AIR CIRCUIT BREAKER
MTW1-2000, MTW1-3200, MTW1-4000, MTW1-6300, MTW1-7500
The MTW1 series intelligent breaker is artfully crafted for the AC 50Hz distribution network with a rated voltage of 400V and 690V, offering a comprehensive rated current range between 400A~7500A. This state-of-the-art solution seamlessly distributes electrical energy, providing unwavering protection for circuits and power equipment against the hazards of overload, under-voltage, short circuit and single-phase earth faults. Featuring an intelligent protection feature and precise selective protection, it markedly enhances power supply reliability, effectively preventing
unnecessary power interruptions.The circuit breaker excels with an impressive impulse withstand voltage of8000V at an altitude of 2000 meters (specifically adapted for varying altitudes, with a maximum not exceeding 12000V).
This extraordinary product fully complies with the standards of GB14048.2 for low-voltage switchgear and control equipment, specifically tailored for low-voltage circuit breakers and adheres to IEC60947-2 for low-voltage switchgear and control equipment, part two: low-voltage circuit breaker.
-Style: Drawer style
-Style: Fixed style
-Model Meaning
Pole number (4P indicates 4 Pole, 3P indicates 3 Pole)
Rated Current
Design code
Air Circuit Breaker
Enterprise code

-Control Part: Discover the pinnacle of precision and performance with our advanced control component, meticulously engineered to meet all your power management needs. This expertly crafted control element represents the zenith of innovation, designed to seamlessly handle and optimize your electrical power operations with unmatched accuracy and efficiency.
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 Masterpiece of Conductivity
Pristine Red CopperExquisite Silver Finish Plated with Precision
Remarkable Heat Dissipation Capabilities for Optimal Performance
Exceptional Corrosion Resistance
Enhanced Widening and Thickening of Copper Bar Dimensions
Fully Compliant with Industry Standards
INNOVATIVE CONDUCTIVE SYSTEM
The precise number of contact pieces is meticulously determined by the current
The robust moving contact is crafted from copper plated with luxurious silver materials
The moving contact features brilliant silver dots, ensuring superior conductivity
-Sophisticated Internal Components
Superior Conductive Parts:
- Premium Copper Bars, High-Quality Contacts
Advanced Secondary Control Part:
- Robust Wiring Terminals, Precision Mechanisms, Smart Controllers, Durable Motors, Efficient Coils, and Accurate Current Transformers
Highly Efficient Arc Extinguishing Section:
-Cutting-Edge Interrupter
- Available in Fixed and Versatile Drawer Type Construction
Installation Instructions
-Installed inside the panel
Fixed Type Installation:
The circuit breaker is securely mounted onto the distribution cabinet or installation board and remains stationary, offering steadfast reliability.
Ideal for environments where replacements or upkeep are infrequent, providing peace of mind.
Enjoy straightforward installation and affordable cost-efficiency that maximizes your investment.
Drawout Type Installation:
The circuit breaker is housed on a withdrawable frame designed for convenient maintenance, seamless testing, and effortless replacement.
Perfect for scenarios demanding frequent operation or regular maintenance, ensuring optimal performance.
While installation can be intricate and costly, it provides enhanced adaptability, meeting the dynamic needs of modern electrical environments.
Plug-in Type Installation:
The circuit breaker links to the busbar via a plug-in connection, ensuring swift installation and rapid replacement.
Perfect for environments where quick swaps are essential, minimizing downtime.
-Secondary Wiring Method
1 and 2: Interface the intelligent controller, enhancing system communication.
27 and 28:Link the undervoltage coil, ensuring voltage stability.
29 and 30: Integrate the shunt coil, optimizing current management.
31 and 32:Engage closed coils, securing operational integrity.
34 and 35: Connect the energy-storing motor, empowering long-term functionality.
Comprehensive Mechanical Operation Test:
Meticulously scrutinize the dynamic mechanical movements of the circuit breaker to ensure its superior flexibility and unyielding reliability.Test the flawless execution of operational functions such as
impeccable closing ,precise opening , along with the remarkable precision ofenergy storage efficiency. Electrical Performance Testing Excellence:Conduct an insulation resistance test: Utilize a high-grade megohmmeter to meticulously measure the insulation resistance of both main and auxiliary circuits, ensuring they exceed standard benchmarks (typically ≥ 1M Ω).
Power Frequency Withstand Voltage Test: Apply rated power frequency voltage (such as 2500V/1min) to both the main and auxiliary circuits, meticulously evaluating the robustness and superiority of insulation performance.
Contact Resistance Test: Scrutinize the contact resistance of the primary contact with precision to confirm it remains well below the established threshold (commonly at a micro ohm level).
Protection Function Test Mastery:
Assess the action values and precise timing of advanced protection functions such as
overload, short circuit
, and ground fault. Ensure the accurate calibrationand flawless operability
of the state-of-the-art intelligent release device.
Outer Packaging: A Fortress of Protection, Ensuring Your Peace of Mind
Robust and Resilient: Built to Endure Carefully crafted wooden boxes are strategically selected to offer unparalleled mechanical strength and security.
Wooden crates are meticulously designed, ideal for accommodating large circuit breakers, perfectly tailored for seamless international transportation.
Inner Packaging: Cushioned Care with Precision
Envelop the circuit breaker in layers of protective materials such as high-density foam pads, durable bubble film or resilient pearl cotton to skillfully mitigate the risks of vibration and collision during transit.
For larger circuit breakers, the packaging box can feature a sophisticated layered design, with essential accessories like manuals, precision tools, and handy spare parts) thoughtfully placed on the upper layer to enhance accessibility and efficiency.
Our production line: Where Cutting-Edge Technology Meets Unmatched Excellence
Mingtuo Electric has firmly established a formidable presence within the domestic market and is steadily carving a prestigious niche on the international stage. Our exceptional products are extensively utilized across various sectors such as construction, industry, and energy, thereby earning the trust and admiration of numerous high-profile engineering projects worldwide.
The company is unwaveringly steadfast in upholding its core philosophy ofprioritizing customer satisfaction, ensuring top-notch quality, delivering unparalleled service, and maintaining an impeccable reputation.Moreover, we are wholeheartedly committed to embracing a culture of continuous innovation and visionary growth. Our company proudly boasts a robust technical foundation, cutting-edge production capabilities, and extensive industry experience in research and development, which has earned us a solid reputation for professionalism and technological excellence. We are fully equipped with a comprehensive suite of China's most advanced production, testing, and inspection equipment.
FAQ
Q: What is the product voltage/current range? What's the breaking ability?
A: For comprehensive and detailed information, please reach out directly to our dedicated customer service team who will be eager to assist.
Q: What is the MOQ? Do you support sample ordering?
A: The minimum order quantity is 1 set, and we are pleased to offer full support for sample orders to meet your evaluation needs.
Q: How long is the warranty period? How to apply for warranty?
A: Our products come with a warranty period ranging from one to two years. To apply for warranty service, please contact our customer service team directly for assistance.
Q: Do you have CE, RoHS, UL and other certifications? Can you provide a certificate?
A: We proudly hold CE and RoHS certifications and are more than happy to supply these certificates upon your request.
Q: Does the price include tax/shipping?
A: Please note that the listed price does not include shipping and tax.
Q: What famous clients or project cases have you worked with?
A: Our esteemed clientele includes industry leaders such as the State Grid of China, Chint Group, and Xiaomi Group, showcasing our extensive experience with high-profile projects.