Abstract: An apparatus includes a cabinet with a door. A circuit interrupting device is installed in the cabinet. A plate on the door is operative to shift the circuit interrupting device between ON and OFF conditions upon movement of the plate between ON and OFF positions. A handle on the door is linked with the plate to move the plate between the ON and OFF positions upon movement of the handle between corresponding positions. Additionally, a latch is supported the door for movement into and out of a locked position in which the latch blocks movement of the plate to the ON position. A driving member is moveable against the latch to move the latch into the locking position against the bias of a spring. A key moves the driving member against the latch.

Abstract: An electric meter housing and a cover have adjacent circular flanges reaching circumferentially about a cover axis. A clamping ring has a first end portion, a second end portion, and a cross-section configured for the ring to take an installed position fitted radially over the adjacent circular flanges. A gear moves the first end portion of the clamping ring circumferentially relative to the second end portion upon rotation of the gear. A manual actuator rotates the gear upon rotation of the actuator about an axis that is parallel or substantially parallel to the cover axis when the clamping ring is in the installed position. The gear is movable axially into and out of a blocked position in which a stop member blocks rotation of the gear. The actuator is interconnected with the gear to move the gear rotationally and axially relative to the stop member.

Abstract: An apparatus includes a cabinet with a door. A circuit interrupting device is installed in the cabinet. A plate on the door is operative to shift the circuit interrupting device between ON and OFF conditions upon movement of the plate between ON and OFF positions. A handle on the door is linked with the plate to move the plate between the ON and OFF positions upon movement of the handle between corresponding positions. Additionally, a latch is supported the door for movement into and out of a locked position in which the latch blocks movement of the plate to the ON position. A driving member is moveable against the latch to move the latch into the locking position against the bias of a spring. A key moves the driving member against the latch.