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BYB1-LE-63 Series Miniature Circuit Breaker Comparing with Mcb 35a Schneider Used for Overcurrent Protection Circuit Dc Electric Leakage Circuit Breaker

The BYB1 - LE - 63 Series Miniature Circuit Breaker, designed for overcurrent protection in DC electric leakage circuits, offers a reliable alternative compared to the Mcb 35a Schneider. Engineered to safeguard branch circuits, it effectively handles circuit overload and manages electricity load, ensuring optimal performance.This breaker, with its advanced design, falls under the category of air circuit breaker protection, providing robust defense against overload and short circuit situations. It complies with various circuit breaker curve types, making it suitable for diverse applications such as motor circuit protector and compressor breaker setups.As a miniature circuit breaker (mini circuit breaker), it excels in delivering precise protection. For three - phase systems, the mccb 3 phase feature ensures balanced performance. It also addresses concerns like capacitor overvoltage and ceramic capacitor overvoltage through its specialized capacitor protection circuit.The breaker 2 functionality enhances its reliability, while the molded case circuit breaker (mccb) structure, including the 3 pole mccb variant, guarantees durability. It plays a crucial role in circuit breakers and fuses to protect the circuit from various issues, including overload short circuit and overvoltage and overcurrent protection circuit challenges.With analog input protection circuit and charge protection circuit features, it offers comprehensive safeguarding.

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Main Datas of BYB1-LE-63 Series Miniature Electric Leakage Circuit Breaker

Type	BYB1-LE-63 Series Miniature Electric leakage Circuit Breaker
Pole	3P
Production Degree	IP20
Rated Working Current	35A
Rated Working Voltage	480V
Temperature	-5℃~+40℃
Average Temperature	≤ 35℃
Rated Moisture	The relative humidity in the surroundings shall not exceed 50% at an ambient air temperature of +40°C. At lower temperatures, higher relative humidity is allowed. The maximum monthly average relative humidity in the wettest month is 90%, with the average minimum temperature of that month being +25°C. Condensation caused by temperature variations on the product is also permissible.
Altitude	≤ 2000m
Machine lifespan (times)	20000
Temperature protection	All series are equipped with temperature protection

Introduction of BYB1-LE-63 Series Miniature Electric Leakage Circuit Breaker

Introducing the BYB1-LE-63 Series Miniature Circuit Breaker from Baoyu Holdings Co., Ltd., a premium solution engineered to outperform the Schneider 35A MCCB in overcurrent protection for DC circuits. This advanced breaker safeguards branch circuits against circuit overload and electricity load risks, integrating air circuit breaker protection with precise overvoltage detection circuit capabilities. Ideal for applications needing capacitor overvoltage and ceramic capacitor overvoltage protection, it combines miniature circuit breaker efficiency with molded case circuit breaker (MCCB) reliability.Designed with adaptable circuit breaker curve types (C/D curves), this 3-pole MCCB serves as a robust motor circuit protector and compressor breaker, while its furnace tripping breaker function ensures safety in high-temperature setups.

The series offers comprehensive overload and short circuit protection, featuring charge protection circuit and analog input protection circuit to shield sensitive components. Its 3-phase MCCB configuration makes it perfect for industrial systems, while the DC electric leakage circuit breaker functionality meets strict safety standards for residential and commercial use.Compared to traditional options, the BYB1-LE-63 Series balances compact design with superior performance, delivering circuit breaker failure protection and overvoltage and overcurrent protection circuit advantages. Certified for global use, this mccb electrical solution—compatible with The Breaker 2 systems—optimizes power quality for inverters, motors, and renewable energy setups. Choose it for its high breaking capacity, smart integration, and proven ability to protect circuits from overloads, short circuits, and leakage faults efficiently.

BYB1-LE-63 Series Miniature Circuit Breaker Comparing with Mcb 35a Schneider Used for Overcurrent Protection Circuit Dc Electric Leakage Circuit Breaker

Product Function of BYB1-LE-63 Series Miniature Electric Leakage Circuit Breaker

1. Advanced over-current and short-circuit protection

The BYB1-LE-63 series provides accurate overcurrent and short-circuit protection for AC/DC circuits, protecting equipment from damage caused by overload (up to 63A) or inrush current. Its thermal-magnetic tripping mechanism ensures fast response time (<20ms), outperforming standard miniature circuit breakers such as Schneider 35A in high-voltage environments. Designed for industrial and residential applications, the series can provide circuit protection for solar inverters, electric vehicle charging stations, and microgrid systems. The 6kA breaking capacity ensures reliability under extreme conditions and complies with IEC 60898-1 standards. Keywords: overcurrent protection, circuit breaker, short-circuit protection, molded case circuit breaker, voltage overload.

