Door latch for electrical equipment enclosure

An enclosure in which a high pressure condition may occur, the enclosure comprising:

• a housing having an interior portion;
• a cover coupled to said housing, having a surface comprising a latching portion and a cover aperture defined therethrough, said cover operable between a first closed position and a second open position;
• a latch rotatably mounted to said housing and disposed to protrude through said cover aperture when said cover is in said first closed position;
• said latch comprising an axis of rotation having a center line oriented orthogonally through said axis of rotation and generally orthogonal to the surface of said cover, said latch being rotatable in a first latching direction with respect to said center line to a first latched position, and rotatable in a second de-latching direction with respect to said center line generally opposite to the first latching direction, to a second de-latched position;
• said latch further comprising a latching surface and configured to engage said latching portion of said cover to prevent movement of said cover from said first closed position to said second open position;
• wherein said cover, when in said first closed position, is configured and disposed to convey a net first rotational force, in response to the high pressure condition, to said latch, the rotational force being in the first latching direction;
• said latching portion of said cover disposed with respect to the centerline of the axis of rotation in said second de-latching direction and to bias said latching portion toward said first latched position in response to the net first rotational force daring the high pressure condition.