BY Series Molded Case Residual Current Circuit Breaker

The BYM6 Series Moulded Case Circuit Breaker (MCCB) is a versatile Air Break Circuit Breaker engineered for solar photovoltaic (PV) systems, DC battery circuits, and circuit breaker in substation applications. Combining moulded case durability with cutting-edge technology, it delivers robust ground fault protection, DC overcurrent protection circuit, and output short circuit protection to safeguard against circuit overload, overvoltage detection circuit failures, and arc fault breaker tripping with no load. Designed for renewable energy grids, this MCCB 4 Pole integrates magnetic protection circuit breaker mechanisms and overvoltage protection of SCR to ensure reliability in high-stress environments. Compatible with Schneider Electric DC MCB standards, it supports DCC short circuit protection and over and under voltage protection circuit functions, making it ideal for industrial electricity load management, low oil circuit breaker replacements, and output protection circuit scenarios. Whether preventing overcurrent circuit hazards or enhancing air circuit breaker safety in solar farms, the BYM6 Series ensures seamless short circuit MCB performance, overvoltage and overcurrent protection circuit compliance, and long-term reliability for modern energy systems.

The BYCM1E-125 Series Molded Case Circuit Breaker (MCCB) by Baoyu Holding Co., Ltd. delivers advanced circuit protection for photovoltaic (PV) power systems and industrial applications. Designed to safeguard 380V AC 3-phase circuits, this molded case circuit breaker combines robust performance with precision engineering to ensure reliable air circuit breaker-level safety in demanding environments.Featuring molded case circuit breaker sizes optimized for compact installations, the BYCM1E-125 supports seamless integration into PV arrays, offering overcurrent, short-circuit, and arc fault protection. Its durable moulded case construction ensures resistance to heat, dust, and corrosion, while compatibility with ABB air circuit breaker standards guarantees interoperability in diverse setups.Ideal for MCB electrical breaker applications, this MCCB series also addresses specialized needs like MCB for DC circuits and MCB for lighting circuits, providing versatile solutions for both AC and DC systems. Whether you require MCB in electrical circuit designs or high-capacity moulded MCB performance, the BYCM1E-125 excels in optimizing circuit protection efficiency.

The BYM6 Series Moulded Case Circuit Breaker by Baoyu Holdings Ltd. delivers advanced circuit protection for solar photovoltaic (PV) systems and renewable energy applications. Designed for high voltage circuit breaker performance, this insulated case circuit breakerensures reliable protection against electrical current overloads, short circuits, and hazardous electrical arc faults. Engineered with solid state electronics for precision monitoring, it prevents blown fuse incidents and blown circuit breaker scenarios while optimizing electrical circuitsafety in demanding environments.Ideal for photovoltaic circuit breakers and high voltage breaker setups, the BYM6 features high speed circuit breaker technology to isolate faults instantly, complementing air circuit breakersystems like ABB air circuit breaker configurations. Its robust design supports new energy circuit breakers for solar arrays, offering compatibility with MCB-based protection networks. Trust the BYM6 to safeguard solid state electronics-driven infrastructure, reduce downtime, and enhance energy efficiency in commercial and industrial PV installations.

The BYCM1EL-250 is a cutting-edge MCCB Molded Case Circuit Breaker designed for advanced circuit protection and energy quality management. Ideal for industrial and commercial applications, this 3-phase MCCB integrates LSIG protection (Long-time, Short-time, Instantaneous, and Ground-fault trip functions), ensuring robust safety against overloads, short circuits, and leakage currents. Compatible with Siemens MCCB Configurator systems, it offers seamless integration into smart grids and energy management frameworks.Engineered for Low Voltage Breakers applications (up to AC400V), it combines high breaking capacity with precision electronic tripping, making it a superior alternative to traditional Low Oil Circuit Breaker solutions. As a Smart Breaker, it supports real-time monitoring and remote control, enhancing operational efficiency in harmonic mitigation, reactive power compensation, and three-phase imbalance correction systems.

Enhance circuit protection and electrical safety with the BYCM1E Series Electronic Molded Case Circuit Breaker, designed for robust performance in low-voltage applications. This MCCB 400A Schneider-benchmarked device ensures reliable overload, short-circuit, and under-voltage protection, safeguarding industrial and commercial power systems. Featuring MCCB LSIG functionality (Long-time, Short-time, Instantaneous, and Ground Fault protection), it delivers precision in fault detection and isolation, minimizing downtime and equipment damage.Available in MCCB 4 Pole configurations, this breaker supports flexible installation and compatibility with diverse electrical networks. Its compact, molded case design combines high breaking capacity (up to 800A) with thermal-magnetic tripping mechanisms, ensuring durability and compliance with international. Ideal for integration into low voltage breakers systems, it seamlessly aligns with circuit breaker wiring requirements for panels, OEM equipment, and power distribution units.Engineered for versatility, the BYCM1E Series supports lighting breaker applications and complements air circuit breaker setups, offering scalable solutions for energy management. With advanced communication interfaces (optional),  similar to Siemens MCCB Configurator-driven devices. Whether optimizing circuit breaker styles for industrial plants or commercial buildings, this MCCB ensures enhanced circuit safety and operational efficiency.

BYM3-125L/H 3P Molded Case Circuit Breaker (MCCB) – A premium three-phase power protection solution engineered by BaoYu Holdings, a leading MCCB circuit breaker manufacturer, designed to safeguard electrical systems against overloads, short circuits, and voltage fluctuations. This moulded circuit breaker combines ABB-grade reliability with a robust thermomagnetic trip mechanism, ensuring precise circuit protection for industrial, commercial, and renewable energy applications. With a 125A rated current, and compliance with IEC 60947-2 standards, it optimizes electric power protection in three-phase systems while offering versatile installation and durable performance. Ideal for MCCB in electrical infrastructure requiring harmonic mitigation, motor safety, or power protection circuits, it delivers unmatched resilience for modern energy demands. Explore alternatives to ABB MCCB circuit breakers with our cost-effective, high-performance solutions.

Complementing our power quality solutions, the BYCM1L Series Molded Case Circuit Breakers (MCCB) provide robust circuit protection for 50Hz AC distribution networks. Rated for 400V and up to 800A, these main power circuit breakers safeguard systems against overloads, short circuits, and ground faults. Ideal for electric power infrastructure, they prevent fatal electric shocks and fire risks caused by insulation failures, while supporting infrequent motor switching and circuit control.As leading MCCB circuit breaker manufacturers, Baoyu combines innovation with reliability. The BYCM1L model case circuit breaker series excels as a main circuit breaker for industrial power distribution, while compact miniature case circuit breaker variants cater to space-constrained installations. Together with the BY86DS capacitors, our solutions form a comprehensive ecosystem of circuit protection devices, ensuring safety, efficiency, and longevity for critical electrical systems.Trust Baoyu’s expertise in power breakers and smart energy management to optimize your grid performance. Contact us for tailored circuit circuit breaker and power quality solutions.

Enhance the safety and efficiency of your solar energy systems with the BYM6 Series Photovoltaic High-Voltage Molded Case Circuit Breaker, designed for AC 1140V applications. Engineered to meet rigorous industry standards, this breaker ensures reliable protection against overloads, short circuits, and ground faults in photovoltaic (PV) systems. Its compact, high-breaking-capacity design supports seamless integration into commercial and industrial solar installations, safeguarding inverters, transformers, and grid connections.