AIR CIRCUIT BREAKER
Models: MTW1-2000, MTW1-3200, MTW1-4000, MTW1-6300, MTW1-7500
The MTW1 series intelligent circuit breakers are meticulously engineered for use in distribution networks with an AC frequency of 50Hz and a rated voltage of 400V and 690V. With a robust rated current range from 400Ato7500A, these breakers are designed to efficiently distribute electrical energy while safeguarding circuits and power equipment from the detrimental effects of overload, under-voltage, short circuit and single-phase earth faults, among other issues. Equipped with advanced intelligent protective functionalities and accurate selective protection, these breakers significantly boost power supply reliability and prevent
unnecessary power outages.Featuring an impressive impulse withstand voltage of8000V at up to 2000 meters, adaptable according to varying altitude standards, with a peak capability not exceeding 12000V.
This cutting-edge product is compliant with the rigorous standards of GB14048.2 , focusing on low-voltage switchgear and control equipment; it adheres to the low-voltage circuit breaker criteria under IEC60947-2 , which specifies low-voltage switchgear and controlling equipment's second part: low-voltage circuit breakers.
-Style: Available in the versatile Drawer style,
-Style: and the practical Fixed style.
-Model Meaning Details:
Pole number: 4P indicates a 4 Pole configuration, while 3P signifies a 3 Pole setup.
Rated Current Specifications
Innovative Design Code
Air Circuit Breaker Specifics
Distinguished Enterprise Code

-Control Part: Experience next-level precision and reliability with our expertly engineered control components. This segment ensures optimal performance and seamless operation, providing you with unmatched control and peace of mind. Meticulously crafted to deliver excellence, this part guarantees sustained high performance and durability, cementing its place as a cornerstone in cutting-edge technology.
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 |
|
|
|
PREMIUM COPPER BAR
Crafted from Pure and Lustrous Red Copperwith a Sophisticated and Elegant Silver Plated Finish
Exhibiting Remarkable Heat Dissipation Properties to Ensure Superior Performance
Providing Outstanding Corrosion Resistance
Enhanced Widening and Robust Thickening in the Dimensions of the Copper Bar
Meticulously Designed to Comply with Industry Standards
ADVANCED CONDUCTIVE SYSTEM
The Precise and Strategic Number of Contact Pieces is Smartly Determined by Current Flow
The Moving Contact Incorporates Copper with a Silver Plated Material for Unmatched Excellence
The Contact Surface Boasts Silver Dots, Ensuring Exceptional Conductivity
-Refined Internal Components
Featuring Exquisite Conductive Parts:
-Copper Bars, Precision Contacts
Sophisticated Secondary Control Part Featuring:
-Wiring Terminals, Mechanisms, Controllers, Motors, Coils, and Current Transformers to Maximize Efficiency
Cutting-Edge Arc Extinguishing Section:
-Interrupter for Optimal Safety and Reliability
-Fixed and Innovative Drawer Type Construction for Convenience
Installation Instructions
-Installed inside the panel
Fixed Type Installation:
The circuit breaker is securely fixed on the distribution cabinet, or installation board, ensuring a steadfast setup that cannot be moved.
This installation type is perfect for environments where minimal replacement or maintenance is anticipated.
It offers the advantage of straightforward setup, and ensures a cost-effective and hassle-free implementation.
Drawout Type Installation:
The circuit breaker is expertly mounted on a withdrawable frame, providing convenient access for maintenance,as well as testing,and replacementtasks with ease.
This installation is ideal for environments that demand frequent operation or routine maintenancetasks.
While the setup is more intricate and incurs higher initial costs, it offers superior operational flexibility and efficiency.
Plug-In Type Installation:
This configuration connects the circuit breaker to the busbar using a plug-in connection for quick and effortless installation or replacement.
It's specifically designed for scenarios that require swift exchanges and minimal downtime.
-Secondary Wiring Method
1 and 2: Integrate the intelligent controller effectively to enhance functionality.
