(!)As Microsoft support for Windows 7 will end on 14th Jan 2020, Windows 7 will be excluded from the recommended environment on MISUMI website from 15th Dec 2019. It will be recommended to update your OS and browser to latest version.

  • MISUMI has been approved as Essential Service provider and we will continue our operation. Please note that some products may take longer than standard lead time due to flights cancellation / rescheduled / Japan supplier’s manufacturing lead time. Kindly contact us at +65 6733 7211 / +65 6333 9298 / +65 6333 9442 for further assistance. Please click here for more COVID-19 Updates. For Stock items: Same day ship out service is available, if order is placed by 11am SGT.
  • Please be informed that our operating hours will be from 9:00 ~ 15:00 for upcoming Polling Day holiday on 10th July 2020. Read more

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.