BYM6 Series New Energy Circuit Breaker Dc Pv Molded Circuit Breaker 3 Pole Solar Breaker MCCB Thermal Magnetic Trip for Solar PV System and Other DC System 650V

Main Parameters of BYM6 New Energy Circuit Breaker

Overview of BYM6 New Energy Circuit Breaker

The BYM6 Series New Energy Circuit Breaker is a game - changing Power System Device, designed for 3 Phase Voltage and Low Voltage DC systems at 650V. As a 3 - pole MCCB with Thermal Magnetic Trip, it's a top - tier Low Voltage Circuit Breaker. Engineered with precision, it rivals Mccb Abb in reliability and combines Mcb Electrical technology with an Mcb Molded structure. Rigorous Breaker Testing certifies its ability to offer robust Circuit Protection. It excels at detecting and preventing Overload And Short Circuit, Overcurrent And Short Circuit Protection, and Over Voltage Over Current Protection, ensuring the safety of your electrical setup.This Smart Circuit Breaker integrates advanced features like Mosfet Overcurrent Protection Circuit and Mosfet Overvoltage Protection, complemented by an efficient Over Voltage Detector. These elements work in harmony to safeguard your system against electrical anomalies. Whether functioning as a Breaker Switch in a Circuit Breaker In Substation or used for Mcb For Dc Circuits and Mcb For Lighting Circuit, it precisely controls Mcb Current. Among various Circuit Breaker Types, its design allows for accurate tripping during faults, minimizing downtime and enhancing Electrical Power System Protection.

The BYM6 Series meets the crucial Need Of Power System Protection and the Need Of Protective Relaying In Power System. Similar to Dc Mcb Schneider products, it serves as an essential Circuit Protection Device, offering reliable Power Generator Protection. Ideal for new energy applications, it ensures stable power flow, reduces voltage fluctuations, and improves overall power quality. From protecting sensitive equipment to maintaining the integrity of large - scale solar PV systems, this breaker is a trusted choice for any electrical setup requiring top - notch performance and safety.

Key Features of BYM6 New Energy Circuit Breaker Product 

Excellent overload protection: BYM6 series new energy circuit breakers are a model of voltage and current overload protection. Its advanced sensors are always vigilant and can detect abnormal surges in any electrical parameters in time. In the event of an overload, its thermal magnetic tripping mechanism (similar to the reliable operation of a miniature circuit breaker) will be activated immediately. It can quickly cut off the circuit and protect the connected equipment from damage. This is especially important in solar photovoltaic and other DC systems to ensure overall circuit safety and prevent potential equipment failures caused by overload.

Rugged circuit safety blueprint: This three-pole solar circuit breaker puts circuit safety first, with a rugged structure and high-grade insulation. It can effectively prevent leakage and short circuits, protecting the safety of electrical equipment and operators. It is carefully built with high-quality materials and attention to detail, and can withstand harsh environments, significantly reducing the risk of electrical accidents. It can maintain reliable performance regardless of extreme temperature or high humidity conditions.

Power quality optimization: BYM6 series greatly improves power quality by maintaining stable current and voltage levels. It can effectively suppress voltage fluctuations and harmonics, providing clean and stable power. This is essential for sensitive electrical equipment in new energy systems. For example, in solar power plants, it can ensure that inverters and other components receive stable power input, allowing them to operate at peak efficiency and extend their service life.

Fast tripping capability: This DC photovoltaic molded case circuit breaker is equipped with a lightning-fast tripping mechanism that can isolate faults in an instant. In the event of a short circuit or sudden overcurrent, it can trip within milliseconds. This high-speed operation minimizes the impact on circuits and other components, ensuring the stability and reliability of the entire electrical system. In large-scale solar power generation systems, its fast response can prevent small faults from escalating into major systemic problems.

 Wide compatibility: The BYM6 series is highly adaptable and compatible with a variety of solar photovoltaic systems and other DC applications. Whether it is a large-scale solar power plant or a distributed solar power generation system in a commercial building, it can be seamlessly integrated into different electrical configurations. Its versatility makes it ideal for a variety of new energy projects, eliminating compatibility issues and simplifying the installation process.

Durable and long-lasting guarantee: This molded case circuit breaker (MCCB) thermal magnetic trip circuit breaker is durable and provides unparalleled long-term reliability. It can withstand frequent operation and the harshest environmental conditions. This not only reduces maintenance costs, but also reduces downtime, ensuring continuous protection and stable performance throughout the service life in the new energy system. Whether it is a solar power plant in a desert area or a solar installation in a coastal area, it is a reliable guarantee.