27 and 28:Link to the undervoltage coil for optimal performance.
29 and 30: Connect to the shunt coil to ensure efficient operation.
31 and 32:Engage closed coils to maintain system integrity.
34 and 35: Interface seamlessly with the energy storage motor for continuous power supply.
Mechanical operation test: A meticulous examination to guarantee flawless functionality and operational excellence.
Ensure the circuit breaker's mechanical operation is executed with precision, maintaining its flexibility and reliability.
Conduct a meticulous evaluation of the operation functions, including closing, openingand energy storage, to ensure an uninterrupted performance.
Electrical performance testing: Comprehensive assessments to guarantee exceptional electrical integrity.
Insulation resistance test: Utilize a megohmmeter for a detailed measurement of insulation resistance in both main and auxiliary circuits, ensuring it meets or exceeds industry benchmarks (usually ≥ 1M Ω).
Power frequency withstand voltage test: Apply rated power frequency voltage (such as 2500V/1min) to main and auxiliary circuits to affirm outstanding insulation performance.
Contact resistance test: Precisely measure the contact resistance of the main contact to ensure it is below the defined stringent value (typically at a micro ohm level).
Protection function test: A crucial evaluation to uphold safety and reliability.
Examine the action values and timing of critical protection functions, such as overload, short circuit, and ground fault, to confirm a swift and precise response.
Validate the settings andfunctionality of the intelligent release device, ensuring peak performance and unparalleled reliability.
Outer packaging: Built to Withstand the Journey
Utilizing robust and meticulously crafted wooden boxes, we ensure exceptional mechanical strength and unparalleled durability.
These expertly designed wooden crates are ideal for accommodating large circuit breakers, perfectly suited for the rigorous demands of international shipping.
Inner packaging: A Shield of Protection
The circuit breaker is carefully enveloped with premium protective materials, such as, high-density foam pads,, resilient bubble film, or the gentle cushioning of pearl cotton, effectively safeguarding against vibrations and potential impacts, ensuring the integrity of the product remains intact.
For larger circuit breakers, we employ an innovative layered design. This approach allows the packaging box to contain additional accessories (such as easy-to-reference manuals, essential tools, and spare parts), strategically positioned on the upper layer to optimize space and maintain organization.
Our state-of-the-art production line utilizes cutting-edge technology and skilled craftsmanship to deliver superior products.
Mingtuo Electric With an impressive foothold in the domestic market, Mingtuo Electric is expanding its horizons in the global landscape. Our cutting-edge and innovative products play an essential role across construction, industry, and energy sectors, gaining the trust and admiration of numerous prestigious engineering projects.
The company adheres to the unwavering principle of customer first, quality first, service first, reputation first, while passionately embracing a culture of constant innovation and development. Our company is proud to possess unmatched technical prowess, state-of-the-art production technology, and extensive experience in research and development. Renowned for our professionalism and technological excellence, we are equipped with the most advanced production, testing, and inspection equipment available throughout China.
FAQ
Q: What is the product voltage/current range? What's the breaking ability?
A: For detailed and comprehensive information, please don't hesitate to contact our dedicated customer service team.
Q: What is the MOQ? Do you support sample ordering?
A: Certainly! The minimum order quantity is 1 set, and we are delighted to accommodate sample ordering for your convenience.
Q: How long is the warranty period? How to apply for warranty?
A: Enjoy complete peace of mind with our product warranty that spans from one to two glorious years. Simply reach out to our responsive customer service to apply for warranty assistance.
Q: Do you have CE, RoHS, UL and other certifications? Can you provide a certificate?
A: Absolutely, we are proudly certified with CE and RoHS standards, and are eager to provide certification upon your request.
Q: Does the price include tax/shipping?
A: Please be informed that the listed price does not include shipping and tax costs.
Q: What famous clients or project cases have you worked with?
A: We have proudly collaborated with prominent clients such as the State Grid of China, Chint Group, and Xiaomi Group, showcasing our expertise and reliability.