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BYM6 Series PV Breaker Electrical MCCB Circuit Breakers DC500V Good Quality Dc Pv Molded Circuit Breaker 2 Pole Dc Breaker Mccb for Solar System
Main Parameters of BYM6 New Energy Circuit Breaker
| Model | BYM6 New Energy Circuit Breaker |
| Production Level | IP20 |
| Extreme Number | 2P |
| Rated Current In (A) | 300A |
| Rated Ultimate Short-Circuit Breaking Capacity Lcu (kA) O-CO : AC 800V | 36.5kA |
| Rated Impulse Withstand Voltage Uimp (kV) | 12 |
| Rated Operationa Voltage Ue (V) | Up to 1140V |
| Total Breaking Time (without additional delay) (ms) | 12~28 |
| Closure Time (ms) | ≤60 |
| Working Voltage (V) | Up to 1140V |
| Machine Lifespan (times) | 20000 |
| Temperature Protection | All series are equipped with temperature protection |
Introduction of BYM6 New Energy Circuit Breaker
The BYM6 Series PV Breaker Electrical MCCB Circuit Breakers are revolutionary Power System Devices engineered for optimal performance in solar and new energy landscapes. Operating at a Low Voltage of DC500V for 2 Phase Voltage systems, these 2 - pole DC breakers are exemplary Low Voltage Circuit Breakers. Incorporating the finest features of MCCB and MCB technologies, they rival industry leaders like Mccb Abb, delivering robust protection. As a type of Thermal Circuit Breaker, the advanced thermal - magnetic trip mechanism ensures swift responses to voltage and current anomalies. Rigorous Breaker Testing guarantees their reliability, providing comprehensive Over Voltage Over Current Protection, Overcurrent And Short Circuit Protection, and safeguarding against Overload And Short Circuit situations. These Smart Circuit Breakers, or Smart Breakers, are Mcb Molded for enhanced durability, allowing for precise control of Mcb Current, making them indispensable Circuit Protection Devices for new energy systems.
Designed to meet the Need Of Power System Protection and the Need Of Protective Relaying In Power System, the BYM6 Series excels in various applications. Whether functioning as a Breaker Switch in a Circuit Breaker In Substation or as an Mcb For Lighting Circuit in smaller setups, these breakers ensure unwavering Circuit Safety. Their versatility extends to different Circuit Breaker Types, making them compatible with diverse electrical configurations. Similar to Dc Mcb Schneider products, they are ideal for Mcb For Dc Circuits, effectively managing electrical flows. With integrated features like Mosfet Overcurrent Protection Circuit, Mosfet Overvoltage Protection, and an Over Voltage Detector, they play a pivotal role in maintaining stable Electrical Power System Protection, offering a perfect Description Of Circuit Breaker that combines performance, reliability, and advanced protection for power generation and distribution.
Key Functions of BYM6 New Energy Circuit Breaker Product
Reliable circuit protection: Our BYM6 series photovoltaic circuit breaker is an advanced molded case circuit breaker (MCCB), which is an important guardian of the solar system circuit. It can detect and cut off abnormal current in time, effectively protect the entire solar system from potential damage caused by electrical faults, and ensure the stable operation of the new energy power generation system.
Current and voltage dual overload protection: This DC photovoltaic molded case circuit breaker uses an advanced mechanism that can accurately sense whether the current or voltage exceeds the rated value. When an overload occurs, it will act quickly to cut off the circuit. This not only protects the connected electrical components from overheating and burning due to overload, but also extends the service life of the entire solar system equipment and improves the overall reliability of the power supply.
Excellent MCB-level performance: BYM6 series draws on the advantages of miniature circuit breakers (MCBs) to provide high-speed tripping capabilities. It can quickly respond to short circuit and overcurrent events, minimizing the impact of faults on the circuit. The precise tripping mechanism ensures that it only operates when necessary, thereby reducing unnecessary power outages and improving the efficiency of solar energy systems.
