I. Introduction to Three-Phase Magnetic Contactors
A three-phase magnetic contactor, also known as a contactor, is an industrial electrical device commonly used for switching electrical circuits ON/OFF (single contactor type), reversing motor direction (dual contactor type), and controlling electrical loads and motors.
It can be operated remotely, controlled directly, or combined with automatic control circuits.
Modern contactors can handle electrical loads with rated voltages and currents reaching up to 500V and 600A, depending on the model.
I. Introduction to Three-Phase Magnetic Contactors
The 220V three-phase magnetic contactor is one of the most important and commonly used electrical devices in power systems, especially in industrial applications.
This device is used to automatically switch electrical circuits ON and OFF to control high-power equipment such as electric motors, generators, capacitor banks, and lighting systems.
A three-phase magnetic contactor is specifically designed for three-phase electrical systems.
Modern contactors can control electrical loads at their rated voltage, with some models supporting ratings of up to 500V and 600A.
With advanced technology, three-phase magnetic contactors are widely used in industrial and commercial applications.
Developments in electrical and electronic technology have also improved the performance of these devices, making electrical systems easier to operate and providing better protection.
220V Three-Phase Magnetic Contactor
II. Construction and Operating Principle
1. Construction of a Three-Phase Magnetic Contactor
A three-phase magnetic contactor consists of several main components:
Electromagnetic Coil: This is the main component that generates magnetic force when a control voltage is applied. The magnetic force pulls the main contacts together, connecting the three-phase power supply to the electrical equipment.
Main Contacts: Consist of three sets of contacts for the three phases. They are used to connect and disconnect three-phase electrical circuits.
Auxiliary Contacts: In addition to the main contacts, the contactor also has auxiliary contacts, including NO (Normally Open) and NC (Normally Closed). These contacts are used to control auxiliary circuits or indicate the operating status of the contactor.
Magnetic Core: Consists of two parts: a fixed core and a moving core. When the coil is energized, the moving core is attracted toward the fixed core, causing the contacts to close.
Protective Housing: Made from insulating and heat-resistant materials to protect the internal components from environmental factors such as dust, water, and mechanical impacts.
2. Operating Principle
When the contactor receives a control signal from a push button or an automatic control device, voltage is supplied to the electromagnetic coil, usually 220V or 380V.
The energized coil generates a magnetic field that attracts the moving core. This movement closes the main contacts, connecting the three-phase power supply to the electrical equipment.
When the control signal is removed, the coil is de-energized, and the magnetic force disappears. The contacts then open, disconnecting the electrical circuit.
This operating principle allows electrical equipment to be controlled efficiently and safely.
III. Practical Applications of Three-Phase Magnetic Contactors
1. Industrial Applications
Three-phase magnetic contactors are widely used in factories, manufacturing facilities, and industrial zones. Common applications include:
Three-Phase Motor Control: Three-phase motors are essential in manufacturing and industrial operations. Magnetic contactors are used to switch motor power circuits ON and OFF, allowing motors to start and stop. When combined with suitable protective devices, they also help protect motors against electrical faults such as overloads, overcurrent, and short circuits.
Water Pump and Air Compressor Systems: In water treatment and compressed air systems, magnetic contactors are used to automatically control pumps and air compressors, helping ensure continuous and safe operation.
Power Factor Correction Capacitors: Magnetic contactors are also used to control capacitor banks, helping improve the power factor of electrical systems, reduce energy losses, and increase operating efficiency.
220V Three-Phase Magnetic Contactor for Industrial Applications
2. Commercial and Residential Applications
Besides industrial applications, three-phase magnetic contactors are also used in commercial and residential electrical systems, such as:
Air Conditioning Systems: Magnetic contactors are used to control compressors and fans in large air conditioning systems, helping maintain a comfortable indoor environment.
Lighting Systems: In high-rise buildings and shopping malls, magnetic contactors are used to automatically control lighting systems, helping save energy and extend equipment service life.
Renewable Energy Systems: Three-phase magnetic contactors can also be integrated into solar and wind power systems to control and protect energy conversion equipment.
