Products catalog

  • Industrial protective DC circuit breaker for solar modules 2P | 100A | 1000VDC | 50kA

    Code: ES-TXBD2-100/PV

    A high-class molded case circuit breaker (MCCB) designed for use in direct current (DC) circuits where reliable protection against overloads and short circuits is required. This breaker is especially suitable for solar photovoltaic (PV) systems, wind power, hydropower, and other low-voltage DC energy distribution systems operating up to 1000V DC.

    With a high breaking capacity of up to 50 kA and reliable performance under harsh conditions, this breaker protects components of solar power plants or battery systems. 

  • Industrial protective DC circuit breaker for solar modules – 2P, 100A, 1000VDC, 50kA

    Industrial DC MCCB circuit breaker – a high-grade protective direct current circuit breaker designed for solar photovoltaic systems, energy storage solutions, wind turbines, hydropower and other low-voltage DC circuits. The device provides reliable protection against overload and short circuit in systems up to 1000VDC.

    Main idea:
    This 2-pole DC circuit breaker is designed for higher-power solar, battery and industrial direct current systems where safe disconnection, high breaking capacity and reliable protection against dangerous current surges are required.
    Poles
    2P
    Current
    100A
    Voltage
    1000VDC
    Breaking capacity
    up to 50kA

    Operating principle

    The DC circuit breaker monitors the direct current circuit and disconnects it when a dangerous overload or short circuit occurs. This is especially important in solar power plants and battery systems, where DC current disconnection requires a construction specifically designed for this purpose.

    Thanks to the short-circuit breaking capacity of up to 50kA and 35kA service breaking capacity, this circuit breaker can be used in systems where high safety, stable operation and reliable equipment protection against faults are required.

    Why must a DC circuit breaker be specially designed for direct current?
    In direct current circuits, extinguishing the electric arc is more difficult than in AC circuits, therefore switches specifically designed for DC networks must be used for solar modules, batteries and other DC systems. Using an unsuitable AC breaker in a DC circuit can be dangerous.

    Technical specifications

    Product type Industrial protective DC circuit breaker / MCCB
    Number of poles 2P
    Rated voltage DC 1000V
    Rated current 100A
    Ultimate short-circuit breaking capacity, Icu 50kA
    Service breaking capacity, Ics 35kA
    Protection functions Protection against overload and short circuit
    Operating temperature from -20°C to +60°C
    Certificates CE
    Standards IEC/EN 60947-2
    Mounting Suitable for installation in a distribution panel or according to the manufacturer’s specified mounting method
    Application area PV systems, battery systems, wind turbines, hydropower, industrial DC networks

    Main functions

    • Reliable disconnection in case of short circuit – helps protect the DC circuit from dangerous faults.
    • Overload protection – reduces the risk of overheating of cables, equipment and components.
    • Suitable for solar energy systems – can be used in PV circuits and DC distribution systems.
    • Can be used as the main DC disconnect switch – suitable for systems where the direct current circuit must be safely disconnected.
    • High breaking capacity – up to 50kA Icu, designed for systems requiring a higher safety level.
    • Stable operation under difficult conditions – operating temperature from -20°C to +60°C.

    Where is it used?

    • Solar photovoltaic systems – for PV module, inverter and DC distribution circuits.
    • Rooftop solar power plants – for higher-power private and commercial installations.
    • Energy storage systems – for battery, battery cabinet and DC storage circuits.
    • Wind turbine systems – for DC circuit protection and disconnection.
    • Hydropower DC lines – for low-voltage direct current distribution.
    • Electric vehicle charging stations – for DC protection and distribution circuits.
    • Train and railway electrical systems – for specialized DC distribution systems.
    • Industrial low-voltage DC networks – in production, energy and automation facilities.

    Use according to need

    For solar power plant owners: suitable as reliable DC circuit protection in a solar power plant, where it is necessary to protect the inverter, cables, modules and other system components from dangerous faults.

    For companies and industry: used in higher-power DC energy distribution systems, battery farms, EV charging infrastructure and renewable energy facilities.

    For designers / engineers: a suitable choice for systems requiring high 50kA breaking capacity, DC 1000V operating voltage and compliance with IEC/EN 60947-2 standard.

    For electricians: a clear and reliable DC protection component that can be integrated into distribution panels, PV systems or battery cabinets according to project requirements.

