Vacuum contactor with vacuum arcing acmotortrading.blogspot.com medium,ac motor electric 65kw its main contact seal in a special vacuum arcing tube.When operating coil electricity,armature,absorption in the contact spring and vacuum tube autistic force electric motors price under the action of contact closure;Operating power coil,the armature reaction spring overcome vacuum tube autistic force release,off contact.Contactor breaking current,the contact single phase asynchronous motor will form by the metal steam in the clearance.
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