220V Three-Phase Magnetic Contactor for Office Applications
IV. Key Features of Three-Phase Magnetic Contactors
1. High Load Capacity
Three-phase magnetic contactors are designed to handle high electrical loads, with some models rated at 600A or higher.
This allows them to operate reliably in high-power electrical systems while reducing the risk of overloads and short circuits when used with suitable protective devices.
2. Safety Protection Design
Modern three-phase magnetic contactors are designed with protective features against dust, water, and mechanical impacts.
These features help ensure reliable operation in harsh environments and reduce electrical safety risks.
3. Compatible with Thermal Overload Relays
One of the key advantages of three-phase magnetic contactors is their ability to work with thermal overload relays to protect electrical systems against overloads, overcurrent, and overheating.
When the thermal overload relay detects an overload, it disconnects the contactor control circuit, causing the contactor to open. This helps protect connected equipment and prevent damage.
4. High Flexibility
Three-phase magnetic contactors can be easily combined with other automatic control devices, such as timers, remote controllers, and sensors.
This improves the efficiency and flexibility of electrical system control and management.
V. Advanced Functions
1. Automatic Control
One of the main advantages of three-phase magnetic contactors is their ability to operate automatically through remote control devices or automation systems.
This reduces manual operation, increases automation, and improves operating efficiency.
2. Electrical System Protection
Three-phase magnetic contactors are not only used for switching and control but can also work with protective devices to disconnect electrical circuits when faults are detected.
This function is especially useful in industrial electrical systems, where electrical faults can cause serious damage.
3. Energy Saving
Using three-phase magnetic contactors helps improve the operating efficiency of electrical equipment.
With accurate control and automation, electrical systems can operate more efficiently, reduce unnecessary energy consumption, and extend equipment service life.
220V Three-Phase Magnetic Contactor for Commercial Applications
How to Choose a Three-Phase Magnetic Contactor
There are many types of magnetic contactors available on the electrical equipment market.
To choose a suitable three-phase magnetic contactor, users should pay attention to the following technical specifications khởi động từ 3 pha phù hợp. Mọi người cần phải để ý đến những thông số cơ bản sau đây:
Rated Operating Voltage (Ue): Indicates the rated voltage at which the contactor is designed to operate.
Rated Impulse Withstand Voltage (Uimp): Indicates the impulse voltage that the contactor can withstand.
Coil Control Voltage: Check whether the contactor coil uses an AC or DC power supply and its rated voltage, such as 380V, 220V, 110V, 48V, or 24V.
Short-Circuit Current (Icu): The source describes this as the short-circuit current that the contactor contacts can withstand for 1.3 seconds when a short circuit occurs in the load.
Rated Current (In): Indicates the rated current of the contactor under normal operating conditions at its rated voltage.
Switching Frequency: Check how many switching operations the contactor can perform per hour, such as 1,500, 1,200, 600, 300, 182, 120, 100, or 30 operations per hour.
Service Life: After a long period of switching operations, the contacts and mechanical components may wear out and lose their original operating accuracy. The contactor should no longer be used when it cannot operate reliably.
VI. Conclusion
The 220V three-phase magnetic contactor from KAWASAN is an important electrical device commonly used in industrial, commercial, and residential electrical systems.
With its high load capacity, safety features, and practical functions, this device helps improve the operating efficiency and safety of electrical systems.
Trong việc lắp đặt tủ điện công nghiệp thì không thể thiếu việc lắp khởi động từ 3 pha (Contactor). Khởi động từ 3 pha được cấu tạo gồm các thành phần: Cơ cấu điện từ (nam châm điện), hệ thống dập hồ quang, hệ thống tiếp điểm (tiếp điểm chính và phụ)
Electromagnetic System
Nam châm điện gồm có 4 thành phần:
– Cuộn dây dùng tạo ra lực hút nam châm.
– Lõi sắt (hay mạch từ) của nam châm gồm hai phần: Phần cố định và phần nắp di động. Lõi thép nam châm có thể có dạng EE, EI hay dạng CI.
