Products
Recommended Products
HVX24-K
HVX 24/K Product Features
24 kV Medium Voltage Applications: Designed for 24 kV AC power distribution systems, suitable for medium voltage power distribution applications such as substations, industrial plants, and infrastructure.
Vacuum Arc Extinguishing Technology: Utilizes a vacuum arc extinguishing chamber, featuring rapid dielectric recovery, stable arc extinguishing performance, and low contact wear.
Reliable Short-Circuit Breaking Capacity: Capable of quickly interrupting short-circuit and fault currents; the specific rated short-circuit breaking current needs to be determined based on the HVX 24/K nameplate model.
High Insulation Performance: Designed to meet the insulation requirements of 24 kV systems, maintaining reliable insulation performance under normal operation and specified overvoltage conditions.
Long Mechanical Life: The mature spring energy storage operating mechanism combined with vacuum arc extinguishing technology can meet the long-term operation and frequent opening and closing requirements of medium voltage power distribution systems.
Low Maintenance Design: The vacuum arc extinguishing chamber adopts a sealed structure, eliminating the need for replenishing oil or gas arc extinguishing media, which helps reduce life-cycle maintenance workload.
Stable operating mechanism: Enables rapid and reliable opening and closing, and can be configured with electric energy storage, shunt trip, and undervoltage trip functions.
Compact structure: The overall structure is optimized for medium-voltage switchgear installation, facilitating control of cabinet size and improving space utilization.
Flexible accessory configuration: Auxiliary contacts, closing coils, tripping coils, electric energy storage mechanisms, and phase-locking accessories can be configured according to project requirements.
Comprehensive safety interlocking: Can form mechanical and electrical interlocks with the switchgear's grounding switch, cabinet doors, and related operating mechanisms, improving operational safety.
Convenient installation and maintenance: The modular structure facilitates equipment inspection, maintenance, and accessory replacement, reducing power outage maintenance time.
Wide application range: Suitable for the control and protection of feeders, transformers, busbars, motors, and industrial medium-voltage power distribution circuits.
HVX 24/K Key Selling Points: Reliable vacuum breaking; 24 kV insulation class; High short-circuit breaking capacity; Long service life; Low maintenance; Compact design; Flexible configuration; High operational reliability.
HVX40.5-K
HVX 40.5/K Product Characteristics
40.5 kV Voltage Rating: Suitable for 40.5 kV AC power distribution systems, applicable to substations, industrial enterprises, energy and infrastructure projects.
Vacuum Arc Extinguishing Technology: Employs a vacuum arc-extinguishing chamber for current interruption, featuring rapid arc extinguishing, strong dielectric recovery capability, and minimal contact wear.
High Short-Circuit Breaking Capacity: Reliably interrupts short-circuit fault currents in the system, improving the safety and reliability of the power distribution network; actual breaking parameters should be based on the specific model nameplate or technical datasheet.
High Insulation Level: Designed for the insulation requirements of 40.5 kV systems, it can withstand specified power frequency and lightning impulse voltages, suitable for higher voltage level power distribution applications.
Long Mechanical Life: Optimized operating mechanism combined with vacuum arc-extinguishing technology meets the requirements for long-term operation and repeated opening and closing operations.
Low Maintenance Design: The vacuum arc-extinguishing chamber adopts a sealed structure, eliminating the need for replenishing oil, SF₆, or other arc-extinguishing media, thus reducing daily maintenance work.
Reliable energy storage operating mechanism: Typically employs a spring energy storage mechanism, which can be configured with electric energy storage to achieve stable and rapid closing and opening operations.
Compact structural design: While meeting the requirements of 40.5 kV insulation distance and breaking capacity, the equipment structure is optimized for easy integration with medium-voltage switchgear.
Comprehensive safety interlocking: Can form mechanical and electrical interlocks with switchgear trolleys, grounding switches, cabinet doors, etc., reducing the risk of misoperation.
Flexible accessory configuration: Can be configured with shunt trip units, undervoltage trip units, closing coils, auxiliary contacts, electric energy storage mechanisms, and interlocking devices according to project requirements.
High operational reliability: Suitable for power systems and industrial power distribution applications with high requirements for power supply continuity and equipment reliability.
Wide application range: Can be used for the control and protection of circuits in transformers, feeders, busbars, power generation systems, and large industrial loads.
