A current interrupting device includes: a current limiting element provided on a power supply path from a predetermined power supply to a load device, the current limiting element being configured to exhibit a current limiting action when current flowing the power supply path exceeds a first current threshold value; a current diversion path switch capable of switching on and off of an electric conduction of a current diversion path, the current diversion path switch being connected in parallel with the power supply path; and a controller configured to control on and off of the current diversion path switch, wherein, the controller is configured to: switch the current diversion path switch on from an off state when it is detected that current flowing the current limiting element is limited to a second current threshold value after the current flowing the current limiting element has exceeded the first current threshold value; and switch the current diversion path switch off again after a predetermined switched-on holding time has elapsed since the current diversion path switch has been switched on.

A current interrupting device includes a current limiting element on a power supply path from a predetermined power supply to a load device. The current limiting element is configured to exhibit a current limiting action when current flowing in the power supply path exceeds a first current threshold value. The current interrupting device further includes a current diversion path switch, and a controller programmed to control on and off of the current diversion path switch. The controller is programmed to switch a current diversion path switch on from an off state when it is detected that current flowing in the current limiting element is limited to a second current threshold value after the current flowing in the current limiting element has exceeded the first current threshold value, and switch the switch off again after a predetermined switched-on holding time has elapsed since the switch has been switched on.

The present invention relates to a multistage fuse, and more particularly, to a multistage fuse including: a fuse module including a first fuse bar formed in a bar shape as a conductive member; a melted portion which supports the first fuse bar and is melted when overcurrent flows; and a second fuse bar which supports the melted portion; and a contact terminal which contacts the first fuse bar by elastic force, in which when the overcurrent flows on the melted portion, the melted portion is melted to disconnect the first fuse bar and the contact terminal.

The present invention relates to a multistage fuse, and more particularly, to a multistage fuse including: a fuse module including a first fuse bar formed in a bar shape as a conductive member; a melted portion which supports the first fuse bar and is melted when overcurrent flows; and a second fuse bar which supports the melted portion; and a contact terminal which contacts the first fuse bar by elastic force, in which when the overcurrent flows on the melted portion, the melted portion is melted to disconnect the first fuse bar and the contact terminal.

The present invention relates to a multistage fuse, and more particularly, to a multistage fuse including: a fuse module including a first fuse bar formed in a bar shape as a conductive member; a melted portion which supports the first fuse bar and is melted when overcurrent flows; and a second fuse bar which supports the melted portion; and a contact terminal which contacts the first fuse bar by elastic force, in which when the overcurrent flows on the melted portion, the melted portion is melted to disconnect the first fuse bar and the contact terminal.