(!)NOTE : Windows 7 users won’t be able to use some latest features of eCatalog/WOS since Microsoft is ending support for Windows 7 on 14 Jan, 2020. Please upgrade your system for uninterrupted services.

  • Due to the ongoing COVID pandemic, we are expecting an increase in the delivery lead time of our shipments due to delay in domestic transportation. We request you to kindly bear with us. For any information please contact us at CS@misumi.co.in. We apologize for the inconvenience and appreciate your kind patience and understanding.
  • Due to current drastic freight increment, we may suspend to receiving orders for long profile product more than 2,600mm length. If you have any inquiries, please contact with CS@misumi.co.in or call to +91-124-468-8800.

Circuit Breakers

Circuit breakers are safety devices that automatically interrupt the circuit when an excessive current is detected. Circuit breaker components include a switch mechanism, trip unit, arc chute, contacts, and more. These components are housed in a molded case with good insulation characteristics. Circuit breakers are generally called "breakers". Classifications are made by interrupting types and applications. Interrupting types can be classified into thermal magnetic, electromagnetic and electronic. Applications can be classified into safety breakers, motor breakers, 3-wire single phase neutral conductor protection breaker and JIS-compliant breakers. All types are designed for circuit protection and must be selected according to the rated current of the device to which the breaker is installed.