HVX 40.5/K Key Selling Points:
40.5 kV high insulation level
· Vacuum arc extinguishing
· High short-circuit breaking capacity
· Long service life
· Low maintenance
· Reliable operating mechanism
· Comprehensive safety interlocks
· Flexible configuration
MT
Schneider Electric MasterPact MTZ Circuit Breaker Product Features
1. High Current, High Breaking Capacity
The MasterPact MTZ covers multiple frame classes to meet the needs of large industrial and commercial power distribution systems. The IEC series offers a total rated current of approximately 630A–6300A and provides various breaking classes, suitable for critical circuits such as transformer incoming lines, low-voltage main incoming lines, and bus tie lines.
2. MicroLogic X Intelligent Control Unit
Utilizing the advanced MicroLogic X control unit, protection, measurement, diagnostics, and maintenance functions are integrated into a single platform. Depending on the configuration, it can provide protection against long-delay, short-delay, instantaneous, and ground faults, and its functionality can be expanded through digital modules.
3. High-Precision Energy Measurement
Built-in high-precision energy metering function, some configurations support Class 1 active power and energy measurement, enabling real-time monitoring of equipment operation and energy usage, which is beneficial for energy management and fault analysis.
4. Digitalization and Intelligent Communication
MTZ is a key product in Schneider Electric's digital low-voltage power distribution system, enabling intelligent connectivity, remote monitoring, and wireless maintenance. It can be integrated with Schneider Electric's EcoStruxure Power system. It supports wireless alarm monitoring, parameter viewing, and maintenance operations via smartphone.
5. Digital Module Expansion
Users can add digital modules to expand the functionality of the MicroLogic X control unit according to actual project needs, without simply relying on hardware replacement to add advanced functions. This makes future upgrades and function customization more flexible.
6. Fixed and Drawout Structures
It is available in both **fixed** and **drawout** structures, with 3P and 4P configurations, facilitating selection for different low-voltage switchgear solutions. The drawout structure is particularly suitable for applications requiring rapid maintenance and replacement, as well as improved power supply continuity.
7. Strong Reliability and Environmental Adaptability
The product is designed for durability in industrial environments, adapting to complex operating environments such as temperature, humidity, vibration, altitude, and electromagnetic interference. Schneider Electric's data indicates a typical operating temperature range of -25°C to +70°C.
8. A wide range of accessory options: It can be configured with various accessories such as shunt trip units, closing coils, auxiliary contacts, electric energy storage mechanisms, and communication modules, facilitating remote opening and closing, status monitoring, and automated control.
MTZ
High breaking capacity: Suitable for large-capacity low-voltage power distribution systems, capable of protecting main incoming lines, bus couplers, and important feeders.
MicroLogic X Intelligent Trip Unit: Integrates protection, measurement, diagnostics, and communication functions, providing protection against overload, short circuit, transient, and ground faults.
High-precision power measurement: Supports monitoring of key electrical parameters such as current, voltage, power, energy, and frequency, providing data for energy management and operational analysis.
Strong digital capabilities: Supports digital module expansion, allowing for the addition of protection, measurement, and diagnostic functions according to project needs.
Intelligent communication and remote monitoring: Can be integrated into the Schneider EcoStruxure Power architecture for digital management of equipment status, alarms, and operational data.
Wireless connectivity: MicroLogic X supports parameter viewing, maintenance, and diagnostics via NFC, Bluetooth, etc., improving on-site maintenance efficiency.
Fixed/Drawout design: Offers fixed and drawout installation options; the drawout design facilitates maintenance and quick replacement.
Modular accessory design: Configurable with electric operating mechanisms, shunt trips, undervoltage trips, auxiliary contacts, and communication accessories, facilitating the formation of automated power distribution solutions.
High reliability and ease of maintenance: Designed for critical low-voltage power distribution applications, it utilizes operational status and diagnostic information to assist in preventative maintenance, reducing unplanned downtime.
Wide application range: Suitable for low-voltage main incoming lines, bus couplers, generator protection, high-capacity feeders, and critical power distribution systems with high requirements for power supply continuity.
PSTX
Comprehensive Motor Protection Functions
Ensuring Motor Reliability
Improving Installation Efficiency
Enhancing Equipment Productivity
PSTX integrates comprehensive motor protection functions to handle abnormal load and power grid conditions. PT-100, ground fault protection, overvoltage/undervoltage protection, and other functions ensure your motors are safer. PSTX offers three current limiting modes: standard, dual current limiting, and current ramp. This helps you fully control motor starting, ensuring normal motor operation even in poor power grid environments.
Built-in Bypass, Saving Time and Reducing Energy
PSTX activates the built-in bypass when the motor is running at full speed. This reduces energy consumption by minimizing soft starter heat. PSTX's built-in bypass is rigorously verified by ABB, helping you save installation time and reduce control cabinet size.
