-
Power Capacitors
- BY71 Series Cylindrical Capacitor
- BSMJ Series Self-healing Low Voltage Shunt Capacitors
- BY86 Series Controlled Intelligent Capacitor
- BYKXG/F Series Anti-harmonic Intelligent Capacitor
- BY81 Series Intelligent Capacitor
- BY82J Series Anti-harmonic Intelligent Capacitor
- BY89 Series Intelligent Capacitor
- Intelligent Controller Series
- Reactor
- Intelligent Switch Series
- Alternating Current Contactor
- Multifunctional power instruments
- Circuit Breaker
- APF/SVG/SPC Cabinet & Module Series
BYCW1 Series Intelligent Universal Circuit Breaker 450V Fixed Drawer Type Universal Distribution Air Circuit Breakers 3 Pole ACB Circuit Breakers CW1
Parameters of Intelligent Universal Circuit Breaker
| Model | BYCW1 Universal Circuit Breaker |
| Place of Origin | Zhejiang, China |
| Brand Name | CNBYG |
| Altitude | Not Exceed 2000m |
| Working Current | 630A~6300A |
| Phase | 3 |
| Rated Frequency (Hz) | 50Hz |
| Mechanical Life | 12500Times |
| Electric Life | 2500Times |
| Installation Method | Drawer style |
| Rated Working Voltage | 380V |
| Quality | Insulating Material and Metal Parts |
Overview of Intelligent Universal Circuit Breaker
Wroking Principle 0f Intelligent Universal Circuit Breaker
Overload protection:
The circuit breaker is equipped with a thermal magnetic tripping system that monitors the current in real time. If the current exceeds the rated value (e.g. 1.5 times In), the bimetallic strip will bend due to heat, triggering the mechanical tripping and disconnecting the circuit within seconds. This circuit protection function prevents the equipment from being damaged due to long-term overheating.
Short circuit protection:
Special electromagnetic coils detect sudden current surges (e.g. 10-100 times In). In the event of a short circuit, the coil generates a strong magnetic field that instantly releases the trip mechanism, disconnecting the fault within milliseconds. The high breaking capacity of the circuit breaker (up to 85kA at 400V) ensures safe disconnection even under severe fault conditions.
Voltage overload and undervoltage protection:
The integrated intelligent controller continuously monitors the line voltage. When the voltage exceeds the set threshold (such as 110% of the rated voltage) or falls below 70%, the circuit breaker trips to prevent equipment damage caused by unstable power supply.
Intelligent monitoring and remote control:
Unlike traditional MCBs (molded case circuit breakers) or standard ACBs, the BYCW1 series is equipped with an embedded microprocessor and RS485/Modbus communication interface, which can monitor voltage, current, power, and temperature in real time through a connected application or SCADA system. Users can remotely adjust protection settings, perform diagnostic tests, and receive instant alerts of abnormal conditions, thereby improving operational efficiency and reducing downtime.
Arc extinguishing technology:
A modular arc chute system with multiple metal plates separates and cools the arc, ensuring rapid extinguishing and minimizing arc damage to internal components.
Key Features of Intelligent Universal Circuit Breaker
1. Advanced intelligent protection system
The BYCW1 series universal circuit breaker integrates AI-driven tripping technology with multi-level protection algorithms (long-delay overload, short-delay/instantaneous short circuit, and ground fault detection). It dynamically adjusts trip thresholds based on real-time current analysis to prevent equipment damage due to voltage surges or circuit overloads. Its digital display shows real-time status alerts for parameters such as current imbalance or harmonic distortion, making it an ideal replacement for traditional miniature circuit breakers. It is compatible with power quality solutions such as harmonic filters and reactive power compensators, providing comprehensive circuit protection for three-phase systems. The controller supports customized settings for a variety of industrial loads, from motors to sensitive data centers.
