Thermal excess current relay - has movable lever carrying bridge contact at each end for connection of fixed and movable contact pairs

摘要

The relay has fixed and movable contacts and a movable lever with a stable position in contact with the fixed contacts. The movable contacts can move from a first position in which the movable lever is in a second stable position, to a second position in which the lever automatically returns to its first position. The contact lever is a two-armed lever rotatable about its middle and carrying a bridge contact at each end. The movable and fixed contacts are twin contacts connected by the corresponding bridge contact.