Circuit protection device

A device suitable for arrangement in a circuit for protection of components in the circuit, comprising

• a temperature responsive electrical regulating means including a conductive polymer means or ceramic means having an electrical regulating capability dependent on temperature,
• first switch means arranged in series with the temperature responsive electrical regulating means, the switch means including trip means for opening the circuit and positively terminating current flow in a reliable manner, and
• means for connecting the temperature responsive electrical regulating means and first switch means in the circuit,
• the trip means of the first switch means comprising an elongated member arranged in a conductive housing and responsive to temperature for opening the circuit, the conductive polymer or ceramic means being arranged adjacent to and in conductive relation with the housing in order to assure rapid response of the circuit protection device.

A device suitable for arrangement in a circuit for protection of components in the circuit, comprising

• a temperature responsive electrical regulating means including a conductive polymer means or ceramic means having an electrical regulating capability dependent on temperature,
• first switch means arranged in series with the temperature responsive electrical regulating means, the switch means including trip means for opening the circuit and positively terminating current flow in a reliable manner, and
• means for connecting the temperature responsive electrical regulating means and first switch means in the circuit,
• the trip means of the first switch means comprising a ferrite magnetic switch in order to assure rapid response of the circuit protection device.

A device suitable for arrangement in a circuit for protection of components in the circuit, comprising

• a temperature responsive electrical regulating means including a conductive polymer means or ceramic means having an electrical regulating capability dependent on temperature,
• first switch means arranged in series with the temperature responsive electrical regulating means, the switch means including trip means for opening the circuit and positively terminating current flow in a reliable manner,
• means for connecting the temperature responsive electrical regulating means and first switch means in the circuit,
• a second switch means of similar construction as the first switch means and arranged in series with the temperature responsive electrical regulating means and with the first switch means.

A device suitable for arrangement in a circuit for protection of components in the circuit, comprising

• a temperature responsive electrical regulating means including a conductive polymer means or ceramic means having an electrical regulating capability dependent on temperature,
• first switch means arranged in series with the temperature responsive electrical regulating means, the switch means including trip means for opening the circuit and positively terminating current flow in a reliable manner, and
• means for connecting the temperature responsive electrical regulating means and first switch means in the circuit,
• the trip means of the first switch means comprising an elongated member arranged generally coaxially in a cylindrical housing, the temperature responsive electrical regulating means also being arranged within the housing adjacent one end of the elongated member.