The Twin Breakers have advanced to an entirely new stage.
Conforming to IEC & local Standards
Conforming to certifications and standards in major world markets Expanded frame sizes in G-TWIN Global Series.
Compact & High performance
Compact models with unified dimensions meeting UL489 480V and IEC 440V requirements.
Fuji Electric launched the Twin Breaker Series to world markets in 1990, in which molded case circuit breaker (MCCB) and earth leakage circuit breaker (ELCB) types were unified in external dimensions for the first time in the world. The Twin Breaker Series was highly evaluated and gained strong support, and the concept of Twin Breakers was established as Japan's
de facto standards for MCCBs and ELCBs.
de facto standards for MCCBs and ELCBs.
In 1992, Fuji Electric released the Super Twin Breaker Series, which enabled user installation of internal accessories for the first time in Japan. In 1995, Fuji Electric released the Super 60 Series and advanced modularization via uniform external dimensions. In 2001, Fuji Electric launched the α-Twin Series to further advance the miniaturization and modularization of economic types with 100A frame or less as Japan's first multi-standard circuit breakers satisfying domestic and international standards. Since then, Fuji Electric has been making further product improvements by predicting market trends.
In recent years, market globalization has increasingly accelerated. At the end of 2004, the Japanese Industrial Standards (JIS) were aligned with the IEC standards, and the globalization in this field has been further accelerated. Based on the Twin Breaker Series, Fuji Electric has expanded the range of its products conforming to and approved by international standards for global markets, always advanced the innovative development of fundamental technologies in response to the market demand, and developed the G-TWIN Series of MCCBs and ELCBs.
GLOBAL-TWIN
Conforming to IEC & local Standards
Conforming to IEC & local Standards
Molded Case Circuit Breakers
G-TWIN series
Type number nomenclature
G-TWIN series
Type number nomenclature
Molded Case Circuit Breakers
Solid-state trip types
Description
Solid-state trip types
Description
• Equipped with a load current pre-trip alarm Constantly monitors the load current, and outputs an alarm when the set current is exceeded.
• Adjustable rated current The rated current is easy to vary in 5 to 6 steps using an adjustment dial.
• Wide-range-adjustable trip characteristics The current and time for instantaneous tripping and short-/ long-time delay tripping can be set by the user.
• Adjustable ground fault tripping determinate and set a current level for ground fault detection in the ranging between 10% to 40% of the rated CT current.
• Adjustable rated current The rated current is easy to vary in 5 to 6 steps using an adjustment dial.
• Wide-range-adjustable trip characteristics The current and time for instantaneous tripping and short-/ long-time delay tripping can be set by the user.
• Adjustable ground fault tripping determinate and set a current level for ground fault detection in the ranging between 10% to 40% of the rated CT current.
Air circuit breakers
DH series
DH series
The newly designed DH series air circuit breakers have excellent features as follows:
• The height and depth dimensions are identical in all sizes up to 3200AF
• Incresed accessibility from the front enhances easy of installation, operation and maintenance
• No extra arc space required, This will assist in minimizing switchboard height and costs
• Very fast interruption by double break system
• Selective trip protective coordination functions
• The height and depth dimensions are identical in all sizes up to 3200AF
• Incresed accessibility from the front enhances easy of installation, operation and maintenance
• No extra arc space required, This will assist in minimizing switchboard height and costs
• Very fast interruption by double break system
• Selective trip protective coordination functions
