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MCCB MCB Stamping Parts Static Contact

MCCB Metal Welding Parts

MCCB MCB Stamping Parts Static Contact

Surface Treatment: Electroplating, Silver Plating

Processing Methods: Stamping, Forming, Thread Tapping, Spot Welding

Material: T2-Y2 Copper

Specification: Customized

Trademark: OEM/ODM

Origin: Wenzhou, China

A stationary contact, or static contact, is a crucial component within a circuit breaker, forming part of the electrical contact system. Here is a detailed explanation of the stationary contact:

    product description

    Definition:
    A stationary contact is a fixed conductive element inside the circuit breaker, positioned opposite the movable contact. When the circuit breaker is closed, the stationary contact makes contact with the movable contact, completing the electrical circuit. When the circuit breaker is open, the stationary contact is separated from the movable contact, breaking the circuit.

    Material Composition:
    Stationary contacts are typically made from highly conductive metals such as copper or silver alloys. These materials offer excellent electrical conductivity as well as good resistance to oxidation and corrosion.

    Functions:
    Conductive Function: The primary role of the stationary contact is to establish a path for current flow by making contact with the movable contact.
    Current Interruption: During the operation of the circuit breaker, the stationary contact engages or disengages with the movable contact, enabling the circuit to open or close.
    Arc Quenching: When interrupting high currents, the separation of the stationary contact from the movable contact generates an arc. The design of the stationary contact includes features to rapidly extinguish the arc, protecting the internal components of the circuit breaker.

    Structural Design:
    The stationary contact is designed to ensure adequate contact pressure when the circuit breaker is closed, minimizing contact resistance and preventing overheating.
    Typically, the contact surface of the stationary contact is made relatively flat to ensure good contact with the movable contact.

    Applications:
    Stationary contacts are widely used in various types of circuit breakers, including molded case circuit breakers (MCCBs), air circuit breakers (ACBs), and vacuum circuit breakers (VCBs). Their performance directly affects the reliability and safety of the circuit breaker.
    In summary, the stationary contact is a fixed conductive element in a circuit breaker that, along with the movable contact, facilitates the opening and closing of the electrical circuit, ensuring safe operation and protective functionality.

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