the first compartment into the second compartment (202; 500) via the opened intermediate pressure relief flap and out of the second compartment (202; 702) via the opened top pressure relief flap (504; 705), wherein the top pressure relief flap further comprising a connection configured to attach the top pressure relief flap to the external surface of the second compartment (202; 500), and a latch that is engaged with the external surface of the second compartment (202; 500) in the absence of the arc fault. an intermediate pressure relief flap (204; 405; 704B) located inside the enclosure (200; 700) in between the first compartment (201; 701B) and the second compartment (202; 702), and a top pressure relief flap (205; 504; 705) located on an external surface of the second compartment (500; 702); the intermediate pressure relief flap (204; 405; 704B) and the top pressure relief flap (504; 705) configured to be closed in the absence of an arc fault (207; 707) in the enclosure (200; 700), and the intermediate pressure relief flap and the top pressure relief flap configured to open based on the presence of the arc fault (207; 707) in the enclosure (200; 700), such that plasma from the arc fault (207; 707) vents from the first compartment into the second compartment (202; 500) via the opened intermediate pressure relief flap and out of the second compartment (202; 702) via the opened top pressure relief flap (504; 705), wherein the top pressure relief flap further comprising a connection configured to attach the top pressure relief flap to the external surface of the second compartment (202; 500), and a latch that is engaged with the external surface of the second compartment (202; 500) in the absence of the arc fault.