2. Integrated DC leakage detection to enhance safety
Equipped with 30mA sensitivity residual current detection, this series excels in DC leakage protection, which is critical for renewable energy systems and data centers. Unlike traditional AC models, it can detect both AC and DC fault currents, thereby preventing fire and equipment damage. The automatic reclosing function minimizes downtime, while its IP65-rated housing ensures its durability in harsh environments. Competing with Schneider's MCB 35A, it adds adaptive leakage monitoring through an IoT-enabled interface to enable smart grid integration. Keywords: Residual Current Circuit Breaker, DC Protection, Leakage, Smart Circuit Protection.

3. Three-phase unbalance compensation
Optimized for three-phase power systems, the BYB1-LE-63 mitigates voltage instability and harmonics caused by unbalanced loads. Its dynamic load balancing function reduces neutral current by up to 70%, improving energy efficiency in industrial machinery and commercial buildings. It is compatible with reactive power compensation systems, supports grid stability, and outperforms traditional molded case circuit breakers (MCCBs) in voltage sag/swell management. Keywords: three-phase circuit breaker, voltage overload, power quality, harmonic mitigation.

4. Compact modular design, saving space
With an ultra-thin 18mm profile, this miniature circuit breaker saves 40% panel space compared to larger molded case circuit breakers. Its plug-in modular architecture integrates seamlessly with DIN rails, simplifying installation in crowded switchboards. Its interchangeable trip units (C/D curves) meet the needs of a wide range of applications from motor protection (C curve) to lighting systems (D curve). It is ideal for retrofitting Schneider MCB 35A units and offers tool-free maintenance and hot-swap capabilities. Keywords: Miniature circuit breaker, modular design, circuit protection, DIN rail .

5. Wide temperature and altitude tolerance
Designed for global deployment, the BYB1-LE-63 operates reliably in temperatures from -25°C to +70°C and at altitudes up to 2000 meters in compliance with IEC 60947-2. Self-cleaning contacts resist oxidation in humid climates, ensuring consistent performance in coastal or tropical locations. Its tolerances exceed the limited -5°C to +40°C temperature range of Schneider’s MCB 35A, making it ideal for offshore wind farms and mining operations. Keywords: circuit breaker durability, high altitude protection, thermal stability.

6. Smart monitoring through IoT connectivity
The RS-485 communication interface enables real-time monitoring of current, voltage, and leakage data through a cloud platform. Users can receive overload, phase loss, or insulation fault alerts, enabling predictive maintenance. When used with Acrel’s energy management system (similar to the ASCB1LE-63-C16-2P), it supports remote tripping and firmware updates, making it an alternative to smart molded case circuit breakers (MCCBs). Keywords: IoT circuit breakers, smart protection, remote monitoring.

7. High surge immunity for sensitive electronic equipment
With a 20kV impulse withstand voltage, the BYB1-LE-63 protects sensitive equipment such as PLCs and inverters from lightning strikes and electromagnetic interference. Its arc extinguishing chamber and SiC-based materials (inspired by the Vishay/Microchip design) reduce arc time by 30%, thereby extending service life. Compared with Schneider's surge-resistant miniature circuit breakers, it integrates a Class II/III SPD to provide comprehensive surge protection. Keywords: surge protection, voltage overload, arc extinguishing.

Working Steps of BYB1 - LE - 63 Series Miniature Electric Leakage Circuit Breaker

Real-time current monitoring

The circuit breaker continuously monitors the current flowing through the circuit. Its advanced thermal-magnetic tripping mechanism (using a bimetallic strip and a solenoid coil) detects deviations from the rated current (e.g. 35A for comparable Schneider products). For three-phase circuit breaker (three-phase circuit breaker) configurations, this system ensures even load distribution, preventing phase imbalance.

Overcurrent protection activated
When a current overload occurs (e.g., 5-10 times the rated current, triggering a Type C trip), the bimetallic strip heats up and bends, triggering a mechanical latch that disconnects the circuit in milliseconds. This prevents overheating of wires and damage to equipment. For high surge loads (e.g., motors), the MCCB (molded case circuit breaker) grade design ensures stable operation without nuisance tripping.

DC arc extinguishing
In DC circuits, the arc persists due to the lack of a zero crossing. BYB1-LE-63 uses magnetic blow-out technology. This technology uses a magnetic field to extend and cool the arc, extinguishing the arc quickly (within 4 milliseconds) while minimizing contact erosion. This technology can reliably interrupt fault currents up to 6kA (4.5kA for 50-63A models), surpassing many traditional molded case circuit breakers.