– Lò xo phản lực có tác dụng đẩy phần nắp di động trở về vị trí ban đầy
Hệ thống dập hồ quang điện tủ điện điều khiển:
Khi Contactor trong tủ điện chuyển mạch, hồ quang điện. Sẽ xuất hiện làm các tiếp điểm bị cháy, mòn dần. Vì vậy cần có hệ thống dập hồ quang. Gồm nhiều vách ngăn làm bằng kim loại đặt cạnh bên hai tiếp điểm tiếp xúc nhau. Nhất là ở các tiếp điểm chính của Contactor trong tủ điện.
Hệ thống tiếp điểm của khởi động từ trong tủ điện điều khiển.
Hệ thống tiếp điểm của khởi động từ Contactor trong tủ điện liên hệ với phần lõi từ di động qua bộ phận liên động về cơ. Tuỳ theo khả năng tải dẫn qua các tiếp điểm, ta có thể chia các tiếp điểm của Contactor thành hai loại:
– Tiếp điểm chính của khởi động từ Contactor trong tủ điện: Có khả năng cho dòng điện lớn đi qua (từ 10A đến vài nghìn A, thí dụ khoảng 1600A hay 2250A). Tiếp điểm chính là tiếp điểm thường hở đóng lại khi cấp nguồn vào mạch từ của Contactor trong tủ điện làm mạch từ Contactor hút lại.
– Tiếp điểm phụ của khởi động từ Contactor trong tủ điện : Có khả năng cho dòng điện đi qua các tiếp điểm nhỏ hơn 5A. Tiếp điểm phụ có hai trạng thái: Thường đóng và thường hở của Contactor trong tủ điện .
1. General Specifications
Product Name: Kawasan 3-Phase 220V Contactor
Device Type: Contactor
Series: KWC-3P
Coil Voltage: 220V
Number of Phases: 3 Phases
Frequency: 50/60Hz
Switching Method: Electromagnetic switching
Applications: Control of 3-phase motors, pumps, lighting systems, control cabinets, industrial electrical systems
2. Models
Model KWC-3P-12A: Rated current 12A
Model KWC-3P-18A: Rated current 18A
Model KWC-3P-25A: Rated current 25A
Model KWC-3P-32A: Rated current 32A
Model KWC-3P-40A: Rated current 40A
Model KWC-3P-50A: Rated current 50A
3. Construction Main
Coil: Creates electromagnetic attraction
Iron core/magnetic circuit: Consists of a fixed part and a movable cover
Return spring: Pushes the movable cover back to its original position when power is lost
Contact system: Consists of main contacts and auxiliary contacts
Arc suppression system: Helps limit contact wear and tear when switching loads on and off
4. Contacts
Main contacts: Used to switch large load currents on and off
Number of main contacts: 3 contacts for 3 phases
Auxiliary contacts: NO and NC
NO: Normally open contact
NC: Normally closed contact
Current through auxiliary contacts: Less than 5A
5. Protection features
Supports thermal relay integration: Overload protection
Arc suppression system: Reduces contact wear and tear
Protection design: Limits the impact of dust, water, and the operating environment
Electrical equipment protection: Helps to switch loads on and off more safely in the control system
6. Operating principle
When power is supplied to the coil: The electromagnet creates an attractive force, pulling The magnetic core moves and closes the main contacts.
When power is lost or the control signal is interrupted: The coil loses its magnetic field, and the spring pushes the contacts back to their original state.
When combined with a thermal relay: If an overload is detected, the thermal relay will interrupt the control circuit to protect the equipment.
Khởi Động Từ 3 Pha 220V là một trong những thiết bị điện quan trọng và phổ biến trong các hệ thống điện động lực, đặc biệt là trong công nghiệp. Đây là thiết bị giúp điều khiển việc đóng ngắt mạch điện tự động cho các thiết bị công suất lớn như động cơ, máy phát điện, tụ bù và hệ thống chiếu sáng. Khởi động từ 3 pha là một loại đặc biệt dùng cho các hệ thống điện 3 pha. Các thiết bị Contactor ngày này đều có thể đáp ứng việc điều khiển phụ tải với điện áp định mức. Dòng định mức tối đa có thể lên tới 500V – 600A…
Với nền tảng kỹ thuật vượt trội. Khởi động từ 3 pha đã và đang được ứng dụng rộng rãi trong các lĩnh vực công nghiệp và thương mại. Sự phát triển của công nghệ điện tử cũng đã góp phần nâng cao hiệu suất của thiết bị này, mang lại sự tiện lợi và bảo vệ toàn diện cho hệ thống điện.
