Abstract: A fuse handling device for use with a fuse unit having a pair of contacts between which a fuse terminals which act as switching contacts may extend in use. The handling device comprises an actuating lever operable into a first position and a second position, a charging means operably connected to the actuating lever and a drive means operably connected to the charging means. The handling device in use is mounted on the fuse unit. The drive means attaches to the fuse and operation of the actuating lever into the first position charges the charging means to causes the drive means to extract the fuse from the pair of contacts and operation of the actuating lever into the second position charges the charging means to cause the drive means to insert the fuse into the pair of contacts. The fuse moves in a direction parallel to a plane of its switching contacts.

Abstract: An electrical isolator has an insulated housing with input and output conductors (1, 2) therein. A spring contact (6) is mounted within the housing for movement between open and closed positions. An insulating shroud (15) fully shields that part of the bridging contact accessible through an access opening of the housing. Manually operable pressure applying structure may be operated when the bridging contact is in the closed position to control that contact between a tightened condition applying pressure between the bridging contact and the conductors without the use of springs, and a free condition wherein the contact pressure is reduced. An interlock assembly prevents engagement and disengagement of the operating member with the pressure applying structure unless the bridging contact is located in either the closed or open position.

Abstract: An electrical assembly, for example for use in low voltage supply distribution, comprises a fixed casing (4) for each of three phases. A pair of fixed contacts (e.g. 11, 12) are spaced apart within the casing and set back from an opening into the casing. A fuse carrier (29) is mounted for rectilinear sliding movement within the casing between a first position adjacent to the opening and a second position. In the second position movable contacts (30, 31) on the carrier engage the fixed contacts to close a circuit therebetween. A drive unit (50) is provided for mechanically driving the carrier between the two positions, the drive unit being a self-contained mechanism comprising a housing and a drive member movable relative thereto. The drive member can be detachably coupled to the contact carrier, and means (58, 60) provided for releasably locking the drive housing to the fixed casing.