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JCB3-80H Miniature Circuit Breaker 10kA


JCB3-80H Miniature Circuit Breaker 10kA

Introducing the JCB3-80H miniature circuit breaker, designed to meet the needs of domestic, commercial and industrial installations with a focus on safety. These circuit breakers offer unique design features to ensure the safety of your electrical system. It has short circuit and overload protection functions and reliable performance, giving you peace of mind. Breaking capacity of up to 10kA ensures that high levels of electrical stress can be handled, while a contact indicator provides visual confirmation of circuit breaker status.

Available in amperage ranges from 1A to 80A and available in 1-, 2-, 3- or 4-pole configurations, these circuit breakers offer the versatility to meet a variety of installation requirements. Additionally, B, C or D curve options allow customization to specific application needs. In addition, JCB3-80H miniature circuit breakers comply with international standard IEC 60898-1, ensuring compliance with quality and safety regulations.

With a focus on safety, reliability and compliance, the JCB3-80H miniature circuit breaker is ideal for ensuring the protection of electrical systems in a variety of settings.


    The JCB3-80H miniature circuit breaker is a versatile, high-performance energy-limited circuit breaker suitable for a variety of applications, including industrial, commercial and residential uses. These circuit breakers provide excellent selectivity conditions in the event of a short circuit, ensuring that the upstream overcurrent circuit breaker is protected while limiting the load on downstream equipment to a minimum.
    JCB3-80H MCB complies with the standard EN 60898-1 for electrical installation materials for household and similar installations, providing a fast and flexible installation experience and solving safety issues during maintenance and operation. Designed to adapt to challenging networks and environments, these breakers remain cost-effective over time, providing automatic fault detection to prevent wire damage and fire risk.
    Featuring unique bottom fixed auxiliary contacts for space-saving and efficient installation, the JCB3-80H MCB is designed for reliability and superior circuit protection. With high breaking capacity ratings and a variety of trip characteristics (including Types B, C and D), these circuit breakers offer a wide range of applications, from household distribution systems to protecting high pulse current equipment.
    JCB3-80H MCB is ideal for overload and short-circuit protection of lighting, distribution lines and equipment in office buildings, residential buildings, etc. Additionally, it can be used for infrequent switching operations and line transfers, making it a versatile and reliable choice for a variety of electrical protection needs.

    Product Description


    The most important features

    ● High rated Breaking capacity up to 10kA: Ensures the ability to handle high levels of electrical stress, providing reliable protection for your electrical systems.

    ● Short-circuit protection: Safeguards against short-circuit currents, preventing damage to the circuits and equipment.

    ● Overload protection: Protects circuits against overload currents, ensuring the safe and efficient operation of electrical systems.

    ● With contact indicator, green=off, Red=ON: Provides a visual indication of the status of the circuit breaker, enhancing safety and ease of monitoring.

    ● High nominal current range of up to 80A: Offers a wide range of current ratings to accommodate various electrical loads and applications.

    ● Optimum ease of installation and connection: Designed for easy and efficient installation, saving time and effort during setup.

    ● 1 Pole, 2 Pole, 3 Pole, 4 Pole are available: Provides flexibility to meet different installation requirements and configurations.

    ● B, C, or D curve are available: Offers various tripping characteristics to suit specific application needs, ensuring precise protection.

    ● 35mm Din rail mounted: Compatible with standard 35mm DIN rail mounting, allowing for convenient and secure installation in electrical panels or enclosures.

    ● Comply with IEC 60898-1: Meets the international standard for electrical installation material, ensuring adherence to quality and safety regulations.



    ● Protection of circuits against short-circuit currents: Ensures the safety and integrity of electrical circuits by preventing damage from short-circuit events.

    ● Protection of circuits against overload currents: Safeguards against excessive current flow, maintaining the reliability and longevity of electrical systems.

    ● Switch: Provides the ability to manually open or close the circuit, offering control over the electrical supply.

    ● Isolation: Enables the complete disconnection of the circuit for maintenance or safety purposes, ensuring a safe working environment.



    1) Public buildings

    Schools, hospitals, office buildings and other high-traffic public facilities require reliable power supplies to ensure the safety of their occupants and the protection of their property.  The JCB3-80H high performance MCB plays a vital role in preventing personal injury and property damage in the event of a short circuit, giving you peace of mind in these busy environments.