220V Three-Phase Magnetic Contactor
II. Construction and Operating Principle
1. Construction of a Three-Phase Magnetic Contactor
A three-phase magnetic contactor consists of several main components:
Electromagnetic Coil: This is the main component that generates magnetic force when a control voltage is applied. The magnetic force pulls the main contacts together, connecting the three-phase power supply to the electrical equipment.
Main Contacts: Consist of three sets of contacts for the three phases. They are used to connect and disconnect three-phase electrical circuits.
Auxiliary Contacts: In addition to the main contacts, the contactor also has auxiliary contacts, including NO (Normally Open) and NC (Normally Closed). These contacts are used to control auxiliary circuits or indicate the operating status of the contactor.
Magnetic Core: Consists of two parts: a fixed core and a moving core. When the coil is energized, the moving core is attracted toward the fixed core, causing the contacts to close.
Protective Housing: Made from insulating and heat-resistant materials to protect the internal components from environmental factors such as dust, water, and mechanical impacts.
2. Operating Principle
Khi khởi động từ nhận được tín hiệu điều khiển từ nút nhấn hoặc thiết bị tự động. Cuộn hút được cung cấp điện áp, thường là 220V ( hoặc 380V), tạo ra lực từ kéo lõi từ chuyển động. Lõi từ này kéo các tiếp điểm chính của khởi động từ đóng lại, giúp kết nối mạch điện 3 pha với thiết bị động lực.
Khi tín hiệu điều khiển ngắt, cuộn hút mất điện, lực từ giảm đi, khiến các tiếp điểm mở ra và ngắt kết nối mạch điện. Điều này giúp điều khiển hoạt động của các thiết bị một cách hiệu quả và an toàn.
III. Practical Applications of Three-Phase Magnetic Contactors
1. Industrial Applications
Three-phase magnetic contactors are widely used in factories, manufacturing facilities, and industrial zones. Common applications include:
Three-Phase Motor Control: Three-phase motors are essential in manufacturing and industrial operations. Magnetic contactors are used to switch motor power circuits ON and OFF, allowing motors to start and stop. When combined with suitable protective devices, they also help protect motors against electrical faults such as overloads, overcurrent, and short circuits.
Water Pump and Air Compressor Systems: In water treatment and compressed air systems, magnetic contactors are used to automatically control pumps and air compressors, helping ensure continuous and safe operation.
Power Factor Correction Capacitors: Magnetic contactors are also used to control capacitor banks, helping improve the power factor of electrical systems, reduce energy losses, and increase operating efficiency.
220V Three-Phase Magnetic Contactor for Industrial Applications
2. Commercial and Residential Applications
Besides industrial applications, three-phase magnetic contactors are also used in commercial and residential electrical systems, such as:
Air Conditioning Systems: Magnetic contactors are used to control compressors and fans in large air conditioning systems, helping maintain a comfortable indoor environment.
Lighting Systems: In high-rise buildings and shopping malls, magnetic contactors are used to automatically control lighting systems, helping save energy and extend equipment service life.
Renewable Energy Systems: Three-phase magnetic contactors can also be integrated into solar and wind power systems to control and protect energy conversion equipment.
220V Three-Phase Magnetic Contactor for Office Applications
IV. Key Features of Three-Phase Magnetic Contactors
1. High Load Capacity
Three-phase magnetic contactors are designed to handle high electrical loads, with some models rated at 600A or higher.
This allows them to operate reliably in high-power electrical systems while reducing the risk of overloads and short circuits when used with suitable protective devices.
2. Safety Protection Design
Modern three-phase magnetic contactors are designed with protective features against dust, water, and mechanical impacts.
These features help ensure reliable operation in harsh environments and reduce electrical safety risks.
3. Compatible with Thermal Overload Relays
One of the key advantages of three-phase magnetic contactors is their ability to work with thermal overload relays to protect electrical systems against overloads, overcurrent, and overheating.
