Address: Wenzhou Bridge Industrial Zone
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Geya: Your Best

Molded Case Circuit Breaker (MCCB) Manufacturer

Geya molded case circuit breaker with its rated insulation voltage of 1000V, is a perfect choice for distribution applications, especially for places with higher request for protections against overload, short circuit and under voltage, so as to maintain power supply reliability. Also, with the robust and compact structure of the molded case circuit breaker, it is able to withstand environment of humidity, salt and oil mist.

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All Types Geya

MCCB Molded Case Circuit Breaker

GYCM3, GYCM3L, GYCM3E series circuit breaker, is the new upgraded product developed with advantages of similar international products and domestic and foreign market demand. Rated insulation voltage this series up to 1000V, suitable for power distribution network with AC 50Hz, rated voltage 400V (690V), rated current to 800A, used for distribution of electrical energy and protection the circuit and power equipment from overload, short circuit, under-voltage, and other faults. At the same time, it can also be used as the infrequent start and overload, short circuit, under-voltage protection of the motor. The circuit breaker has the characteristics of small size, high breaking capability, and short flying arc. The circuit breaker can be installed vertically or horizontally.

This product conforms to iec60947-2, GB/T14048.2, and other standards.

Geya molded case circuit breaker with its rated insulation voltage of 1000V, is a perfect choice for distribution applications, especially for places with a higher request for protection against overload, short circuit, and under-voltage, so as to maintain power supply reliability.


Molded Case Circuit Breaker(MCCB) trip curve/characteristic curve diagram:

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Why Geya

Molded Case Circuit Breaker (MCCB)

  • Compact design, robust structure, high breaking capacity, high short arcing withstanding capability and vibration resistance.
  • Flexibility of installation, either vertical or horizontal, eases its installation.
  • Design with insolation function, improves safety of maintenance.
  • Compact design
  • Size of the product is more compact, meets different installation requirements of customers.
  • Uniform size
  • Under same case grade, unformed installation dimension for different breaking capability (S, H), different function (air,
  • leakage).
  • Optimized function parameter setting
  • Applicable working and installation condition
  • Attitude below 2000 meters
  • Ambient temperature is < +40℃(+45℃ for Marine products) and > -5℃
  • Resistance against humidity
  • Resistance against mold
  • Resistance against nuclear radiation
  • Maximum inclination 22.5°
  • Work reliably under normal vibration of the ship
  • Work reliably in case of earthquake (4g)
  • To be installed in an environment without conductive dust, explosion risk, and metal parts and insulation shall
  • be protected against corrosion.
  • Protected against rain and snow
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Molded Case Circuit Breaker (MCCB)

  • Rated current: 25~800A
  • Insulation voltage: 1000V
  • Rated impulse withstanding voltage: 12KV
  • Rated operation voltage: 400-690V
  • Number of Poles: 3P/4P
  • Rated short circuit breaking current: 25-100KA
  • Product features
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At GEYA, we understand the need for keeping all devices safe, while making your business competitive. With over 10 years’ experience, GEYA products are certified CCC, CE, CB, SAA, SEMKO, TUV and ROSH industry standards.

Additionally, GEYA engineers help clients in choosing the best materials depending on the application. As a leading Molded Case Circuit Breaker (MCCB) manufacturer, GEYA adheres to a strict quality electrical process. Feel free to contact us for custom made and affordable Molded Case Circuit Breaker (MCCB).