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MA40HU Series

High-Voltage Air Circuit Breaker
MA40HU series air circuit breaker is suitable for distribution network with AC 50/60Hz, rated working voltage AC800V, AC1000V, AC1140V, rated current 400A~4000A, which is used to distribute electrical energy and protect the line and power supply equipment from overload, undervoltage, short circuit, single-phase grounding and other fault hazards.

Product Features

Ultimate Protection for Safe and Reliable


● Multiple controller options, with complete protection functions, meeting the needs of different scenarios of applications
● Zero flashover for the whole series to ensure maximum safety of electricity
● Whole series of frame circuit breakers with Ics=100%Icu up to 100kA

High environmental adaptability and reliable performance


● It has passed the tests of high and low temperature, high altitude, alternating humidity and heat, salt spray, long mold and vibration in strict accordance with national standards, meeting the reliable operation of wind power and extreme photovoltaic environment.
● Imported DMC material, with high insulation characteristics and impact strength
● Optimized internal structure design, effectively improving the electrical life, with an electrical life of up to 12,500 cycles

High rated voltage


● Rated voltage covering AC800V, AC1000V, AC1140V, meeting the application needs of mainstream models in wind power and photovoltaic industries


Solution

  • Rail Transit

    The low-voltage power distribution system of rail transit metro provides low-voltage power supply for all electromechanical equipment required for operation except traction load, laying great emphasis on the reliability and effectiveness of the power supply of low-voltage power distribution system.

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  • Data Communication

    Data centers gather a large number of servers、An IT equipment site for storage devices, network equipment, and supporting equipment such as UPS and precision air conditioners

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  • High-rise Buildings

    The voltage of power supply for medium and large buildings is generally 10kV,有时也可采用35kV。为了保证供电可靠性,应至少有两个独立电源。

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  • Medical Industry

    Hospital consumption system, not only needs to meet the requirements of civil building codes, building fire code requirements, but also needs to meet the requirements of hospital on消防供电可靠性、连续性要求。

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  • Industrial Industry

    Due to the special nature of the equipment load and the continuity of production in the industrial industry, the power supply must be reliable and uninterrupted.

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  • Wind Power Industry

    Due to a certain environment and load category in the wind power industry的特殊性,要求具有极高可靠性和供电连续性。

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  • Photovoltaic Industry

    For system security, grid operators often require The photovoltaic power generation system is connected to the low-voltage/medium-voltage distribution network through an isolation step-up transformer to achieve grid connection and operation

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  • EV Charging Solution

    The charging pile can be fixed to the ground or wall and can charge various models of electric vehicles according to different voltage levels.

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