2. High breaking capacity and strong structure
Designed for extreme conditions, this air circuit breaker (ACB) provides up to 120kA breaking capacity at 450V AC, effectively isolating faults during severe short circuits or voltage overloads. Its rugged drawer design features "connect", "test" and "disconnect" positions for safe maintenance without power outages. Zero arc trough technology eliminates flashover hazards, while corrosion-resistant materials such as POM insulation ensure reliability in harsh environments (-40°C to 60°C). Certified for marine, nuclear (Class 1E) and tropical applications, it outperforms standard miniature circuit breakers in both durability and fault control.
3. IoT power monitoring and control
This three-pole universal distribution circuit breaker (ACB) features an embedded communication module supporting Modbus, Profibus, CAN and TCP/IP protocols for seamless grid integration. It monitors parameters such as phase imbalance, energy consumption or temperature via a cloud platform and triggers automatic responses such as load shedding when a circuit is overloaded. An optional FDM3 SMS module enables remote fault alarms, while the FWB1 thermal sensor detects overheating of connections. This real-time data, in synergy with your facility’s SCADA or smart MCB network, enables predictive maintenance that can reduce downtime by 40%.
4. Multifunctional applications across industries
From manufacturing plants to renewable energy farms, this 1600A/2000A circuit breaker protects critical infrastructure. It resolves three-phase imbalance in the distribution network, protects capacitor banks during reactive power compensation, and prevents voltage sags that can cause motor burnout. Its 690V rating covers applications where voltage surges are frequent, such as HVAC systems, electric vehicle charging stations, and solar inverters. Unlike basic miniature circuit breakers, it integrates motor protection (for ≤1000A loads), transformer backup, and bus coordination functions in one device, saving 30% of switchboard space.
5. Enhanced security and compliance features
Prioritizing personnel safety, the circuit breaker features isolation (compliant with IEC 60947-2) and IP40 dust protection. Its “safety lock” mechanism prevents accidental contact with live parts during drawer removal. It is tested for electromagnetic compatibility (EMC) to resist interference in high-noise environments such as factories. Certifications include CE, CB Scheme and China CCC, ensuring compliance with global standards for arc flash prevention and electrical fire mitigation.
6. Eco-efficiency and cost optimization
Adaptive power management reduces energy waste by up to 15%! BYCW1 minimizes distribution losses with precise reactive current control and harmonic mitigation (THiD < 3%). Its modular design allows for quick component replacement, while 50,000 mechanical cycles extend service life. Paired with BY’s Power Quality System, it enables full circuit optimization—reducing operating costs by balancing loads, correcting power factor, and avoiding utility penalties for harmonic issues.
Wiring Method of Intelligent Universal Circuit Breaker
1. The controller's signal output drives the external relay u through terminals 12-18, 20, and 21 to provide output contact action signals.
2.RS485/232 converter, DP module and current transformer (input voltage value must be specified) are provided by the manufacturer. The power transformer can be inserted into the standard rail together with the relay base, and the user is responsible for installing it in the appropriate position in the switch cabinet.
3. The relay model is HH62P, AC/DC 24V, and is prepared by the user.
4.The main station computer is provided by the user.
5.Terminals 13-15 output communication remote tripping, closing, and energy storage signals. At this time, terminals 14 and 15 no longer output tripping signals. The normally open contacts of the corresponding relays are connected in parallel with the active control buttons to achieve remote control. If remote control is not required, terminals 14 and 15 can be connected in series with the normally open contacts of relays J14 and J15 to form two remote signal outputs. Please indicate whether the remote control function is required when ordering. The manufacturer will determine the corresponding functions of terminals 14 and 15 accordingly. Terminal 21 output can drive relay J21 to achieve backup protection.
6.The self-diagnosis signal output is as follows:
- The internal temperature of the controller is >80°C;
- The chip is not working properly;
- The controller is powered off.
7.Users can choose J12, J14-16, J20, J21 according to actual needs.