Enhanced circuit safety: This two-pole DC circuit breaker for solar energy systems focuses on circuit safety, using solid insulation materials and a well-designed structure. It effectively prevents leakage and short circuits, protects operator safety, and reduces the risk of electrical accidents. In addition, it can withstand harsh environmental conditions, ensuring stable operation in a variety of outdoor solar applications.
Actively improve power quality: BYM6 series photovoltaic circuit breakers help improve the power quality of solar systems by maintaining a stable current and voltage supply. It is able to reduce voltage fluctuations and harmonics, providing cleaner and more stable power output. This is especially important for sensitive electrical equipment connected to the solar system to ensure its normal operation and performance.
Designed for solar energy systems: This DC photovoltaic molded case circuit breaker is designed to meet the unique needs of solar energy systems and is an ideal choice for new energy applications. It is compatible with solar panels and other components in the system to ensure seamless integration. It can handle the 500V DC voltage unique to solar power generation, thereby optimizing the performance of the entire solar power generation and distribution network.
Operation Principle of BYM6 New Energy Circuit Breaker Product
BYM6 Series Photovoltaic Circuit Breaker is an excellent electrical MCCB circuit breaker, its operation is based on several key principles to ensure reliable circuit protection and optimal performance of solar energy systems.
Overcurrent and overvoltage detection mechanism.The core components of the circuit breaker are equipped with highly sensitive sensors that continuously monitor the current and voltage levels in the solar system circuit. In new energy applications, solar panels generate direct current (DC), and the BYM6 circuit breaker is designed to handle the unique electrical characteristics of this DC. These sensors will immediately detect abnormal conditions when the current exceeds the rated value due to factors such as a short circuit in the solar panel array or a sudden increase in power demand, or when the voltage exceeds the safe limit due to grid voltage fluctuations affecting the output of the solar inverter. For example, if a faulty solar panel causes a partial short circuit, causing a sudden surge in current, the circuit breaker's sensors will detect this change within microseconds.
Tripping and circuit interruption
Once an overcurrent or overvoltage condition is detected, the circuit breaker's tripping mechanism is activated. The BYM6 circuit breaker operates similarly to a miniature circuit breaker (MCB), but is optimized for the high voltage and high current requirements of solar systems, using a combination of electromagnetic and thermal sensing elements. When an overcurrent occurs, an electromagnet inside the circuit breaker (part of the tripping mechanism) generates a magnetic field proportional to the current flowing through it. When the current reaches a level sufficient to overcome a preset magnetic threshold, the electromagnet activates a mechanical linkage. The linkage releases a latch that holds the circuit breaker contacts in the closed position. As a result, the contacts separate, interrupting the current and cutting off power to the faulty portion of the circuit. In terms of overvoltage protection, a voltage-sensitive element inside the circuit breaker (such as a Zener diode or a voltage-stabilizing circuit) triggers the tripping mechanism when the voltage exceeds a set limit. Rapid interruption of the circuit is essential to prevent damage to solar panels, inverters, and other connected electrical components, thereby improving circuit safety.
Arc extinguishing and safe disconnection
During the contact separation process, an arc can easily form due to the high-energy discharge between the disconnected contacts. In solar energy systems operating at 500V DC, the risk of arc-related problems is high. The BYM6 series photovoltaic circuit breakers solve this problem with an advanced arc extinguishing system. It uses specially designed materials and physical structures within the circuit breaker housing to quickly extinguish the arc. For example, the inside of the circuit breaker is lined with arc-resistant ceramic or fiberglass materials, and a magnetic arc extinguishing hood may be used. The magnetic arc extinguishing hood causes the arc to be diverted along a longer path, stretched and cooled until it is extinguished. This not only ensures the safe disconnection of the circuit, but also helps maintain the integrity of the circuit breaker itself, allowing it to operate repeatedly without performance degradation. By effectively suppressing the arc, the circuit breaker minimizes the risk of electrical fires and further damage to the solar system, which is critical to overall circuit safety and the long-term reliability of the power generation system.
