摘要 |
<p>Mains pressure switch (1) has contact system (9) of moving contact (10) and corresponding counter contact (11). There is actuator (5), coacting with moving contact, for contact system ON and OFF state. Moving of actuator twists switching shaft (12) each time by twist angle. Switching shaft contains eccentric (13) so affecting switching contact, that it alternately moves switching contact for contacting counter contact and/or lifting it off, at twist of switching shaft through its twist angle.</p> |