When the thermal overload relay detects an overload, it disconnects the contactor control circuit, causing the contactor to open. This helps protect connected equipment and prevent damage.
4. High Flexibility
Three-phase magnetic contactors can be easily combined with other automatic control devices, such as timers, remote controllers, and sensors.
This improves the efficiency and flexibility of electrical system control and management.
V. Advanced Functions
1. Automatic Control
One of the main advantages of three-phase magnetic contactors is their ability to operate automatically through remote control devices or automation systems.
This reduces manual operation, increases automation, and improves operating efficiency.
2. Electrical System Protection
Three-phase magnetic contactors are not only used for switching and control but can also work with protective devices to disconnect electrical circuits when faults are detected.
This function is especially useful in industrial electrical systems, where electrical faults can cause serious damage.
3. Energy Saving
Using three-phase magnetic contactors helps improve the operating efficiency of electrical equipment.
With accurate control and automation, electrical systems can operate more efficiently, reduce unnecessary energy consumption, and extend equipment service life.
220V Three-Phase Magnetic Contactor for Commercial Applications
How to Choose a Three-Phase Magnetic Contactor
There are many types of magnetic contactors available on the electrical equipment market.
To choose a suitable three-phase magnetic contactor, users should pay attention to the following technical specifications khởi động từ 3 pha phù hợp. Mọi người cần phải để ý đến những thông số cơ bản sau đây:
Rated Operating Voltage (Ue): Indicates the rated voltage at which the contactor is designed to operate.
Rated Impulse Withstand Voltage (Uimp): Indicates the impulse voltage that the contactor can withstand.
Coil Control Voltage: Check whether the contactor coil uses an AC or DC power supply and its rated voltage, such as 380V, 220V, 110V, 48V, or 24V.
Short-Circuit Current (Icu): The source describes this as the short-circuit current that the contactor contacts can withstand for 1.3 seconds when a short circuit occurs in the load.
Rated Current (In): Indicates the rated current of the contactor under normal operating conditions at its rated voltage.
Switching Frequency: Check how many switching operations the contactor can perform per hour, such as 1,500, 1,200, 600, 300, 182, 120, 100, or 30 operations per hour.
Service Life: After a long period of switching operations, the contacts and mechanical components may wear out and lose their original operating accuracy. The contactor should no longer be used when it cannot operate reliably.
VI. Conclusion
The 220V three-phase magnetic contactor from KAWASAN is an important electrical device commonly used in industrial, commercial, and residential electrical systems.
With its high load capacity, safety features, and practical functions, this device helps improve the operating efficiency and safety of electrical systems.
Additional information
Power
12A, 18A, 25A, 32A, 40A, 50A
3 reviews for Khởi Động Từ 3 Pha 220V KWC-3P-50A-40A/32A2-25A2-18A-12A
5 out of 5
Đức Anh–
Khởi động từ có độ hoàn thiện tốt, phần vỏ chắc chắn, thao tác lắp đặt thuận tiện. Giúp hệ thống điện trong xưởng hoạt động an toàn hơn.
5 out of 5
Văn Phúc–
Contactor đóng ngắt rất nhạy, hoạt động ổn định. Lắp cho tủ điều khiển máy bơm hơn 3 tháng vẫn chạy tốt.
5 out of 5
Thành Luân–
KWC-3P dùng cho mạch 3 pha khá ổn, đóng ngắt thiết bị nhanh và hoạt động ổn định
Khởi Động Từ 3 Pha 220V là một trong những thiết bị điện quan trọng và phổ biến trong các hệ thống điện động lực, đặc biệt là trong công nghiệp. Đây là thiết bị giúp điều khiển việc đóng ngắt mạch điện tự động cho các thiết bị công suất lớn như động cơ, máy phát điện, tụ bù và hệ thống chiếu sáng. Khởi động từ 3 pha là một loại đặc biệt dùng cho các hệ thống điện 3 pha. Các thiết bị Contactor ngày này đều có thể đáp ứng việc điều khiển phụ tải với điện áp định mức. Dòng định mức tối đa có thể lên tới 500V – 600A…
Với nền tảng kỹ thuật vượt trội. Khởi động từ 3 pha đã và đang được ứng dụng rộng rãi trong các lĩnh vực công nghiệp và thương mại. Sự phát triển của công nghệ điện tử cũng đã góp phần nâng cao hiệu suất của thiết bị này, mang lại sự tiện lợi và bảo vệ toàn diện cho hệ thống điện.
