8556070000

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• Power Relays, Over 2 Amps
• 8556070000 Application Field and Working Principle
  • Application Field
    • The8556070000 power relay is used mainly for large-current load control, and it is especially suitable for infrequent operation environment.
    • By making use of it, frequency start, control and protection of single-phase motor pumps, various industrial equipments, like air-compressors, and household appliances, like refrigerator and water heaters, can be accomplished.
    • Moreover, it can be used in occasions, like marine vessels, post and telecommunications, machine automation, light controlling industry, fire-fighting, medical treatment, food and beverage machines, and financial equipments.
  • Working Principle
    • The contactor consists of main parts, such as electromagnetic system, contact system, and arc extinguishing system.
    • Theframe and armature are connected with the main contact and auxiliary contact together. Below these components, there is the pressure spring, which serves as the resetting device.
    • When the electric current passes through the solenoid, the generated magnetic force will produce the armature motion. Consequently, the contactor contact point is pressed against the moving contact and the static contact, thus closed.
    • After removing the current, the current stops, and the magnetic force from the solenoid Vanishes, the contactor contact point would leave the static contact point restored by the pressure spring action.
    • Moreover, the arc extinguishing point indicates that the value of maximum electrical power and current is restricted, which is regulated by the outer arc extinguishing cover and the arc extinguishing block.

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