Abstract: A circuit breaker device includes a bimetallic overcurrent protection element which is configured to be placed in series with an integrated replaceable fuse. The replaceable fuse may be faster-acting than the bimetallic overcurrent protection element, and may be higher-rated than the bimetallic overcurrent protection element. The circuit breaker device may include an electrically isolated terminal stud having a height sufficient to retain the replaceable fuse thereon, the electrically isolated terminal stud not directly connected to the bimetallic overcurrent protection element, so that current can only flow through the bimetallic overcurrent protection element when a replaceable fuse comprising an intact fuse element is supported on the electrically isolated terminal stud.

Abstract: A circuit breaker device includes a bimetallic overcurrent protection element which is configured to be placed in series with an integrated replaceable fuse. The replaceable fuse may be faster-acting than the bimetallic overcurrent protection element, and may be higher-rated than the bimetallic overcurrent protection element. The circuit breaker device may include an electrically isolated terminal stud having a height sufficient to retain the replaceable fuse thereon, the electrically isolated terminal stud not directly connected to the bimetallic overcurrent protection element, so that current can only flow through the bimetallic overcurrent protection element when a replaceable fuse comprising an intact fuse element is supported on the electrically isolated terminal stud.

Abstract: A switch with an integrated overcurrent protection element can include multiple arc gap between the contacts when opening the circuit during overload protection and switching operations. The switch can include an overcurrent protection element which can make contact with two contact terminals, and which can change to a different shape upon exposure to an overcurrent condition. The overcurrent protection element can also be moved in a direction normal to the two contact terminals between a first position and a second position through the use of a rotary switch to selectively place the overcurrent protection element in contact with the two contact terminals.

Abstract: A circuit breaker device includes a bimetallic overcurrent protection element which is configured to be placed in series with an integrated replaceable fuse. The replaceable fuse may be faster-acting than the bimetallic overcurrent protection element, and may be higher-rated than the bimetallic overcurrent protection element. The circuit breaker device may include an electrically isolated terminal stud having a height sufficient to retain the replaceable fuse thereon, the electrically isolated terminal stud not directly connected to the bimetallic overcurrent protection element, so that current can only flow through the bimetallic overcurrent protection element when a replaceable fuse comprising an intact fuse element is supported on the electrically isolated terminal stud.

Abstract: An electric current responsive circuit breaker device includes a housing formed from electrically insulating material and the housing has an internal compartment and an open end. The circuit breaker further includes a thermostatic snap-action blade and first and second electrically conductive contacts such that the first contact has a stationary position disposed within the internal compartment and the second contact is disposed on the thermostatic snap-action blade. Further, the first and second contacts are coupled such that electric current flows through the contacts when the temperature of the thermostatic snap-action blade is below a threshold level, and the thermostatic snap-action blade bends to uncouple the second contact from the first contact when the temperature of the thermostatic snap-action blade is at or above the threshold level so that electric current does not flow through the first and second contacts after the first and second contacts are uncoupled.

Abstract: A lighted circuit breaker status indication device includes a light guide made of one of transparent and translucent material. At least one light source is configured to illuminate the light guide. The light source is coupled to a circuit breaker by at least one electrical contact. A status circuit path of the light circuit breaker status indication device is coupled to the circuit breaker and configured to provide power to the light source when the circuit breaker is both energized and open, and not to provide power to the light source when the circuit breaker is one of not energized and closed.

Abstract: A fuse includes a fusible element and a body member encased within a heat-resistant housing. The fusible element is configured to open an electrical circuit coupled to a storage battery in response to an over-current in the electrical circuit. The housing is configured to contain an arc generated by the fusible element in response to the over-current and to shield the arc and the fusible element from ambient particles. Thus, the fuse is ignition protected. The body member includes an insulating material configured to interrupt the arc. The housing includes an opening configured to receive a terminal of the storage battery or a terminal of a mounting plate. An insulating material disposed about a first end of the mounting plate terminal is configured to electrically isolate the fuse and a power supply cable in the electrical circuit from the mounting plate terminal.

Abstract: A fuse includes a fusible element and a body member encased within a heat-resistant housing. The fusible element is configured to open an electrical circuit coupled to a storage battery in response to an over-current in the electrical circuit. The housing is configured to contain an arc generated by the fusible element in response to the over-current and to shield the arc and the fusible element from ambient particles. Thus, the fuse is ignition protected. The body member includes an insulating material configured to interrupt the arc. The housing includes an opening configured to receive a terminal of the storage battery or a terminal of a mounting plate. An insulating material disposed about a first end of the mounting plate terminal is configured to electrically isolate the fuse and a power supply cable in the electrical circuit from the mounting plate terminal.