ARC-FREE ELECTROMAGNETIC CONTACTOR

摘要

A B S T R A C TAn improved electromagnetic contactor without arc-generation wherein the silver contacts are omitted byimproving the contact portions between the fixed terminalsand the movable piece to separate the semi-conductor com-pletely from the power supply under open-circuit condition.In the contactor, the cylindrical holes are provided ineach silver contact portions of the fixed terminals, thecircumference of which are rounded to fit with the cur-vature radius of the contact portions which project fromthe conductive movable piece. The conductive pins woundby the coil springs are supported by the insulating platesto be isolated from the fixed terminals and also elect-rically connected via the subsidiary terminals to oneterminal and a gate of triac, respectively.