    Practical application

    In practice, this circuit breaker can be used between the solar module string and the inverter, in a battery cabinet, DC distribution box or another part of a direct current circuit where protection against short circuit and overload is required.

    High breaking capacity allows it to be used in more complex systems where short-circuit currents may be high and safe disconnection is critically important for equipment and personnel safety.

    Pros

    • Very high 50kA breaking capacity – for higher safety class systems.
    • Designed for DC 1000V circuits – suitable for solar, battery and other direct current systems.
    • Reliable protection against overload and short circuit – helps protect cables and equipment.
    • Wide operating temperature range – from -20°C to +60°C.
    • Certified solution – CE, IEC/EN 60947-2.
    • Universal application – in PV, battery, wind, hydropower and industrial DC systems.
    • Robust industrial solution – suitable for higher reliability requirements.

    Cons / limitations

    • Not suitable for AC networks – intended only for direct current DC systems.
    • May be excessive for small systems – 50kA breaking capacity is not always necessary for small household solar power plants.
    • Professional installation required – must be coordinated with the entire PV or DC system.
    • Polarity and wiring diagram must be followed – incorrect wiring in DC circuits can be dangerous.
    • Must be selected according to the project – current, voltage and short-circuit capacity must match the parameters of the specific system.

    Safety and installation notes

    The DC circuit breaker must be selected and installed according to the project of the solar power plant, battery system or other DC circuit. It is important to evaluate system voltage, current, possible short-circuit current and the wiring diagram provided by the manufacturer.

    • Use only in DC systems, not in AC networks.
    • Do not exceed the rated voltage of 1000VDC.
    • Do not exceed the rated current of 100A.
    • Follow the specified polarity and wiring diagram.
    • Installation must be performed by a qualified specialist.
    • Select according to short-circuit current and the design parameters of the specific system.
    • Using unsuitable AC breakers in DC circuits is dangerous.

    Quick selection guide

    Choose the industrial DC circuit breaker 2P 100A 1000VDC 50kA when high breaking capacity and reliable protection are required in solar, battery or other direct current systems.

    Poles
    2P
    Current
    100A
    Voltage
    1000VDC
    Icu
    50kA
    Suitable when you need to:
    • protect solar power plant DC circuits;
    • use the breaker in a battery or energy storage system;
    • have high 50kA breaking capacity;
    • protect the DC system against overload and short circuit;
    • use an industrial solution for systems up to 1000VDC.
    Check before installation:
    • whether the system is DC, not AC;
    • whether the system voltage does not exceed 1000VDC;
    • whether the load current matches the 100A breaker parameters;
    • whether 50kA breaking capacity is required;
    • whether the breaker is selected according to the specific PV or DC system diagram.
    Important reminder:
    This breaker is designed for direct current DC systems. It must not be used in alternating current AC networks unless the manufacturer specifies such use. Selection and installation must be carried out by a qualified specialist according to the project.

    FAQ – frequently asked questions

    What is this breaker used for?
    It is used to protect direct current DC circuits against overload and short circuit, especially in solar, battery and industrial systems.
    Can it be used in an AC network?
    No, this model is intended for DC systems. It must not be used in AC networks unless the manufacturer specifies such use.
    Is it suitable for solar power plants?
    Yes, the breaker is suitable for solar photovoltaic systems, inverter circuits, DC distribution boxes and energy storage systems.
    What is the breaking capacity?
    The ultimate short-circuit breaking capacity Icu is 50kA, and the service breaking capacity Ics is 35kA.
    Is professional installation required?
    Yes, in DC circuits polarity, wiring diagram and project requirements must be followed, therefore installation must be performed by a qualified specialist.
    Is it suitable for a small household solar power plant?
    It may be suitable if the system parameters match 100A, 1000VDC and breaking capacity requirements, but for small systems such a 50kA solution may be excessive.

    Industrial DC circuit breaker for solar, battery and renewable energy systems

    The industrial protective direct current circuit breaker 2P 100A 1000VDC 50kA is a reliable, certified solution for solar, wind, battery, hydropower and other DC energy distribution systems where a high level of safety is required.

    With high 50kA breaking capacity, 1000VDC operating voltage, 100A rated current, overload and short-circuit protection and compliance with IEC/EN 60947-2 standard, this breaker is suitable for both industrial and advanced private DC energy solutions.

    Illustrative image may have been created using AI. The appearance of the product may differ slightly from the image shown. Please refer to the technical specification.
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