Operation Steps of BYM6 New Energy Circuit Breaker Product 

1. Continuous parameter monitoring
The journey of the BYM6 series new energy circuit breaker begins with continuous and close monitoring. It is equipped with advanced sensors that continuously monitor the electrical parameters of solar photovoltaic systems or other 650V DC systems. These sensors are highly sensitive to both current and voltage. In the field of new energy, solar panels generate DC power, and any current fluctuations caused by changes in light intensity or shading, as well as voltage changes caused by inverter or grid connection problems, can be detected in time. For example, if clouds block the solar panel array, causing the light to weaken and causing the power generation current to drop, the circuit breaker's sensors will record this change. Similarly, if the grid voltage suddenly increases and affects the DC side of the system, the sensor can also detect it quickly. This continuous monitoring is the first line of defense to ensure circuit safety and maintain optimal power quality.
2. Overload and fault detection
Once the monitoring sensors detect abnormal electrical parameters, the next critical step is overload and fault detection. For current overload, if the current flowing through the circuit exceeds the rated value (perhaps due to a short circuit in a solar panel or an unexpected increase in the power demand of the connected equipment), the internal mechanism of the circuit breaker will be activated. The thermal-magnetic trip mechanism plays a key role here, and its reliable operation principle is similar to that of a miniature circuit breaker (MCB), but optimized for DC applications. The thermal element reacts to the increased current because the heat generated by the overcurrent causes the thermal element to expand. At the same time, the magnetic element reacts to the magnetic field generated by the overcurrent. If the combined effect of thermal and magnetic forces exceeds the preset threshold, an overcurrent fault is indicated. For voltage overload, if the voltage exceeds the safe limit, the voltage-sensitive element in the circuit breaker (such as a Zener diode or a voltage regulation circuit) detects this abnormal voltage. Once a voltage-related fault is detected, the circuit breaker is ready for the next step of protection.
3. Tripping and circuit interruption
The tripping mechanism of the BYM6 circuit breaker acts incredibly quickly when it detects an overload or fault. In the event of a short circuit or sudden overcurrent, the tripping process can be completed in milliseconds. A mechanical linkage inside the circuit breaker is activated by electromagnetic and thermal forces in an overcurrent event, or by a voltage-sensitive element in an overvoltage event, releasing the latch that holds the contacts in the closed position. As a result, the contacts of the circuit breaker separate rapidly. This separation effectively cuts off the current in the circuit, thereby cutting off power to the faulty section. In solar photovoltaic systems, this rapid circuit interruption prevents further damage to solar panels, inverters, and other connected electrical components. By isolating the fault, it also helps maintain the stability of the entire electrical system, ensuring that other healthy parts of the system can continue to operate without being affected by the fault, which is critical to circuit safety and the uninterrupted operation of new energy systems.
4. Arc extinguishing and safe disconnection
During the circuit breaker tripping and contact separation process, an arc is likely to form due to the high-energy discharge between the disconnected contacts, especially in high-voltage DC systems like 650V solar photovoltaic installations. BYM6 circuit breakers are equipped with an advanced arc suppression system. It uses a combination of physical and electrical methods to suppress arcs. Physically, the inside of the circuit breaker housing may be lined with arc-resistant materials such as ceramic or fiberglass. These materials can withstand the high temperature and corrosive effects of the arc. Electrically, a magnetic arc extinguishing hood can be used. When an arc forms, the magnetic arc extinguishing hood generates a magnetic field that deflects the arc along a longer path. During the deflection process, the arc is stretched and cooled, thereby losing energy and eventually extinguishing. This effective arc extinguishing measure not only ensures safe circuit disconnection, but also protects the circuit breaker itself from arc damage, thereby achieving repeated operation and long-term reliable performance in new energy applications.
5. System stability and power quality restoration
After a circuit breaker trips and isolates a fault, it helps stabilize the system and restore power quality. By cutting off the faulty portion of the circuit, the circuit breaker prevents abnormal current and voltage waveforms from propagating further in the system. In solar photovoltaic systems, this helps reduce voltage fluctuations and harmonics in the remaining healthy parts of the system. For example, if a fault in a component in a solar panel array causes voltage spikes and harmonic distortion throughout the system, the action of the circuit breaker to isolate the fault can restore a more stable, purer power supply. This stable power output is critical for sensitive electrical devices connected to the system, such as smart meters, battery chargers, and advanced monitoring equipment. By ensuring the normal operation of these devices, circuit breakers can improve the overall performance and efficiency of solar power generation and distribution networks, playing an important role in improving power quality and maintaining the integrity of new energy systems.
6. Monitoring and preparation for re-engagement
Even after tripping and isolating the fault, the BYM6 circuit breaker continues to monitor the electrical parameters of the circuit. Once the fault is corrected, either through manual intervention (such as replacing a faulty solar panel or repairing an electrical connection) or through an automatic self-healing mechanism in some advanced systems, the circuit breaker can be reclosed. The sensors resume normal monitoring, and if the electrical parameters return to normal levels, the circuit breaker can be reset to the closed position. This allows the circuit to resume normal operation, ensuring continued reliable operation of the solar PV system or other DC system. The ability to continuously monitor and be ready to reclose at any time is an important aspect of circuit breaker functionality, as it enables rapid recovery from faults and minimizes downtime in renewable energy applications, thereby helping to improve the overall reliability and efficiency of the power generation and distribution process.

Size Information of BYM6 New Energy Circuit Breaker Product