AIR CIRCUIT BREAKER
MTW1-2000, MTW1-3200, MTW1-4000, MTW1-6300, MTW1-7500
The MTW1 series of intelligent breakers are meticulously engineered for distribution networks operating at an AC frequency of 50Hz, making them ideal for systems with a rated voltage of 400V and 690V, providing a robust rated current range of 400A~7500A. It excels at distributing electrical energy while offering superior protection for circuits and power equipment against potential threats such as overload, under-voltage, short circuit and single-phase earth faults. Integrated with cutting-edge intelligent protection features and precise selective coordination, this breaker dramatically enhances the reliability of your power distribution, effectively reducing the likelihood of
unexpected power interruptions.This breaker is fortified with a high impulse withstand voltage of8000V at an altitude of 2000 meters, capable of adapting to various altitudes with a peak capacity reaching 12000V).
This product is crafted to meet the stringent requirements of GB14048.2 for low-voltage switchgear and control equipment, specifically tailored for low-voltage circuit breakers, and it equally complies with IEC60947-2 for low-voltage switchgear and controlling equipment Part 2: Low-voltage circuit breakers.
-Style: Drawer style
-Style: Fixed style
-Model Meaning
Pole number (4P denotes 4 Poles, 3P denotes 3 Poles)
Rated Current
Design code
Air Circuit Breaker
Enterprise code
-Control part: Experience unmatched precision and efficiency with our advanced control system, meticulously designed to ensure seamless operation and optimal performance at all times. Our state-of-the-art technology guarantees superior reliability and consistent results, making it the ideal choice for those who demand excellence and uncompromising quality in every aspect of their operations.
Shunt
release |
Ue(v) |
AC 220,380/DC110,220 |
Energy-releasing (ON) electromagnet |
Us(v) |
AC 220,380/DC110,220 |
Under-voltage
release |
Ue(v) |
AC 220,380 |
Intelligent type electronic release |
Us(v) |
AC 220,380/DC110,220 |
Motorized operating
mechanism |
Us(v) |
AC 220,380/DC110,220 |
|
|
|
COPPER BAR: A showcase of unparalleled craftsmanship with meticulous attention to quality and precision.
Crafted from premium red copper, each piece exudes excellence and refined strength, ensuring outstanding performance.Elegantly silver: A sleek and polished finish that not only enhances appearance but also adds to the component's longevity. Plated material for enhanced durability, providing robust protection and reliability in all operating conditions.
Exceptional heat management: Ensures consistent, efficient thermal performance across applications. Dissipation engineered for maximum thermal efficiency, maintaining reliable operation under varying loads. Performance for optimal efficiency: Ensure your systems run smoothly and effectively with our expertly designed solutions.
High corrosion resistance: Built to withstand the harshest environments, guaranteeing a long service life.
Innovative widening: Reimagining traditional designs for enhanced capacity and strength. And Thickening techniques applied to ensure unrivaled structural integrity and performance. Applied to copper bar size for superior performance, pushing the boundaries of conventional engineering.
Meticulously compliant with industry standards, reflecting our commitment to excellence and reliability.
CONDUCTIVE SYSTEM: A marvel of engineering designed for optimal electrical performance.
The Precise number of contact pieces, carefully calculated to match the current load, ensuring reliability. Is expertly determined by the current load, offering unmatched precision and adaptability.
The moving contact is crafted from copper, expertly plated with lustrous silver for a perfect blend of style and function. Copper plated with lustrous silver: Experience the next level of conductivity and performance. Material crafted for excellence, providing seamless operation and longevity.
The moving contact is engineered from precision silver Dots, ensuring excellent conductivity and enduring efficiency in every application. -
Internal components designed for peak performance and effortless operation.Conductive parts include: A blend of copper bars and precision contacts for superior electrical efficiency.
Conductive parts include:
-Copper bars, precision contacts that meet the highest standards of quality and reliability.
Secondary control part highlights: Offering sophisticated solutions with wiring terminals and advanced mechanisms.
-Wiring terminals, advanced mechanisms, intelligent controllers, robust motors, high-quality coils, and current Transformer: Ensuring seamless integration and superior performance, fostering innovation in every component.
State-of-the-art Arc extinguishing section: Leading the way in safety and reliability with cutting-edge technology.
-Interrupter: Designed for maximum efficiency, ensuring superior arc control and protection.
-Available in both fixed and drawer type construction for flexible application, meeting diverse operational needs seamlessly.
Installation Instructions
-Installed inside the panel
Fixed Type Installation:
The circuit breaker is securely mounted on the distribution cabinet or installation board and is immovable once installed.
