| 摘要 |
<p>A balance-armature type polar relay (10) capable of assuring a sufficient insulation distance meeting the requirements of IEC60950 with the structure of itself when mounted on an electric communication line connecting equipment, wherein a maximum distance between one movable contact and one fixed contact capable of being brought into contact with each other during the travel of an armature is set at 1 mm or more, and at least one of the contact surfaces of the armature and the iron core polar surfaces of electromagnets opposed to the contact surfaces is formed as an inclined surface reducing an angle of opposed surfaces at the time of mutual contact as small as possible, whereby the armature passes, during the travel thereof, a position where each of the pair of contact surfaces faces the pair of corresponding iron core polar surfaces in parallel with each other.</p> |