Contribution to improving power quality
In addition to basic circuit protection functions, the BYM6 circuit breaker can effectively improve power quality. By maintaining a stable current and voltage supply, it helps reduce voltage fluctuations and harmonics in solar energy systems. When the circuit breaker trips under overload or fault conditions, it prevents abnormal current and voltage waveforms from propagating through the system. This is especially important for sensitive electrical devices connected to solar energy systems, such as smart meters, battery chargers, and advanced monitoring equipment. By ensuring cleaner and more stable power output, the circuit breaker enables these devices to operate properly, thereby improving the overall performance and efficiency of solar power generation and distribution networks.
Size Information of BYM6 New Energy Circuit Breaker Product
Product Applications of BYM6 New Energy Circuit Breaker
Distributed solar power generation for commercial buildings
Commercial buildings such as office buildings, shopping malls and hotels are also actively embracing distributed solar power generation. BYM6 series photovoltaic circuit breakers can provide excellent protection and performance in these scenarios.
In large commercial buildings, solar panels are often distributed on rooftops or exterior walls. BYM6 circuit breakers are installed at critical points in the distribution network to protect solar-related circuits. For example, in an office building, direct current generated by solar energy is used to power the building's lighting system, air conditioning units, and other electrical loads. Circuit breakers monitor current and voltage levels in these circuits. If an overvoltage condition occurs (which may be caused by a solar inverter failure or grid-related problems), the voltage-sensitive components in the BYM6 circuit breaker (such as Zener diodes or voltage-stabilizing circuits) will detect the abnormal condition. When the voltage exceeds the set limit, it triggers the trip mechanism, cutting off power to the affected part of the circuit. This protects the building's electrical equipment from overvoltage damage, thereby ensuring the comfort and safety of people in the building.Additionally, commercial buildings may require a high-reliability power supply to maintain business operations. BYM6 circuit breakers are essential to improving power quality. By reducing voltage fluctuations and harmonics in solar-powered systems, it ensures the normal operation of sensitive equipment such as servers, point-of-sale systems, and security systems. For example, in shopping malls, stable power is essential for the operation of cash registers, security cameras, and air conditioning systems. BYM6 circuit breakers help ensure clean and stable power supply from solar systems, thereby minimizing the risk of equipment failure and business interruption. In addition, if a solar-powered system fails, the circuit breaker's fast tripping mechanism can quickly isolate the problem, thereby simplifying maintenance and minimizing downtime, which is essential for the smooth operation of commercial activities in buildings.
Industrial facilities equipped with solar energy systems
Many industrial facilities are increasingly adopting solar power supply systems to reduce energy costs and carbon footprint. BYM6 series photovoltaic circuit breakers are ideal for such applications.In industrial environments, there are often a large number of sensitive electrical equipment and machinery that require a stable and reliable power supply. BYM6 circuit breakers can serve as reliable circuit protection devices for solar-powered systems. For example, in a manufacturing plant with a solar installation installed on the roof, the direct current generated by the solar panels is used to power part of the production equipment. If an overcurrent event occurs (such as a momentary surge in power demand from the solar system due to the sudden start-up of a high-power motor in the factory), the BYM6 circuit breaker will detect this situation and quickly cut off the circuit. This protects the solar panels from potential damage from overloads and overcurrents. At the same time, it also prevents abnormal current from reaching sensitive manufacturing equipment, which could otherwise cause failures, production interruptions, and expensive repairs.Furthermore, industrial environments can be very harsh, such as high temperatures, dust, and vibrations. The BYM6 circuit breaker is designed to withstand these conditions. Its rugged construction and high-quality materials ensure that it can operate effectively even in such harsh environments. In terms of arc suppression, there may be a higher risk of arcing in industrial environments due to the presence of flammable materials or a large number of electrical connections, so the advanced arc suppression system in the BYM6 circuit breaker is crucial. Its housing is made of arc-resistant materials such as ceramic or fiberglass and may be equipped with a magnetic arc extinguishing hood. When an arc is formed during the separation of the circuit breaker contacts, the magnetic arc extinguishing hood will divert the arc along a longer path, allowing it to extend and cool until it is extinguished. This not only ensures the safe disconnection of the circuit, but also minimizes the risk of electrical fires in industrial facilities, thereby protecting equipment and workers. In addition, the circuit breaker's ability to maintain stable performance in high-temperature environments helps ensure the continuous operation of solar energy systems, thereby improving the overall productivity of industrial facilities.