Ideal for scenarios that do not require frequent switching or ongoing maintenance.
Enjoy effortless installation and budget-friendly setup.
Drawout Type Installation:
The circuit breaker is affixed on a withdrawable frame, allowing for effortless maintenance, testing, and replacement of components.
Perfect for environments that require regular operation or servicing.
Installation is intricate and incurs higher costs, but it provides enhanced adaptability.
Plug-in Type Installation:
The circuit breaker connects seamlessly to the busbar via a plug-in mechanism, ensuring rapid installation and swift replacement.
This method is perfect for conditions that demand quick replacement.
-Secondary Wiring Method
1 and 2: Connect the intelligent controller seamlessly
27 and 28:Link the undervoltage coil efficiently
29 and 30: Securely attach the shunt coil
31 and 32:Anchor the closed coils firmly
34 and 35: Connect the energy storage motor reliably
Mechanical operation test:
Thoroughly evaluate the mechanical operations of the circuit breaker to ensure its performance is flexible and reliable.
Conduct comprehensive tests on its operational capabilities, including functions like closing, opening, and energy storage.
Electrical performance testing:
Perform an insulation resistance test using a state-of-the-art megohmmeter to assess the insulation resistance of both the main and auxiliary circuits, ensuring compliance with standards (typically ≥ 1M Ω).
Execute a power frequency withstand voltage test by applying the rated power frequency voltage (such as 2500V/1min) to both main and auxiliary circuits to verify insulation performance integrity.
Conduct a meticulous contact resistance test to measure the resistance of the main contact, ensuring it remains within the specified limits (usually at the micro ohm level).
Protection function test:
Assess the action values and response times of protection functions like overload, short circuit, and ground fault.
Confirm the settings andefficacy of the sophisticated intelligent release device.
Outer packaging:
To ensure unparalleled protection and strength for our products, we utilize robust and durable wooden boxes These wooden boxes are expertly crafted to provide exceptional mechanical strength, ensuring your cherished investment remains safeguarded throughout its journey.
Our wooden crates are ideally suited for accommodating large circuit breakers or enduring the rigors of international transportation. This ensures that your products arrive at their destination in pristine, untouched condition.
Inner packaging:
Maximizing protection for each circuit breaker is our top priority. We meticulously wrap each unit with high-quality buffer materials like foam pad, bubble film or pearl cotton These materials are selected to effectively mitigate any vibration or collision, preserving the product's integrity throughout its transportation.
For larger circuit breakers, our sophisticated packaging solution features a layered design. This design allows crucial accessories, such as manuals, tools, and spare partsto be conveniently and securely organized on the upper layer, ensuring easy access and perfect organization.
Our production line
Mingtuo Electric Zhejiang Mingtuo Electric Technology Co., Ltd. stands as a beacon of excellence in the domestic arena and is rapidly expanding its influence across international markets. Our diverse product lineup is tailored for key industries such as construction, industrial applications, and energy solutions. Our commitment to quality has earned us the trust of numerous prestigious engineering projects, reinforcing our reputation for delivering exceptional value and reliability to clients worldwide.
The company adheres to the unwavering principle ofcustomer first, quality first, service first, reputation firstand is relentless in its pursuit of innovation and development. The company has exceptional technical strength, cutting-edge production technology, and extensive industry experience in research and development. Renowned for its professionalism and technological leadership, the company boasts a complete set of the most advanced production, testing, and inspection equipment available in China.
FAQ
Q: What is the product voltage/current range? What's the breaking ability?
A: For detailed information on product specifications and breaking capacity, please reach out to our dedicated customer service team who are eager to provide you with comprehensive insights.
Q: What is the MOQ? Do you support sample ordering?
A: We are proud to offer a remarkably low minimum order quantity of just one set, and we enthusiastically support sample ordering to cater to your specific needs and preferences.
Q: How long is the warranty period? How to apply for warranty?
A: Our products come with a robust warranty period ranging from one to two years, ensuring your peace of mind. Applying for warranty is a seamless process through our dedicated customer service team.
Q: Do you have CE, RoHS, UL and other certifications? Can you provide a certificate?
A: We are pleased to confirm that we hold CE and RoHS certifications, and we can readily provide these certificates upon request, assuring you of our compliance with international standards.
Q: Does the price include tax/shipping?
A: Please note that the listed price does not include shipping or tax, ensuring transparency in our pricing structure.
Q: What famous clients or project cases have you worked with?
A: We have had the privilege to collaborate with esteemed clients such as the State Grid of China, Chint Group, and Xiaomi Group, showcasing our capability and reliability in supporting high-profile projects.
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