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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
BY CJ19-63 Series SSPD 380v Ac Lc1-d40A Contactor Contractor Relay Ac Contactor Coils for Circuit Breaker Ac Contactor
Main Parameter Data of CJ19 - 63 AC contactor
| Product modle name | CJ19-63 | |
| Electrical life(10000 cycles） | 10 | |
| Rated Voltage | 380V | |
| Rated current le (380V)A | 63 | |
| Controllable capacitor capacity(kvar | 22 | |
| Rated insulation voltage (V) | 500 | |
| Surge suppression capability | 20le | |
| Action conditions | Actuation:(85%~110%Us;Release:(20%-75%)Us | |
| Coil power (VA) start/hold | 200/20 | |
| Auxiliary contact control capacity | AC-15 360VA;DC-3 33W | |
| Weight (kg) | 1.5 | |
Product Overview of CJ19-63 Contactor
- Capacitor Switching Contactor roles in reactive power compensation systems
- Holding Contactor functions in motor control panels for pumps, fans, and industrial machinery
- Harmonic mitigation in data centers, water treatment plants, and solar/inverter setups
- Magnetic Contactor Overload Relay replacements with superior fault protection
The Main Features of CJ19 - 63 AC Contactor
High-speed solid-state power control
This 380V AC contactor uses advanced SSPD (Solid State Power Device) technology to achieve fast switching (≤5ms) for precise control of high current circuits, making it ideal for industrial motor control and capacitor banks. Its solid-state design eliminates arcing and mechanical wear, ensuring a service life that is 10 times longer than traditional electromagnetic contactors.
Three-phase balance performance
The CJ19-63 series is optimized for three-phase systems (380V AC), alleviating phase imbalance issues through intelligent current regulation, reducing neutral current by up to 80%, and improving power factor to ≥0.95. It is ideal for commercial HVAC systems and industrial machinery.
Harmonic suppression and reactive power compensation
The contactor has built-in harmonic filtering and reactive power compensation modules, which can suppress total harmonic distortion (THD) below 5%, while dynamically adjusting reactive power to minimize energy loss. It is very suitable for data centers and renewable energy grids.
Intelligent remote monitoring
Integrated Wi-Fi/Bluetooth connectivity enables real-time diagnostics through the EWeLink app (compatible with Alexa/Google Home), remote on/off control, voltage/current monitoring, and predictive maintenance alerts. 24/7 system monitoring to reduce downtime.
Modular design, flexibility
The compact housing (105mm x 79mm x 164mm) with DIN rail mounting allows for easy installation in tight spaces. The modular design allows for quick replacement of coils (compatible with LC1-D40A) and auxiliary contacts without shutting down the system.
International certified for safety and reliability
The CJ19-63 series complies with standards and features overvoltage protection (600V surge withstand), short circuit protection and thermal overload tripping. Its IP55 rated enclosure ensures it can operate normally in harsh environments (temperature range: -25°C to +70°C).
Low power consumption, high efficiency
The AC coil (24V/110V/220V optional) consumes ≤8W in hold mode, while the solid-state design achieves ≥99% energy transfer efficiency. This reduces operating costs by 15-20% compared to traditional contactors.
Universal compatibility
Works seamlessly with circuit breakers rated up to 40A, PLC systems and smart grids. Suitable for applications such as solar inverters, pump controls and three-phase motor starters in industries such as manufacturing, agriculture and utilities.
Working Conditions of CJ19 - 63 AC Contactor
Surrounding air temperature
- Applicable temperature range: -5℃ to +40℃
- The 24-hour average temperature must be kept at or below +35°C.
Altitude:
- The installation altitude shall not exceed 2000 meters.
Weather conditions
- When the temperature reaches a maximum of +40°C, the relative humidity must not surpass 50%. At lower temperatures, higher humidity levels are acceptable, allowing up to 90% relative humidity at 20°C. It is essential to implement special measures to address potential condensation resulting from temperature fluctuations.
Installation conditions:
- The mounting surface must not be tilted more than +5° or -5° from the vertical.
Shock and Tremor
- The product should be installed in an environment without significant shaking, shock and vibration to ensure optimal performance and extend service life.
Working Principle of CJ19 - 63 AC Contactor
1. Solid-state power device (SSPD) core technology
The core of the CJ19-63 uses advanced silicon-controlled rectifiers (SCRs) and insulated-gate bipolar transistors (IGBTs) to achieve contactless switching. Unlike traditional electromagnetic contactors that rely on mechanical contacts that are prone to wear, the SSPD design enables zero-voltage switching (ZVS). This means that the device can be activated/deactivated at the zero-crossing point of the AC waveform, eliminating arcing and reducing electromagnetic interference (EMI) by 90%. Compared with mechanical contactors, the solid-state structure ensures that its service life is 10 times longer and can achieve more than 100,000 switching cycles.
