AF Compact Low - Voltage Circuit Breakers
نویسنده
چکیده
In order to protect wiring, facilities, human bodies and the like from electric accidents such as overcurrent to the load, a short circuit, ground fault or earth leakage of an electrical line, low-voltage circuit breakers, as typifi ed by molded case circuit breakers (MCCB) and earth leakage circuit breakers (ELCB), are installed in every type of machine, equipment, facility and building that uses electricity. In 1990, Fuji Electric released its “TWIN Breaker” series that, for the fi rst time in the world, featured MCCBs and ELCBs with common external dimensions. In 2001, Fuji Electric launched the “α-TWIN Breaker” series of 32 to 100 AF products in the industry’s smallest size. These features contribute to the miniaturization and the design standardization of panel equipment and machines, Fuji Electric has, therefore, received the support of many customers. In response to the globalization of the market, in 2009, Fuji Electric launched the “G-TWIN Series” that conforms to international standards including IEC and UL (1) . This paper describes the features, miniaturization technology and breaking technology of 32 to 63 AF compact MCCBs and ELCBs that have been developed as a new lineup for the G-TWIN Series.
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