Installation Dimensions of Intelligent Universal Circuit Breaker
Applications of Intelligent Universal Circuit Breaker
Commercial buildings and critical infrastructure
In commercial buildings such as shopping malls, hospitals and data centers, BYCW1 ensures reliable power supply to electrical equipment such as elevators, HVAC systems and emergency lighting. Its circuit protection features, including overload short-circuit protection, prevent costly interruptions to tenant operations or life-saving medical equipment. The circuit breaker's universal circuit breaker design supports 450V electrical ACB requirements in three-phase power grid areas, ensuring compatibility with local standards.BYCW1's power quality optimization is critical for data centers. It stabilizes power during voltage fluctuations, protecting servers and UPS systems from damage. The circuit breaker's minimum short-circuit current (Mcb) monitoring function identifies inefficient energy use, helping facility managers optimize energy use and reduce electricity costs. Its smart diagnostics alert operators to loose connections or overheating issues, enabling proactive maintenance and minimizing downtime - critical for businesses that rely on continuous power supply.In hospitals, BYCW1's universal circuit breaker lockout ensures that only authorized personnel can adjust settings, ensuring compliance with safety regulations. In conjunction with downstream Mcb circuit breaker units, the device enables selective tripping, isolating faults without affecting critical areas such as operating rooms or intensive care units.
Integration of renewable energy into the grid
BYCW1 is essential in renewable energy systems, including solar farms and wind turbines, where power line three-phase stability and voltage overload mitigation are critical. In solar installations, the breaker manages intermittent power output from PV arrays, protecting inverters and grid connection points from surges caused by cloud cover or system faults. Its overload and short-circuit protection features protect the DC/AC converter, while a universal breaker lockout ensures safe isolation during maintenance.For wind turbines, BYCW1's three-phase circuit breaker design handles the high starting current of the generator and stabilizes the voltage during grid synchronization. Its power quality device function reduces harmonic distortion and ensures compliance with grid interconnection standards. The circuit breaker's drawer configuration simplifies maintenance of remote wind farms, minimizing downtime and maintenance costs.In a microgrid, BYCW1 acts as a main circuit breaker, coordinating power flows between renewable energy, energy storage, and loads. Its intelligent control module analyzes real-time data from power system equipment and dynamically adjusts trip settings to prioritize clean energy and optimize grid stability. By integrating with Mccb molded case circuit breakers, it can build a scalable protection network to support the growing demand for distributed energy.Whether deployed in industrial, commercial or renewable energy environments, the BYCW1 Series combines advanced technology with rugged reliability to redefine circuit protection, making it an ideal choice for modern power systems.
Industrial power distribution and heavy machinery
The BYCW1 intelligent universal circuit breaker performs well in industrial power distribution systems, protecting critical infrastructure in manufacturing plants, chemical facilities, and refineries. As a three-phase circuit breaker, it ensures stable operation of high-power equipment such as motors, pumps, and compressors, for which overload and short-circuit protection are critical. The circuit breaker's universal breaker lockout prevents unauthorized tampering during maintenance, while its universal breaker lockout/lockout enhances safety in high-risk environments.In industrial environments, BYCW1's power protection circuit dynamically adjusts the trip threshold to accommodate sudden load changes, such as inrush currents generated by large motors. Its air arc extinguishing technology effectively dissipates the arc during the tripping process, ensuring long life in high-current applications. By integrating with Mccb molded case circuit breakers and Mcb molded case circuit breakers, BYCW1 can build a hierarchical protection system to minimize downtime and reduce repair costs. For example, in a steel mill, the circuit breaker's three-phase power voltage monitoring function prevents phase imbalances that can damage rolling mills or furnaces, while its power quality device function mitigates harmonic distortion caused by variable frequency drives.Withdrawable and fixed configurations are flexible: the fixed unit provides solid stability for permanent installations, while the withdrawable circuit breaker can be quickly replaced without disrupting the entire power distribution system. This adaptability makes BYCW1 ideal for retrofitting aging industrial grids where upgrading the main power circuit breaker is essential to meet modern energy efficiency standards.
Storage Workshop
Production workshop
Workshop Video
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.
Business license
High-tech enterprise certificate
ISO management system certification
Corporate honors
Product certification certificate
Product testing report
Company patent certificate
Well-known domestic partners