Solar power plants
Solar power plants are the main application scenario for BYM6 series photovoltaic circuit breakers. In these large-scale renewable energy installations, numerous solar panels are interconnected to generate large amounts of direct current. BYM6 circuit breakers play a key role in ensuring the integrity of power generation and distribution systems.First, in terms of circuit protection, the circuit breaker continuously monitors the current and voltage levels in the solar panel array. In a solar power plant, a single solar panel may fail due to overheating caused by factors such as shading or manufacturing defects, resulting in a short circuit. When this happens, the highly sensitive sensors in the BYM6 circuit breaker can detect the sudden increase in current within microseconds. For example, if the normal operating current of the solar panel string is 10A, and a short circuit causes its current to surge to 50A, the circuit breaker's sensors will immediately register this abnormality. Once detected, the circuit breaker's tripping mechanism (similar to a miniature circuit breaker optimized for high-voltage DC applications) is immediately activated. The electromagnetic element in the circuit breaker generates a magnetic field proportional to the current. When the magnetic force exceeds a preset threshold, it activates a mechanical linkage, separating the contacts and cutting off the current flowing to the faulty part of the circuit. This fast reaction effectively stops the spread of the fault, protecting other healthy solar panels and inverters from damage by the abnormal current, thereby improving the safety of the overall circuit.Secondly, the BYM6 circuit breaker contributes greatly to the improvement of power quality. Solar power generation is intermittent and easily affected by weather conditions such as cloud cover and changes in sunlight intensity. These fluctuations can cause voltage fluctuations and power output harmonics. The BYM6 circuit breaker helps alleviate these problems. By maintaining a stable current and voltage supply, it can reduce the impact of these fluctuations on grid-connected inverters and other electrical equipment. For example, it prevents voltage surges from reaching the inverter, which is essential for converting the direct current from the solar panels into alternating current for grid connection. This stable power output not only ensures the normal operation of the equipment inside the solar power plant, but also helps to improve the quality of the grid-connected power and meet the strict power quality standards of the grid operators.
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Baoyu Holding Co., Ltd
Baoyu Holding Co., Ltd. was founded in 2015 and is located in Wenzhou City, Zhejiang Province. The location is excellent and the transportation is convenient. We have very rich industry experience and is a trusted supplier. The company has advanced production equipment and skilled front-line employees. Our company is mainly engaged in the production and sales of power quality products，such as active power filters, static var generators, intelligent capacitors, power capacitors, reactive power compensators, composite switches, capacitor contactors, thyristor switches, reactors. Our company knows that the development of the company depends on the innovation and quality of the products. Therefore, our products have strict quality control from the procurement of raw materials to the sale of finished products. The company has established a quality management system that meets the requirements of the international quality management system. The company continuously releases the original innovations according to the market and customer needs, and always maintains the novelty and innovation of the products. The company wants the customer's thoughts and urgency. Solving problems for customers and meeting customer needs is our eternal pursuit! Our company's products are sold worldwide. The company has won the unanimous recognition of consumers with satisfactory product quality and perfect after-sales service. We have a professional R & D team. We can accept O E M and O D M.We sincerely welcome friends from all over the world to visit our company and cooperate with us on the basis of long-term mutual benefits. We are looking forward to receiving your enquiry soon.
Our storage facility utilizes precision climate control, automated 3D warehousing (which increases capacity by 200%), and integrated safety systems (including fire suppression, anti-static protocols, and monthly audits) to maintain zero oxidation and ensure product integrity. In addition, our cleanroom manufacturing facility features a combination of natural and LED lighting, optimized workflows, and cross-trained technicians to enhance efficiency. Automated quality control systems and ISO-certified processes ensure compliance with dimensional and electrical standards, while AI-driven analytics and stringent protocols help achieve near-zero defects. By integrating advanced automation, tailored solutions, and steadfast reliability, Baoyu provides durable, mission-critical power systems, reinforcing our status as the preferred global partner for industries that require precision and innovation.
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