Product description BW-BCC
The BW-BCC is a circuit-breaker in performance class 6A and belongs to the BW-B series. It is normally closed, resets automatically and is equipped with connection cables and ceramic insulation.
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Main components of the BW-BCC:
The product consists of a housing, an iron holder, a bimetallic disk, a movable contact, a base and a fixed silver contact.
Structure of the BW-BCC:
The moving contact is welded to the bimetallic disk and then attached to the iron holder. The fixed silver contact and the base are formed into a single unit, whereby the base is then riveted to the iron holder. The current first flows through the moving contact on the bimetal disk from the iron holder and then through the fixed silver contact to form a circuit.
Function of the BW-BCC:
Under normal conditions, the movable contact of the BW-BCC is in close contact with the fixed silver contact under the pre-pressure of the bimetal disk. When the rated operating temperature is reached, the bimetallic disk is deformed by heat and snaps back quickly, interrupting the circuit. After cooling down and reaching the defined reset temperature, the bimetal disk and the spring plate snap back into their initial position, the contacts close again and the BW-BCC resumes its function.