Perfect Pump Control Functions
Unleash greater potential and improve your equipment's productivity. PSTX features many special functions that enhance productivity, such as torque control. This is a more efficient way to control pump start-up and shutdown. The water pump cleaning function cleans the pipes by reversing the flow of water from the pump, ensuring the water pump system's uptime.
SION 3AE8
Siemens SION 3AE8 Product Features:
Vacuum Interruption Technology: Employs a vacuum interrupter for current interruption, featuring stable arc-extinguishing performance, rapid dielectric recovery, and low contact wear.
Reliable Short-Circuit Breaking Performance: Quickly interrupts short-circuit fault currents in medium-voltage systems, providing reliable protection for power distribution equipment and loads; specific breaking capacity depends on the 3AE8 model configuration.
Long Mechanical Life: The operating mechanism is designed for long-term operation and repeated opening and closing, meeting the durability requirements of industrial and power distribution systems.
Low Maintenance Design: The vacuum interrupter employs a sealed structure, eliminating the need for oil or gaseous arc-extinguishing media replenishment, reducing daily maintenance workload and lifecycle costs.
Spring Energy Storage Operating Mechanism: Utilizes a mature energy storage operating mechanism, which can be configured with electric energy storage for rapid and stable opening and closing operations.
Modular Structure: The circuit breaker body, operating mechanism, and secondary control accessories adopt a modular design concept, facilitating configuration, inspection, and maintenance.
Fixed/Removable Installation Options: Installation methods can be tailored to the specific switchgear and project requirements, facilitating switchgear system integration.
Comprehensive Auxiliary Accessories: Shunt trip units, closing coils, undervoltage trip units, auxiliary switches, anti-pumping devices, and phase-locking accessories can be configured according to specific models.
Safety Interlocking Design: In removable switchgear, mechanical and electrical interlocks can be established with the chassis, grounding switch, and cabinet doors to enhance operational safety.
Environmentally Friendly: Utilizing vacuum as the arc-extinguishing medium, it does not rely on SF₆ for arc extinguishing, reducing the environmental impact of the circuit breaker's arc-extinguishing system.
High Operational Reliability: Suitable for medium-voltage power distribution systems requiring long-term continuous operation, meeting the needs of industrial, power, and infrastructure sectors.
Wide Application Range: Can be used for the control and protection of feeders, transformers, motors, busbars, and industrial medium-voltage power distribution circuits.
SION 3AE8 Key Selling Points:
Vacuum arc extinguishing, high breaking performance, long mechanical life, low maintenance, spring energy storage mechanism, modular design, safety interlock, high reliability.
Typical Applications: Suitable for medium-voltage switchgear, substations, industrial power distribution, power plants, mines, petrochemicals, infrastructure, transformer protection, and large motor control.
V20 series
Siemens V20 Product Features
Compact Design: Its small size effectively saves control cabinet installation space, making it suitable for applications with limited space and equipment requirements.
Economical and Practical: Designed for basic variable frequency speed control applications, it meets conventional motor control needs while minimizing equipment purchase and operating costs.
Simple Installation and Commissioning: Intuitive parameter settings and support for quick commissioning reduce installation, parameter configuration, and commissioning time.
Wide Power Range: Offers various power and voltage levels to meet the speed control needs of different small and medium-sized motors; specific parameters depend on the model configuration.
Energy-Saving Control Function: Reduces unnecessary energy consumption by adjusting motor speed according to actual load requirements, especially suitable for fan and pump applications.
Built-in PID Control: Supports closed-loop process control, automatically adjusting motor speed based on feedback signals such as pressure, flow, and temperature.
Multiple Motor Control Functions: Supports common V/f control methods and related energy-saving control functions, meeting the speed regulation requirements of general industrial equipment.
Built-in Communication Capabilities: Supports communication methods such as USS and Modbus RTU, facilitating connection with PLCs, HMIs, and other automation equipment.
Comprehensive Protection Functions: Equipped with overcurrent, overvoltage, undervoltage, overtemperature, and motor overload protection functions, improving equipment operational reliability.
Flexible I/O Configuration: Provides digital and analog inputs/outputs, allowing connection to peripheral control devices such as buttons, potentiometers, and sensors.
Easy Maintenance: Simple structure and convenient parameter management, enabling fault diagnosis and operational status monitoring, reducing the difficulty of daily maintenance.
Wide Application Range: Suitable for fans, pumps, conveyors, compressors, mixing equipment, packaging machinery, textile machinery, and general industrial automation equipment.
