A fuse includes a housing with opposing first and second ends and a first and second fusible element. It also includes first and second ferrules made from aluminum alloy, each electrically connected to the corresponding first and second fusible element. Each ferrule features a side wall and an end wall, with the end wall extending from the side wall to close the first or second end of the housing. Additionally, the end wall includes a boss that extends toward the interior of the housing. Together, the side and end walls form an interior receptacle designed to accommodate the first or second end of the housing.

Disclosed is a fuse resistor provided on an electrical circuit to protect the electrical circuit and elements. The fuse resistor includes a substrate on which first and second resistive terminals and fuse terminals are formed, first and second resistive elements surface-mounted on the first and second resistive terminals and dividing applied current or voltage, and a temperature fuse surface-mounted on the fuse terminals and broken by heat generated from the first and second resistive elements. If overcurrent or overvoltage is applied, the first and second resistive elements generate heat and the temperature fuse is broken by the generated heat.

A fuse protector with a plurality of fuses comprises a fuse protector base, a fuse carrier), and fuse elements. The fuse elements are disposed on the fuse carrier, and the fuse carrier is inserted in the fuse protector base. One side of the fuse protector base is provided with at least two wiring assemblies, and the other side of the fuse protector base is provided with at least two wiring assemblies. The fuse protector base is further provided with base contacts corresponding to the wiring assemblies. The fuse carrier is inserted into the fuse protector base. When the fuse carrier is pulled out of the fuse protector base, at least four breaking points are formed at the same time, and the voltage of an arc is distributed to the four contact points. Therefore, the voltage of the arc is effectively reduced, space is saved.

A circuit breaker for protecting an electric circuit contains a housing and an adapter having a receiving connector. The circuit breaker has two electrically conductive, substantially cylinder-shaped connection points which are positioned along an axis. Either the outer diameter of the connection points is between 5.0 mm and 5.3 mm and the maximum distance between the connection points is between 19.0 mm and 21.0 mm, or the outer diameter of the connection points is between 6.2 mm and 6.5 mm and the maximum distance between the connection points is between 30.5 mm and 33.0 mm.

A fuse terminal includes a central body portion. A first arm extends from the central body portion and defines an arm space that is located on a fuse side of the central body portion. A connector portion also extends from the central body portion and includes a leg that extends on the fuse side of the central body portion.