Patent ID: 8733853

Claim:
An arc-resistant switchgear enclosure, comprising: a) walls defining an interior compartment, with one wall having a door opening that communicates with the compartment, the door opening lying in a plane, the compartment having a vent outlet that communicates with a vent plenum; b) pins extending from the one wall adjacent to the door opening, the pins extending perpendicular to the door opening plane, each pin having a free end and a stop thereon; c) a door sized to close the door opening, the door having pin openings for receiving the free ends of the pins; d) at least one elongated latch member having keyhole openings that receive the pin free ends, each keyhole opening having a large portion that allows the respective pin stop to pass therethrough and a narrow portion that prohibits a respective pin stop from passing therethrough, the latch member slidingly coupled to the door so that the latch member can selectively move between a latched position and an unlatched position; in the unlatched position, the large portion of the respective keyhole is aligned with the respective pin; in the latched position, the narrow portion of the respective keyhole is aligned with the respective pin, wherein the latch member and the free end of the respective pin in the respective keyhole opening are visible from an exterior of the enclosure.