Abstract: A panel device includes a protective cover that has an insertion hole for an ON/OFF knob of a molded case circuit breaker and is formed to cover an exposed live part of the molded case circuit breaker and provided with an engaging part at a predetermined portion thereof; a cover support member that openably and closably supports this protective cover; and a cover locking member that engages with the engaging part when the protective cover is closed and restricts turning of the protective cover; wherein any one of the protective cover, the cover support member and the cover locking member is movably provided in conjunction with movement of the ON/OFF knob, and the engaging part and the cover locking member are engaged with each other or released from each other by the movement of the any one of those.

Abstract: In a unit apparatus in which units each equipped with a device are disposed in multiple stages and are attached to a housing, the unit apparatus includes: a device-protecting cover which is disposed on the front surface side of the unit and is formed by bending an upper part or a lower part thereof to protect the device; and a unit frame body having a unit base which is disposed in lapped relation on one of the bent upper part surface or the bent lower part surface of the device-protecting cover. The device-protecting cover and the unit frame body constitute a unit chamber; and the units are disposed in multiple stages in said housing, whereby the other of the bent upper part surface or the bent lower part surface of said bent device-protecting cover is shielded.

Abstract: A panel device includes a protective cover that has an insertion hole for an ON/OFF knob of a molded case circuit breaker and is formed to cover an exposed live part of the molded case circuit breaker and provided with an engaging part at a predetermined portion thereof; a cover support member that openably and closably supports this protective cover; and a cover locking member that engages with the engaging part when the protective cover is closed and restricts turning of the protective cover; wherein any one of the protective cover, the cover support member and the cover locking member is movably provided in conjunction with movement of the ON/OFF knob, and the engaging part and the cover locking member are engaged with each other or released from each other by the movement of the any one of those.

Abstract: In a unit apparatus in which units each equipped with a device are disposed in multiple stages and are attached to a housing, the unit apparatus includes: a device-protecting cover which is disposed on the front surface side of the unit and is formed by bending an upper part or a lower part thereof to protect the device; and a unit frame body having a unit base which is disposed in lapped relation on one of the bent upper part surface or the bent lower part surface of the device-protecting cover. The device-protecting cover and the unit frame body constitute a unit chamber; and the units are disposed in multiple stages in said housing, whereby the other of the bent upper part surface or the bent lower part surface of said bent device-protecting cover is shielded.