An arc-resistant switchgear enclosure has an interior compartment with a door opening and a vent outlet. The door is mounted to close the door opening. The door receives pins that extend from the enclosure. The pins have stops thereon that are received by a keyhole in the latch member. The latch member can slide so as to position the pin in a large opening in the keyhole and unlatch the door or a narrow opening in the keyhole to latch the door. The latch members are ganged so that a handle operates all of the latch members.