V20 Core Product Selling Points: Compact Design · Economical and Practical · Quick Commissioning · PID Control · Energy-Saving Operation · Modbus Communication · Comprehensive Protection · Easy Maintenance
VD4-12
Normal Operating Conditions
Ambient Air Temperature
• Maximum +40℃
• Average over 24 hours not exceeding +35℃
• Minimum (Indoor) -5℃
Note: -25℃ operating temperature option available.
Humidity
• Average relative humidity over 24 hours not exceeding 95%
• Average water vapor pressure over 24 hours not exceeding 2.2 kPa
• Average relative humidity over 1 month not exceeding 90%
• Average water vapor pressure over 1 month not exceeding 1.8 kPa
Altitude ≤1000 m.
Seismic Performance
Seismic intensity not exceeding magnitude 8.
Adaptability to Humid Tropical Climates
VD4 circuit breakers are designed/manufactured in strict accordance with standards and can be used in humid, hot, and high-salinity climates. All critical components are specially treated to withstand the corrosion of Class C ambient environments specified in EN 12500 class 5. The galvanizing process is carried out according to UNI ISO 2081 standard, classification number Fe/Zn 12, with a thickness of 12 μm, and color chromate passivation is performed according to UNI ISO 4520 standard.
Altitude: The insulating properties of air decrease with increasing altitude; therefore, the impact of this phenomenon on the external insulation of the switch must be considered when using it at high altitudes. The insulation inside the arc-extinguishing chamber is not affected, as its insulation capacity is guaranteed by vacuum.
If the switch is installed in an area above 1000 m altitude, the effect of altitude should be considered during the design phase of the insulation components.
In this case, a correction factor must be considered, which can be found in the chart on the right, based on the IEC 62271-1 standard. An example calculation based on the above correction principle is given below. Example:
• Installation Altitude:
• Rated Voltage:
• Power Frequency Withstand Voltage:
• Lightning Impulse Withstand Voltage:
2000 m
1 2 kV
4 2 kVrms
75 kVp
• Ka coefficient, found from the chart: Ka=1.13
From the above parameters, the components must be able to withstand (test conditions at zero altitude):
• Power Frequency Withstand Voltage: 42 x 1.13 = 47.5 kVrms
• Lightning Impulse Withstand Voltage: 75 x 1.13 = 84.7 kVp
The above calculations show that circuit breakers used in high-altitude areas must be able to withstand higher insulation level tests at zero altitude. For specific circuit breaker selection, please contact the manufacturer.
VD4-17.5
Normal Operating Conditions
Ambient Air Temperature
• Maximum +40℃
• Average over 24 hours not exceeding +35℃
• Minimum (Indoor) -5℃
Note: -25℃ operating temperature option available.
Humidity
• Average relative humidity over 24 hours not exceeding 95%
• Average water vapor pressure over 24 hours not exceeding 2.2 kPa
• Average relative humidity over 1 month not exceeding 90%
• Average water vapor pressure over 1 month not exceeding 1.8 kPa
Altitude ≤1000 m.
Seismic Performance
Seismic intensity not exceeding magnitude 8.
Adaptability to Humid Tropical Climates
VD4 circuit breakers are designed/manufactured in strict accordance with standards and can be used in humid, hot, and high-salinity climates. All critical components are specially treated to withstand the corrosion of Class C ambient environments specified in EN 12500 class 5. The galvanizing process is carried out according to UNI ISO 2081 standard, classification number Fe/Zn 12, with a thickness of 12 μm, and color chromate passivation is performed according to UNI ISO 4520 standard.
Altitude: The insulating properties of air decrease with increasing altitude; therefore, the impact of this phenomenon on the external insulation of the switch must be considered when using it at high altitudes. The insulation inside the arc-extinguishing chamber is not affected, as its insulation capacity is guaranteed by vacuum.
If the switch is installed in an area above 1000 m altitude, the effect of altitude should be considered during the design phase of the insulation components.
In this case, a correction factor must be considered, which can be found in the chart on the right, based on the IEC 62271-1 standard. An example calculation based on the above correction principle is given below. Example:
• Installation Altitude:
• Rated Voltage:
• Power Frequency Withstand Voltage:
• Lightning Impulse Withstand Voltage:
2000 m
1 2 kV
4 2 kVrms
75 kVp
• Ka coefficient, found from the chart: Ka=1.13
From the above parameters, the components must be able to withstand (test conditions at zero altitude):
• Power Frequency Withstand Voltage: 42 x 1.13 = 47.5 kVrms
• Lightning Impulse Withstand Voltage: 75 x 1.13 = 84.7 kVp
The above calculations show that circuit breakers used in high-altitude areas must be able to withstand higher insulation level tests at zero altitude. For specific circuit breaker selection, please contact the manufacturer.