220V Three-Phase Magnetic Contactor
II. Construction and Operating Principle
1. Construction of a Three-Phase Magnetic Contactor
A three-phase magnetic contactor consists of several main components:
Electromagnetic Coil: This is the main component that generates magnetic force when a control voltage is applied. The magnetic force pulls the main contacts together, connecting the three-phase power supply to the electrical equipment.
Main Contacts: Consist of three sets of contacts for the three phases. They are used to connect and disconnect three-phase electrical circuits.
Auxiliary Contacts: In addition to the main contacts, the contactor also has auxiliary contacts, including NO (Normally Open) and NC (Normally Closed). These contacts are used to control auxiliary circuits or indicate the operating status of the contactor.
Magnetic Core: Consists of two parts: a fixed core and a moving core. When the coil is energized, the moving core is attracted toward the fixed core, causing the contacts to close.
Protective Housing: Made from insulating and heat-resistant materials to protect the internal components from environmental factors such as dust, water, and mechanical impacts.
2. Operating Principle
Khi khởi động từ nhận được tín hiệu điều khiển từ nút nhấn hoặc thiết bị tự động. Cuộn hút được cung cấp điện áp, thường là 220V ( hoặc 380V), tạo ra lực từ kéo lõi từ chuyển động. Lõi từ này kéo các tiếp điểm chính của khởi động từ đóng lại, giúp kết nối mạch điện 3 pha với thiết bị động lực.
Khi tín hiệu điều khiển ngắt, cuộn hút mất điện, lực từ giảm đi, khiến các tiếp điểm mở ra và ngắt kết nối mạch điện. Điều này giúp điều khiển hoạt động của các thiết bị một cách hiệu quả và an toàn.
III. Practical Applications of Three-Phase Magnetic Contactors
1. Industrial Applications
Three-phase magnetic contactors are widely used in factories, manufacturing facilities, and industrial zones. Common applications include:
Three-Phase Motor Control: Three-phase motors are essential in manufacturing and industrial operations. Magnetic contactors are used to switch motor power circuits ON and OFF, allowing motors to start and stop. When combined with suitable protective devices, they also help protect motors against electrical faults such as overloads, overcurrent, and short circuits.
Water Pump and Air Compressor Systems: In water treatment and compressed air systems, magnetic contactors are used to automatically control pumps and air compressors, helping ensure continuous and safe operation.
Power Factor Correction Capacitors: Magnetic contactors are also used to control capacitor banks, helping improve the power factor of electrical systems, reduce energy losses, and increase operating efficiency.
220V Three-Phase Magnetic Contactor for Industrial Applications
2. Commercial and Residential Applications
Besides industrial applications, three-phase magnetic contactors are also used in commercial and residential electrical systems, such as:
Air Conditioning Systems: Magnetic contactors are used to control compressors and fans in large air conditioning systems, helping maintain a comfortable indoor environment.
Lighting Systems: In high-rise buildings and shopping malls, magnetic contactors are used to automatically control lighting systems, helping save energy and extend equipment service life.
Renewable Energy Systems: Three-phase magnetic contactors can also be integrated into solar and wind power systems to control and protect energy conversion equipment.
220V Three-Phase Magnetic Contactor for Office Applications
IV. Key Features of Three-Phase Magnetic Contactors
1. High Load Capacity
Three-phase magnetic contactors are designed to handle high electrical loads, with some models rated at 600A or higher.
This allows them to operate reliably in high-power electrical systems while reducing the risk of overloads and short circuits when used with suitable protective devices.
2. Safety Protection Design
Modern three-phase magnetic contactors are designed with protective features against dust, water, and mechanical impacts.
These features help ensure reliable operation in harsh environments and reduce electrical safety risks.
