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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
BYFK Series Intelligent Low-Voltage Composite Switch AC 380V Three Phases Switch
Technical Parameters of BYFK Series Intelligent Low-Voltage Composite Switch
| Model | BYFK Series Intelligent Low-Voltage Composite Switch |
| Ambient temperature | -20℃~+55℃ |
| Relative humidity | At 40℃,20%-90% |
| Rated voltage | 380V/220V three-phase four wire AC 50Hz |
| Allowable deviation | The synchronous change of three-phase voltage shall not exceed ±20% |
| Voltage distortion rate | <5% |
| Rated frequency | 50Hz |
| Rated current | <80A(Ordinary type); <80A(With circuit breaker type) |
| Service life | 500000 times |
| Phase number | △Delta connection method (three-phase); Y-shaped connection method (single-phase) |
| Three phase control capacity | <40Kvar |
| Single-phase control capacity | <10Kvar |
| Power dissipation | <1.5VA |
| Contact pressure drop | <100mV |
| Contact withstand voltage | >1600V |
| Response time | <1000ms |
| Interval between each turn on and turn off | >5 Second |
| Interval between two consecutive connections | =35 Second |
| Control signal | DC12V士20%;Exchange/Communication (Optional) |
| Input impedance | >6.8K |
| Conduction impedance | <0.0032 |
| Inrush current | Less than 1.5 times the rated current |
| Rated current of feedback contact | 1A (put on as connected) |
Overview of BYFK Series Intelligent Low-Voltage Composite Switch
Introducing the BYFK Series Intelligent Low-Voltage Composite Switch AC 380V by Baoyu Holdings Co., Ltd. – a revolutionary solution for Electrical Switchgear And Protection, designed to enhance Power Quality and safeguard critical systems in Three Phase Power Distribution. This advanced switch combines thyristor and magnetic relay technology for zero-crossing switching, minimizing inrush currents and ensuring seamless operation in Low Voltage Electrical networks. Equipped with Overload And Short Circuit Protection, Overvoltage Protection, and Emi Switchgear capabilities, it shields equipment from surges, harmonics, and EMI/RFI interference while optimizing Three Phase Voltage stability. Ideal for Low Voltage Distribution and Low Voltage Equipment, the BYFK Series supports Three Phase Power systems across industries, including renewable energy, data centers, and commercial buildings. Built to global standards， this compact, reliable switch ensures 100,000+ operation cycles and integrates with smart grids for efficient Low Voltage Current management. Elevate your Electrical Power Quality with the BYFK Series – where innovation meets unmatched circuit protection.After BYFK Series Intelligent Low-Voltage Composite Switch received external control signals, through intelligent judgment, the optimal switching point isautomatically found to ensure zero crossing switching, low inrush current, non sintering of contacts, lowenergy consumption, and has functions such as voltage anomaly protection, phase loss protection.component fault protection, and operation indication.Compared with similar products, the BYFK series of intelligent low-voltage composite switches greatlyimprove their inrush current and safety reliability.
Technical Features BYFK Series Intelligent Low-Voltage Composite Switch
- Equipped with Overload And Short Circuit Protection and Overvoltage Protection：the BYFK Series safeguards critical systems from surges, overloads, and short circuits while adhering to global standards. Its Emi Switchgear capabilities suppress electromagnetic interference (EMI), ensuring clean power delivery to sensitive equipment. Designed for Low Voltage Electrical and Low Voltage Equipment setups, this compact switch efficiently manages Low Voltage Current up to 60A, enhancing energy efficiency and reducing operational costs.
- The BYFK Series stands out with its Three Phase Electric stability：addressing imbalances and improving Power Quality through reactive power compensation. Its hybrid architecture supports Switchgear Equipment integration, enabling IoT-enabled energy management and remote monitoring. Built for durability, it withstands harsh environments with 100,000+ operation cycles and robust construction, ensuring long-term reliability.
- Using a microprocessor to monitor the operation status of relays, input power, and loads in real-time, ithas comprehensive protection functions.
- Voltage fault phase loss protection: When the system voltage is in phase loss power supply, the switch refuses to close. lf phase loss occurs after connection, it will automatically disconnect.
- Power supply voltage phase loss protection: When the working power supply is phase loss, the switch refuses to close. lf phase loss occurs after being connected, it will automatically disconnect.
- Self diagnostic fault protection: The system automatically monitors the operating status of the relay. If a fault occurs, it refuses to shut down or automatically disconnects.
- No load protection: When the load is not connected, the switch refuses to close.A
- Power outage protection: After being connected, if there is a sudden power outage, it will automaticallydisconnect.