VD4-24
The VD4 vacuum circuit breaker is suitable for indoor switching systems with air insulation. Under normal operating conditions and within the circuit breaker's technical parameters, the VD4 vacuum circuit breaker can meet various operational requirements of the power grid under normal or fault conditions, including closing and interrupting short-circuit currents.
Vacuum circuit breakers exhibit excellent performance in applications requiring frequent operation and/or short-circuit current interruption. The VD4 vacuum circuit breaker fully meets the requirements of automatic reclosing and possesses extremely high operational reliability and service life.
The VD4 vacuum circuit breaker can be installed in switchgear in a fixed, withdrawable, or frame-mounted manner.
VD4-40.5
The 40.5 kV VD4 vacuum circuit breaker is suitable for indoor switchgear systems with air insulation. Under normal operating conditions and within the circuit breaker's technical parameters, the VD4 vacuum circuit breaker can meet various operational requirements of the power grid under normal or fault conditions, including closing and interrupting short-circuit currents.
The vacuum circuit breaker exhibits excellent performance in applications requiring frequent operation and/or short-circuit current interruption. The VD4 vacuum circuit breaker meets the requirements for automatic reclosing and possesses extremely high operational reliability and service life.
The VD4 vacuum circuit breaker is available in both withdrawable and fixed installation types. Its basic structure is shown in Figures 3/1 and 3/2, and Figures 3/7 and 3/8.
1.2 Standards and Specifications
The manufacture of VD4 vacuum circuit breakers conforms to standards and specifications consistent with relevant publications of GB, IEC, and DIN VDE:
• GB/T 11022, IEC 62271-1, and DIN VDE 0670 part 1000, "Common Technical Conditions for Standards of High Voltage Switchgear and Controlgear"
• GB/T 1984 and IEC 62271-100 "High Voltage AC Circuit Breakers"
Meeting E2, C2, M2 (10000 cycles) ratings
VD4-AF
ABB VD4/AF Product Performance
1. High-Performance Vacuum Breaking Technology
Utilizing the vacuum arc-extinguishing principle, it can quickly extinguish the arc, providing excellent insulation recovery and breaking performance while reducing contact burn-off.
2. Reliable Short-Circuit Current Breaking Capacity
VD4/AF can be used for switching normal load currents in medium-voltage power distribution systems and can break fault currents according to the rated parameters of specific models, providing protection for lines, transformers, and other medium-voltage equipment.
3. High Mechanical Durability
The operating mechanism is designed for the long-term operation requirements of medium-voltage switchgear, meeting the requirements of frequent operation and long-term use. Specific mechanical life ratings and number of operations should refer to the technical datasheet for the corresponding VD4/AF model.
4. Stable Electrical Life
The contacts inside the vacuum interrupter operate in a vacuum environment, resulting in relatively less arc erosion of the contacts, which helps maintain stable breaking performance over a long period.
5. Fast and Stable Closing and Opening Performance: The circuit breaker operating mechanism can quickly complete closing and opening actions, and cooperates with the relay protection system to promptly disconnect faulty circuits after detecting short circuits or other faults.
6. Reliable Operating Mechanism: Utilizing an energy storage mechanical operating mechanism, it can be equipped with energy storage motors, closing coils, opening coils, auxiliary contacts, and other accessories, supporting both on-site and remote electrical operation.
7. Comprehensive Control and Protection Coordination Capabilities: It can cooperate with relay protection, measurement, and automation control systems to achieve functions such as fault protection, remote closing and opening, status feedback, and electrical interlocking.
8. Low Maintenance Workload: The vacuum interrupter uses a sealed design, eliminating the need for replenishing the arc-extinguishing medium. Under normal operating conditions, maintenance is mainly concentrated on the operating mechanism, transmission system, and auxiliary control circuits.
9. Applicable to Medium-Voltage Switchgear: The VD4/AF can be used in medium-voltage switchgear of corresponding designs, suitable for various circuits such as incoming lines, feeders, transformers, and industrial power distribution.
10. Wide Range of Typical Applications: Commonly used in medium-voltage power distribution systems in power distribution, substations, industrial production lines, steel, cement, mining, petrochemical, and infrastructure industries.
VD4/AF Core Performance Summary:
Vacuum arc extinguishing + Reliable short-circuit breaking + Long mechanical life + Stable operating mechanism + Low maintenance requirements + Compatibility with automated control