| 摘要 |
<p>This invention relates to a circuit connection device having overvoltage/overcurrent protection function for communication equipments which can eliminate an overvoltage and an overcurrent. In order to protect communication equipment from overvoltage and overcurrent, a surge absorption element (2) is connected in parallel with terminals for connecting the equipment, and a metal wire (3) having a low melting point is connected in series with them in the proximity of the surge absorption element (3). The communication equipment is protected from surges between the lines of the communication equipment and between the lines and the ground by the surge absorption element and from continuous overvoltage and overcurrent by the low-melting metal wire because the surge absorption element is overheated and the metal wire blows out by the heat.</p> |