3. Compatible with Thermal Overload Relays
One of the key advantages of three-phase magnetic contactors is their ability to work with thermal overload relays to protect electrical systems against overloads, overcurrent, and overheating.
When the thermal overload relay detects an overload, it disconnects the contactor control circuit, causing the contactor to open. This helps protect connected equipment and prevent damage.
4. High Flexibility
Three-phase magnetic contactors can be easily combined with other automatic control devices, such as timers, remote controllers, and sensors.
This improves the efficiency and flexibility of electrical system control and management.
V. Advanced Functions
1. Automatic Control
One of the main advantages of three-phase magnetic contactors is their ability to operate automatically through remote control devices or automation systems.
This reduces manual operation, increases automation, and improves operating efficiency.
2. Electrical System Protection
Three-phase magnetic contactors are not only used for switching and control but can also work with protective devices to disconnect electrical circuits when faults are detected.
This function is especially useful in industrial electrical systems, where electrical faults can cause serious damage.
3. Energy Saving
Using three-phase magnetic contactors helps improve the operating efficiency of electrical equipment.
With accurate control and automation, electrical systems can operate more efficiently, reduce unnecessary energy consumption, and extend equipment service life.
220V Three-Phase Magnetic Contactor for Commercial Applications
How to Choose a Three-Phase Magnetic Contactor
There are many types of magnetic contactors available on the electrical equipment market.
To choose a suitable three-phase magnetic contactor, users should pay attention to the following technical specifications khởi động từ 3 pha phù hợp. Mọi người cần phải để ý đến những thông số cơ bản sau đây:
Rated Operating Voltage (Ue): Indicates the rated voltage at which the contactor is designed to operate.
Rated Impulse Withstand Voltage (Uimp): Indicates the impulse voltage that the contactor can withstand.
Coil Control Voltage: Check whether the contactor coil uses an AC or DC power supply and its rated voltage, such as 380V, 220V, 110V, 48V, or 24V.
Short-Circuit Current (Icu): The source describes this as the short-circuit current that the contactor contacts can withstand for 1.3 seconds when a short circuit occurs in the load.
Rated Current (In): Indicates the rated current of the contactor under normal operating conditions at its rated voltage.
Switching Frequency: Check how many switching operations the contactor can perform per hour, such as 1,500, 1,200, 600, 300, 182, 120, 100, or 30 operations per hour.
Service Life: After a long period of switching operations, the contacts and mechanical components may wear out and lose their original operating accuracy. The contactor should no longer be used when it cannot operate reliably.
VI. Conclusion
The 220V three-phase magnetic contactor from KAWASAN is an important electrical device commonly used in industrial, commercial, and residential electrical systems.
With its high load capacity, safety features, and practical functions, this device helps improve the operating efficiency and safety of electrical systems.
Additional information
Power
12A, 18A, 25A, 32A, 40A, 50A
3 reviews for Khởi Động Từ 3 Pha 220V KWC-3P-50A-40A/32A2-25A2-18A-12A
5 out of 5
Đức Anh–
Khởi động từ có độ hoàn thiện tốt, phần vỏ chắc chắn, thao tác lắp đặt thuận tiện. Giúp hệ thống điện trong xưởng hoạt động an toàn hơn.
5 out of 5
Văn Phúc–
Contactor đóng ngắt rất nhạy, hoạt động ổn định. Lắp cho tủ điều khiển máy bơm hơn 3 tháng vẫn chạy tốt.
5 out of 5
Thành Luân–
KWC-3P dùng cho mạch 3 pha khá ổn, đóng ngắt thiết bị nhanh và hoạt động ổn định
Đức Anh –
Khởi động từ có độ hoàn thiện tốt, phần vỏ chắc chắn, thao tác lắp đặt thuận tiện. Giúp hệ thống điện trong xưởng hoạt động an toàn hơn.
Văn Phúc –
Contactor đóng ngắt rất nhạy, hoạt động ổn định. Lắp cho tủ điều khiển máy bơm hơn 3 tháng vẫn chạy tốt.
Thành Luân –
KWC-3P dùng cho mạch 3 pha khá ổn, đóng ngắt thiết bị nhanh và hoạt động ổn định