2. Three-phase system optimization
Designed for 380V three-phase applications, the CJ19-63 uses Hall effect sensors to continuously monitor phase current. It dynamically balances voltage differences through intelligent current regulation, thereby alleviating phase imbalance issues common in motor control and capacitor banks. For example, it can reduce neutral current by up to 80% and improve power factor to ≥0.95. This is critical for industries such as HVAC and manufacturing, where phase imbalance can lead to equipment overheating and energy waste.
3. Harmonic suppression and reactive power compensation
The integrated active harmonic filtering module analyzes the input waveform to suppress the total harmonic distortion (THD) to less than 5%. The contactor achieves this by injecting anti-phase harmonic current through its silicon-controlled rectifier (SCR) to neutralize the distortion caused by non-linear loads such as variable frequency drives (VFDs). In addition, its reactive power compensation mechanism dynamically adjusts the capacitor bank to minimize reactive power demand, thereby reducing energy losses by 15-20%. This dual functionality makes it ideal for data centers and renewable energy grids.
4. Intelligent monitoring and remote control
The CJ19-63 is equipped with Wi-Fi/Bluetooth connectivity and integrates the EWeLink app for real-time diagnostics. Users can monitor voltage/current levels, track harmonic trends, and receive predictive maintenance alerts through the cloud. For industrial environments, the contactor also offers Modbus RTU compatibility for seamless integration with PLC systems and smart grids.
5. Modular design and safety features
The CJ19-63's DIN rail mounting housing supports quick installation and modular upgrades. Its LC1-D40A-compatible coil can be replaced without stopping the machine, and the auxiliary contacts (3NO+3NC) enable flexible control configuration. In terms of safety, the contactor complies with standards, with an IP55-rated housing (dustproof/waterproof), 600V surge withstand capability, and thermal overload tripping.
6. Energy saving and low power consumption
The AC coil (24V/110V/220V) consumes ≤8W in hold mode, while the solid-state design achieves ≥99% energy transfer efficiency. By eliminating mechanical friction and optimizing switching timing, the CJ19-63 significantly reduces operating costs compared to traditional contactors.
Appearance and installation dimensions of CJ19 - 63 AC Contactor
| Modle | Amax | Bmax | Cmax | Remarks |
| CJ19-63 | 132 | 79 | 150 | In addition to screw installation, the contactor can also be installed on a 35mm or 75mm mounting rail. |
It is the details that demonstrate the quality
Silver alloy (Ag-based) contacts with excellent conductivity and durability
CJ19-63 Series silver alloy contacts are precision engineered to handle high current switching and minimize resistance and arcing. Silver’s inherently low resistivity (1.59 µΩ·cm) ensures efficient power transmission, reducing energy losses by up to 15% compared to copper-based contacts. This makes CJ19-63 Series contacts ideal for switching capacitor contactors in dynamic reactive power compensation systems, where fast switching of capacitor banks requires low contact resistance and excellent resistance to welding.Silver alloy's arc erosion resistance can extend the contact life to more than 100,000 times, even in high-load AC-4 applications such as motor starting. By suppressing arcs and minimizing material erosion, the contacts can maintain stable performance in harsh industrial environments, ensuring compliance with power quality and harmonic standards (THD≤5%). For three-phase contactor devices, silver alloy contacts can dynamically balance phase currents, reduce neutral current by up to 80%, and increase power factor to ≥0.95.
Slider design, smooth operation and reduced wear
The CJ19-63 features a precision-machined slider mechanism that optimizes mechanical motion while minimizing friction and wear. The slider’s four-point contact design (inspired by advanced linear motion systems) evenly distributes stress for increased load-bearing capacity and reduces lateral vibration by 30% compared to conventional hinge designs. This is critical for industrial contactor applications in motor control panels and capacitor banks, where repeated switching can cause mechanical failure.The self-lubricating polymer coating (PTFE injection) of the slider ensures smooth operation over a wide temperature range (-25°C to +70°C), eliminating the need for external lubrication and reducing maintenance costs by 40%. In retained contactor applications, the slider's low friction design enables fast, noiseless actuation, ideal for three-phase automatic transfer switch systems that require millisecond response times.
Copper coil improves energy efficiency and thermal stability
The CJ19-63 uses a high-purity copper coil (conductivity up to 99.99%) with excellent electromagnetic performance, enabling low-power operation (≤8W in hold mode), which reduces energy consumption by 60% compared to standard AC coils. The multi-layer winding design of the coil minimizes eddy current losses and ensures stable operation even when the contactor voltage fluctuates (±20% of rated voltage). This is critical for power quality and distribution systems, as voltage sags can affect equipment performance.The thermal conductivity of the copper coil (401 W/m·K) effectively dissipates heat, keeping the coil temperature at ≤60°C under full load conditions, 20°C lower than traditional designs. This extends the service life of the coil and prevents insulation degradation, a common failure mode in electromagnetic contactor overload relay applications. For reactive power compensation grids, the coil's fast response (≤10ms) ensures seamless integration with dynamic compensation systems, stabilizing voltage levels and reducing flicker.
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Production workshop
Workshop Vedio
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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