Benefits of Futina's Circuit Breaker

  • High Breaking Capacity


  • Mechanical Life

    10000 times

  • Wide Range Working Temperature


How does Circuit Breakers Work?


  • ​latch Arrangement

    ​latch Arrangement

    It consists of a bimetallic strip and a plunger arrangement inside. Also, there is a latch arrangement made to hold the contacts closed, when it is turned ON.

  • Heated Up

    Heated Up

    The bimetallic strip is designed to carry a specific amount of current through it. When the current flowing through it exceeds the limit, the bimetallic strip gets heated up and it bends. 

  • Bend


    As it bends, it knocks down the latch holding the contacts. Higher the current faster shall be the operation.

  • Maximum Limit

    Maximum Limit

    Similarly, during short circuits, the current flowing through the miniature circuit breaker shall be several times the maximum limit.

  • Opens the Contacts

    Opens the Contacts

    This activates the plunger arrangement instantaneously, which in turn knocks down the latch and opens the contacts. This is how a miniature circuit breaker works.

Quality Testing of Futina's Circuit Breaker
Quality Testing of Futina's Circuit Breaker

Quality Testing of Futina's Circuit Breaker

Breaking Capacity4KA/6KARated Current6A~63A
Rated Frequency (Hz)50/60HzRated Insulation Voltage(Ui)5oov
Working Temperature-5°C~40℃Mechanical Life10000
Protection LevelIP20InstallationDin rail

Get in Touch with Futina

Get in Touch with Futina

We are looking forwards to work with you!

Guangdong Futina Electrical Co., Ltd.

If you have any product inquiry, Please feel free to contact us.


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