    2) Airports

    As a bustling travel and transportation hub, airports serve millions of travelers every day. The use of JCB3-80H high-performance MCBs is critical to reducing the risk of personal injury and property damage due to short circuits, thereby ensuring uninterrupted operation of critical electrical systems within airport facilities.

    3) Alternative energies

    The increasing reliance on renewable energy sources such as solar energy requires the deployment of reliable power protection solutions.  JCB3-80H high-performance miniature circuit breakers contribute to the safe and efficient operation of renewable energy power stations and support the global transition to sustainable energy production.

    4) Power stations

    Power stations are the backbone of global energy production, providing essential electricity to industries and communities.  With its high capacity and reliability, JCB3-80H high-performance miniature circuit breakers provide vital protection for infrastructure, employees and machinery involved in power generation, ensuring uninterrupted power supply and operational safety.

    5) The petrochemical industry

    The chemical and petrochemical industries play a vital role in supplying the necessities of modern life.  JCB3-80H high performance miniature circuit breakers help protect production facilities, including offshore oil platforms and onshore production sites, ensuring the continued safe operation of critical electrical systems in these harsh environments.

    6) The steel industry

    From large infrastructure projects to everyday consumer products, steel is a fundamental material in modern industry.  JCB3-80H high-performance miniature circuit breakers help protect electrical systems in the steel industry and support the safe and reliable operation of equipment during steel production, construction and manufacturing processes.


    Technical Data

    ● Standard: IEC 60898-1, EN 60898-1

    ● Rated current: 1A, 2A, 3A, 4A, 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A,80A

    ● Rated working voltage: 110V, 230V ~ (1P, 1P + N), 400V ~ (2 ~ 4P, 3P + N)

    ● Rated breaking capacity: 10kA

    ● Insulation voltage: 500V

    ● Rated impulse withstand voltage(1.2/50) : 4kV

    ● Thermo- magnetic release characteristic: B curve, C curve, D curve

    ● Mechanical life: 20,000 times

    ● Electrical life: 4000 times

    ● Protection degree: IP20

    ● Ambient temperature (with daily average ≤35℃):-5℃~+40℃

    ● Contact position indicator: Green=OFF, Red=ON

    ● Terminal connection type:Cable/U-type busbar/Pin-type busbar

    ● Mounting: On DIN rail EN 60715 ( 35mm) by means of fast clip device

    ● Recommended torque: 2.5N.m

    ● Combination with accessories: Auxiliary contact,Shunt release,Under voltage release, Alarm contact

    Standard IEC/EN 60898-1  IEC/EN 60947-2

    Electrical features

    Rated current In (A)

    1, 2, 3, 4, 6, 10, 16,20, 25, 32, 40, 50, 63,80

    Poles 1P, 1P+N, 2P, 3P, 3P+N, 4P 1P, 2P, 3P, 4P
    Rated voltage Ue(V) 230/400~240/415
    Insulation voltage Ui (V) 500
    Rated frequency 50/60Hz
    Rated breaking capacity 10 kA
    Energy limiting class 3  
    Rated impulse withstand voltage(1.2/50) Uimp (V) 4000
    Dielectric test voltage at ind. Freq. for 1 min (kV) 2
    Pollution degree 2
    Power loss per pole Rated current (A)
    1, 2, 3, 4, 5, 6, 10,13, 16, 20, 25, 32,40, 50, 63, 80
    Thermo-magnetic release characteristic B, C, D 8-12In, 9.6-14.4In

    Mechanical features

    Electrical life 4, 000
    Mechanical life 20, 000
    Contact position indicator Yes
    Protection degree IP20
    Reference temperature for setting of thermal element(℃) 30
    Ambient temperature (with daily average ≤35℃) -5...+40
    Storage temperation (℃) -35...+70
    Installation Terminal connection type Cable/U-type busbar/Pin-type busbar
    Terminal size top/bottom for cable 25mm2  / 18-4 AWG
    Terminal size top/bottom for Busbar 10mm2  / 18-8 AWG
    Tightening torque 2.5 N*m  /  22 In-Ibs.
    Mounting On DIN rail EN 60715 (35mm) by means of fast clip device
    Connection From top and bottom


    Auxiliary contact Yes
    Shunt release Yes
    Under voltage release Yes
    Alarm contact Yes

    MCCB Production Line Real Showing

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