Details Reveal Quality
Premium-Grade Copper Alloy Contacts:Engineered with high-purity copper alloy conductive components, the BYFK Series ensures ultra-low resistance and exceptional thermal stability, minimizing energy loss and enhancing durability for low voltage composite switches. This material choice directly supports harmonic mitigation solutions and reactive power compensation by maintaining consistent conductivity under fluctuating loads.
Industrial-Grade Capacitors & Flame-Retardant Enclosure:Equipped with certified capacitors and a self-extinguishing PC/ABS enclosure, the switch guarantees reliable intelligent circuit protection and energy-efficient power management. The flame-retardant housing (UL94 V-0 rated) ensures compliance with AC 380V switch safety standards, critical for harsh industrial environments.
High-Precision Current Sensors & Anti-Corrosion Coating:Integrated 0.5S-class current sensors and a nanotechnology anti-oxidation coating on terminals enable precise three-phase imbalance correction and long-term resistance to humidity/chemical exposure. This ensures stable performance in smart grid applications while reducing maintenance costs.
Common Usage Scenarios of BYFK Series Intelligent Low-Voltage Composite Switch
Industrial Harmonic Mitigation
- Deployed in manufacturing plants with non-linear loads (e.g., VFDs, CNC machines) to suppress harmonic distortion.
- Integrates with active harmonic filters for THD reduction in data centers and semiconductor facilities.
Reactive Power Compensation
- Automatically adjusts capacitor bank switching to improve power factor correction (PFC) in: Solar/Wind farms (grid-tied inverters)；HVAC systems and large motor-driven equipment.
Three-Phase Load Balancing
- Corrects voltage imbalances in:Commercial buildings (elevators, lighting systems);Mining/oil & gas operations with uneven power distribution.
Intelligent Circuit Protection
- Safeguards sensitive electronics (e.g., PLCs, medical devices) from:Voltage surges/sags;Short-circuit faults via fast-disconnecting contacts.
Renewable Energy Integration
- Ensures stable microgrid synchronization for:Hybrid solar-diesel systems;EV charging stations with fluctuating demand.
Storage Workshop
Production workshop
Workshop Vedio
Baoyu Holdings Co., Ltd.
Baoyu Holdings Co., Ltd. is distinguished in the production of intelligent fully controlled power quality products—active power filters, static var generators, intelligent capacitors, power capacitors, reactive power compensators, composite switches, capacitor contactors, thyristor switches, reactors, and more. The superior quality of our products has established a presence in the global market, exporting to over ten nations, including those in Europe, America, Southeast Asia, and the Middle East. Our products have extensive applications in reactive power compensation and harmonic control scenarios, such as factories, petrochemicals, coal mines, metallurgy, shipping, airports, and solar and wind energy generation. We have been successfully operating in several key projects across China for an extended period.
Product Excellence
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Harmonic Mitigation & Power Quality Improvement: Our APF and SVG systems eliminate harmonic interference, reduce energy losses, and enhance grid reliability, ideal for factories, solar/wind farms, and heavy industries.
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Reactive Power Compensation: Customizable solutions address voltage fluctuations and three-phase imbalances, boosting energy efficiency by up to 30%.
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Smart Circuit Protection: Intelligent capacitors and hybrid compensation devices feature real-time monitoring, remote control, and fail-safe mechanisms, minimizing downtime.
At Baoyu Holding Co., Ltd., our capacitor storage facility employs state-of-the-art temperature and humidity regulation and features a fully automated warehousing system utilizing innovative shelving solutions for three-dimensional, high-density secure storage of capacitor units. This entirely new storage facility enhances storage capacity by 200 percent—eliminating the risk of oxidation or product loss, thanks to specialized inspection equipment integrated with fire alarms and dust/anti-static measures. Parameter stability is also monitored through monthly sampling.
In addition, our cleanroom facility accommodates all operations, from compounding, where precise material formulation occurs, to the production floor, where new products are created. Natural daylight illuminates this process effectively, and artificial lighting complements it to establish an optimal workspace. The plant layout has been strategically designed to ensure maximum efficiency, facilitating smooth and rapid movement throughout the facility for high productivity, with cross-trained technicians ready to address any manufacturing challenges promptly. Automated assembly lines equipped with in-process quality control systems guarantee dimensional and electrical compliance for each batch, while ISO standards ensure alignment with global industry requirements.
By integrating advanced automation, data analytics, and stringent quality protocols, we achieve near-zero defects, providing durable products and customized solutions tailored to customer requirements. This commitment to operational excellence has positioned Baoyu as a reliable partner for mission-critical power solutions worldwide.
Business license
High-tech enterprise certificate
ISO management system certification
Corporate honors
Product certification certificate
Product testing report
Company patent certificate
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