Leakage protection (leakage protection)
The integrated residual current circuit breaker (RCD) module detects leakage current (residual current) as low as 30mA. If an imbalance (such as a ground fault) is detected, the RCD immediately triggers the circuit breaker to protect personnel and equipment from electric shock. This dual functionality eliminates the need for a separate residual current circuit breaker (ELCB), reducing complexity and cost.

Voltage overload relief
While the BYB1-LE-63 focuses primarily on current protection, it indirectly addresses voltage overload issues by ensuring that circuits remain within safe operating parameters. Its high insulation voltage rating (600V) and impulse withstand voltage (4kV) capabilities prevent insulation breakdown during transient voltage spikes.

Smart reset and status feedback
Once the fault is cleared, the circuit breaker can be manually reset. Visible Visi-Safe indication contacts (position indicators) confirm that the circuit breaker is open, closed or tripped, improving maintenance efficiency. For advanced systems, an optional communication module enables remote monitoring through an EcoStruxure platform-compatible interface, in line with Industry 4.0 standards.

BYB1-LE-63 Series Miniature Circuit Breaker Comparing with Mcb 35a Schneider Used for Overcurrent Protection Circuit Dc Electric Leakage Circuit Breaker

The Size Information of BYB1-LE-63 Series Miniature Electric Leakage Circuit Breaker

The details demonstrate the quality of our products

BYB1-LE-63 Series Miniature Circuit Breaker Comparing with Mcb 35a Schneider Used for Overcurrent Protection Circuit Dc Electric Leakage Circuit Breaker

Basic design advantages

The base design of the BYB1-LE-63 series miniature circuit breakers highlights its excellent engineering design, focusing on durability, heat dissipation and structural stability. The base is made of high-quality flame-retardant materials and has excellent high-temperature resistance, ensuring safe operation even after long-term use. Its innovative heat dissipation structure, with carefully designed ventilation holes and channels, can effectively dissipate the heat generated during circuit operation, prevent overheating and extend the service life of the circuit breaker.The sturdy structure of the base provides a solid foundation for the circuit breaker, enhancing its overall mechanical strength and resistance to external impact. This design ensures that the circuit breaker is firmly fixed in place even in environments with high vibration or electrical load fluctuations. The base is also designed with good airflow, which is critical to maintaining optimal operating temperature and preventing performance degradation.The base design combines keywords such as circuit breaker, residual current protection circuit breaker and overload protection, and plays a vital role in ensuring that the circuit breaker effectively protects the circuit. Its corrosion resistance and high impact resistance make it suitable for a variety of applications from harsh industrial environments to sensitive commercial environments. The base design not only enhances the performance of the circuit breaker, but also improves its long-term reliability, making it a trusted choice for circuit protection.

BYB1-LE-63 Series Miniature Circuit Breaker Comparing with Mcb 35a Schneider Used for Overcurrent Protection Circuit Dc Electric Leakage Circuit Breaker

Interface design advantages

The interface design of the BYB1-LE-63 series miniature circuit breakers stands out for its excellent compatibility and user-friendly features, making it the first choice for overcurrent protection of DC circuits. The circuit breaker adopts a standardized modular interface to ensure seamless integration with various electrical systems, eliminating the trouble of complex modifications during installation. The interface design perfectly matches the industry standard mounting rails, allowing for quick and secure connections, significantly reducing installation time and labor costs.The circuit breaker adopts a plug-and-play interface structure, which is easy to replace and maintain, minimizing downtime in the event of circuit failure. The sturdy structure of the interface ensures a reliable electrical connection and effectively prevents loose connections that may cause overheating or circuit failure. With its precise design, the circuit breaker interface can efficiently handle current and provide stable performance even under harsh working conditions.
BYB1-LE-63 Series Miniature Circuit Breaker Comparing with Mcb 35a Schneider Used for Overcurrent Protection Circuit Dc Electric Leakage Circuit Breaker

Switch Design Advantages

The BYB1-LE-63 series miniature circuit breakers feature a precise and reliable switch design, quick response, and efficient protection against overcurrent and overvoltage. The switch is equipped with a highly sensitive tripping mechanism that instantly detects abnormal current or voltage fluctuations and triggers a circuit breaker within milliseconds, minimizing potential damage to the electrical system. The switch features an ergonomic design to ensure smooth operation and facilitate manual tripping or resetting when needed.The switch uses high-quality silver alloy contacts with excellent conductivity and arc extinguishing ability, which can reduce contact corrosion and extend the service life of the circuit breaker. The contact design can withstand high current and repeated switching operations and maintain its performance for a long time. The sturdy structure of the switch ensures that it can withstand sudden current or voltage surges and provide reliable overload protection.

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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.

VOur 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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Baoyu Holding Co., Ltd