A fusible switch disconnect device includes a housing adapted to receive at least one fuse therein, and a switchable contact for connecting the fuse to circuitry. A tripping mechanism and control circuitry are provided to move the switchable contact to an open position in response to a predetermined electrical condition.

A protection structure is disclosed and is applied in a fuse link switch. The fuse link switch comprises: an insulator, a fuse tube including an upper connection portion and a lower connection portion, an upper-end fixing unit, a lower-end fixing unit, and a toggle mechanism, wherein the upper connection portion is connected with a pull hook. The protection structure comprises at least one electrically insulating shielding layer covering at least one of the upper-end fixing unit, the pull hook, the upper connection portion, the lower connection portion, the lower-end fixing unit, and the toggle mechanism through overmolding technique.

A fusible switch disconnect device includes a housing adapted to receive at least one fuse therein, and a switchable contact for connecting the fuse to circuitry. A tripping mechanism and control circuitry are provided to move the switchable contact to an open position in response to a predetermined electrical condition.

A fusible switch disconnect device includes a housing adapted to receive at least one fuse therein, and a switchable contact for connecting the fuse to circuitry. A tripping mechanism and control circuitry are provided to move the switchable contact to an open position in response to a predetermined electrical condition.

A switch-fuse module and a ring main unit. The switch-fuse module includes: at least one fuse; and at least one fuse canister having the fuse inside; the security device including: at least one slider configured to linearly move between an open slider position and a closed slider position; at least one earthing switch that i) is galvanically connected to an end of the fuse, ii) is operable between an open and a closed state, iii) is designed to earth the end of the fuse in the closed state, and iv) is coupled to the slider in such a manner that the open slider position effects the open state of the earthing switch and the closed slider position effects the closed state of the earthing switch; an energy-storing propulsion element configured to move the earthing switch from the open to the closed state when discharging; and a locking mechanism adapted for blocking access to the fuse in a locked state and for releasing access to the fuse in an unlocked state, wherein the slider is coupled to the locking mechanism in such a manner that the slider is in the closed slider position while the locking mechanism is in the unlocked state, so that the fuse may only be accessed if it is ensured that the fuse is earthed.

A fusible switch disconnect device includes a housing adapted to receive at least one fuse therein, and a switchable contact for connecting the fuse to circuitry. A tripping mechanism and control circuitry are provided to move the switchable contact to an open position in response to a predetermined electrical condition.

A compact fusible disconnect switch device having a reduced switch housing size and increased power density is configured to be face mounted to a panel. A fuse cover assembly allows installation and removal of a fuse without having to open the panel. Line-side and load-side terminals are provided on a common side of the housing. In-line mechanical ganging and simultaneous application is provided for combinations of the compact fusible disconnect switch devices.

A power supply circuit breaking device includes a first connector housing, a second connector housing, a main lock unit locking in a finally fitted state in which the second connector housing is completely fitted to the first connector housing, a sub-lock unit locking in a temporarily fitted state in which a part of the second connector housing is fitted to the first connector housing, a main switch unit switched on in the finally fitted state and the temporarily fitted state, and a sub-switch unit switched on in the finally fitted state and switched off in the temporarily fitted state. The sub-lock unit includes a sub-lock claw formed in the first connecter housing, and an operation portion provided in the second connector housing and having an engaging plate portion engaged with the sub-lock claw in the temporarily fitted state.

A removal tool accessory for replacing rectangular fuse modules of a fusible switching disconnect device. The removal tool accessory is a single piece part configured to snap-fit with the rectangular fuse module via opposing lateral sides thereof. The accessory includes an opening dimensioned to receive a person's index finger, middle finger, ring finger, and baby finger. A handlebar is provided for optimal mechanical leverage to pull the rectangular fuse module from the fusible switching disconnect device even when access to the rectangular fuse module is restricted.

Circuit breakers are disclosed that include a housing with a line side and a load side, a printed circuit board in the housing, a movable contact arm with an electrical contact, a stationary line side contact, a primary trip solenoid in the housing coupled to the printed circuit board, an armature in the housing, a bimetal member in the housing adjacent the armature and adjacent the primary trip solenoid; and a lockout assembly in the housing. The lockout assembly includes a rod configured to have a first inactive position and a second lockout position. When in the second position and/or as the rod travels to the second lockout position, the rod directly or indirectly pushes the armature toward the bimetal member to physically lock out the circuit breaker to prevent conduction and separate the line side contact from the movable contact arm electrical contact.