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Power Capacitors
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BY CJ19-63 Series Contactor High Quality White Panel Ac Contactor 220v Coil
Main Parameter Data of CJ19 - 63 AC contactor
| Product modle name | CJ19-63 | |
| Electrical life(10000 cycles） | 10 | |
| Rated Voltage | 220V | |
| 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
The Main Features of CJ19 - 63 AC Contactor
High capacity three-phase control
Designed for three-phase systems rated up to 63A, it is ideal for industrial motor control, capacitor banks and power distribution. Ideal for balancing loads in three-phase unbalanced solutions.
Advanced Inrush Current Suppression
The double-layer contact system and built-in current limiting resistor can reduce the closing inrush current by 90%, protecting capacitors and sensitive equipment during startup.
Efficient reactive power compensation
Optimized for low voltage reactive power compensation applications, it improves power factor and reduces energy waste in commercial and industrial power grids.
Powerful arc extinguishing technology
The double-break contact design and longitudinal slot arc extinguishing method ensure safe operation even under high inductive loads, minimize wear and extend service life.
Intelligent control integration
Supports integration with intelligent power management systems to achieve remote monitoring and automatic switching, consistent with smart grid and IoT applications.
Multiple mounting options
It can be easily installed in compact panels or standard switch cabinets by using 35mm/75mm DIN rail or screw mounting.
International certified for safety and reliability
It complies with international safety standards and has IP55-level dust and moisture resistance, ensuring reliable performance even in harsh environments.
Premium white panel design
The stylish white housing enhances control panel visibility while resisting corrosion and UV damage, making it suitable for indoor/outdoor use in varying climates.
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 Steps of CJ19 - 63 AC Contactor
Electromagnetic activation via 220V coil
When the 220V AC control voltage is applied to the contactor coil, a magnetic field is generated, which excites the electromagnetic system. This initial step triggers the contactor to work, making it suitable for industrial environments powered by AC.
Armature attraction and contact closure
Electromagnetic force pulls the movable armature toward the fixed core, overcoming the spring tension. This motion drives the main contacts (rated at 63A in a three-phase system) closed, establishing electrical continuity of the power circuit. Ideally suited for three-phase motor control and capacitor banks.
Inrush Current Mitigation
The built-in double-layer contact system and current-limiting resistors automatically suppress up to 90% of the inrush current when the contacts are closed. This protects sensitive equipment such as capacitors from being damaged by inrush current during startup and complies with harmonic suppression requirements.
Arc extinguishing during operation
Under high inductive loads, the double-break contact design and longitudinal slot arc extinguishing technology divert and extinguish the arc. This ensures safe operation and extends contact life, which is critical for reactive power compensation applications.
Power circuit conduction
The contactor contacts are fully closed, enabling efficient power transmission in three-phase systems, supporting industrial motor control, power distribution and smart grid integration. Its design has been CE certified to ensure compliance with international safety standards.
Intelligent control integration
The auxiliary contacts of the contactor can be integrated with the IoT-based power management system. Remote monitoring and automatic switching can be adjusted according to grid demand, optimizing reactive power compensation and reducing energy waste.
Power off and spring return
When the control voltage is removed, the electromagnetic field collapses. The armature returns to its original position via a spring mechanism, opening the main contacts and interrupting the current flow. This rapid reset prevents residual current problems.
Security protection mechanism
The IP55 rated housing is dust and moisture proof, and the thermal overload protection (optional) prevents overcurrent. These features ensure that the contactor can operate reliably in harsh industrial environments.
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. |
Applications of CJ19 - 63 AC contactor
Smart grid access and dynamic reactive power compensation
The BY CJ19-63 series excels in smart grid applications as a key component for dynamic reactive power compensation and voltage stabilization. As a switched capacitor contactor, it integrates seamlessly with IoT-based power quality and motor analyzer systems to monitor and adjust reactive power demand in real time. For example, in a smart industrial park, the contactor's 220V coil and silver alloy contacts can accurately switch capacitor banks, reducing voltage sags by up to 20% during peak loads. Its electromagnetic design reduces inrush current by 90%, protecting equipment from surge damage while optimizing power quality and distribution efficiency. The contactor's auxiliary contacts support remote control by using the contactor's three-phase automatic transfer switch, ensuring uninterrupted power supply during grid fluctuations. With an IP55-rated flame-retardant housing, it can withstand harsh outdoor conditions (-20°C to +60°C), making it an ideal choice for wind farms and solar installations where dynamic reactive power regulation is a must.
Industrial motor control and harmonic suppression
In industrial environments, the BY CJ19-63 series serves as a reliable AC contactor for three-phase motor control, solving problems such as power quality and harmonics as well as three-phase imbalance. Its double-break contacts and longitudinal slot arc-extinguishing technology effectively eliminate arcs under high inductive loads, extending contact life by 30% compared to standard models. For example, in a manufacturing plant, the contactor's electromagnetic contactor overload relay protects the motor from overcurrent and phase loss, while its contactor latching circuit ensures stable operation during voltage sags. The contactor's compatibility with power quality and motor analyzer systems allows predictive maintenance, reducing downtime by identifying early signs of motor degradation. By mitigating harmonic distortion and balancing phase currents, it complies with IEEE-519 standards, ensuring clean power for CNC machines and robotic systems.
Capacitor Bank and Reactive Power Correction
The BY CJ19-63 series is designed for reactive power compensation of capacitor banks, and its capacitor switching contactor design suppresses inrush current during capacitor charging. In HVAC systems in commercial buildings, the contactor's double-layer contact suppression reduces inrush current to less than 3 times the rated value, preventing premature capacitor failure. Its contactor economizer reduces coil power consumption by 60% during operation, reducing energy costs for facilities with frequent switching demands. The contactor's 63A rated current and silver alloy contacts efficiently handle large-capacity capacitor banks, while CE certification ensures it complies with international safety standards. By improving power factor correction, it can reduce power company fines and increase grid stability, making it a cost-effective solution for data centers and industrial parks.
Storage Workshop
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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