Introducing the Revolutionary AIR CIRCUIT BREAKER by Zhejiang Mingtuo Electric Technology Co., Ltd., a hallmark of innovation in electrical safety.
Presenting the MTW1 Series: MTW1-2000, MTW1-3200, MTW1-4000, MTW1-6300, MTW1-7500, embodying cutting-edge technology.
The state-of-the-art MTW1 series intelligent breaker is meticulously crafted for the AC 50Hz distribution network, boasting a rated voltage of 400V and 690V, with an expansive rated current range that spans from 400Ato an impressive7500A. This sophisticated solution deftly manages the distribution of electric energy while delivering stalwart protection for circuits and power equipment against potential perils of overload, under-voltage, short circuit and single-phase earth faults. Featuring an advanced intelligent protection mechanism and precise selective protection, it remarkably boosts power supply reliability and forestalls
unnecessary power outages.The circuit breaker is endowed with an extraordinary impulse withstand voltage capacity of8000V at an altitude of 2000 meters. Adaptations are available for different altitudes, with a paramount not exceeding 12000V.
This outstanding product is fully compliant with the stringent standards of GB14048.2 pertaining to low-voltage switchgear and control equipment, pinpointing low-voltage circuit breakers, and aligns with IEC60947-2 for low-voltage switchgear and control equipment, part two: low-voltage circuit breaker.
-Style: Sleek Drawer style that facilitates ease of installation and access.
-Style: Robust Fixed style, ensuring a durable and steadfast installation.
-Model Significance
Pole configuration (4P represents 4 Pole, 3P signifies 3 Pole), crucial for efficient circuit management.
Rated Current Specification, crucial for understanding the specific electrical demands and system requirements.
Design Code Identification, ensuring a seamless and accurate reference to product specifications.
Air Circuit Breaker Specification, detailing the comprehensive features and capabilities.
Enterprise Code, a symbol of authenticity and commitment to quality by Zhejiang Mingtuo Electric Technology Co., Ltd.

-Control Part: Discover the pinnacle of precision and performance with our advanced control component. This cutting-edge system is meticulously engineered to perfectly address all your power management needs. Experience the state-of-the-art in control systems, crafted to guarantee flawless operation and optimal efficiency. Our system caters to every conceivable requirement of modern power management with unmatched reliability, ensuring you have the best in class performance and dependability.
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 - Experience the pinnacle of electrical efficiency with our expertly crafted copper bars, ensuring top-tier performance in every application.
Pristine Red Copper: Crafted for excellence, each bar showcases the purest form of conductivity, delivering unmatched electrical performance.Exquisite Silver Finish: Each piece is adorned with a meticulously applied silver coating, dramatically enhancing performance and ensuring longevity. Plated with Precision: Every detail is covered with precision plating, ensuring unrivaled durability and superior electrical flow.
Remarkable Heat Management: Our design excels in efficiently handling thermal demands, providing reliable operation under all conditions. Dissipation Capabilities: Engineered to disperse heat effectively, ensuring sustained and consistent performance over time. For Optimal Performance: Designed with precision, our products ensure peak operational efficiency and reliability.
Exceptional Corrosion Resistance: Built to withstand environmental challenges, our products extend their lifecycle and maintain peak performance.
Enhanced Widening: Strategically expanded dimensions improve conductivity and overall electrical performance. and Thickening: Reinforced for added strength, our design ensures heightened efficiency in power distribution. of Copper Bar Dimensions: Precisely engineered, these dimensions offer superior electrical performance and reliability.
Fully Compliant with Industry Standards: Each product ensures reliability and safety, meeting and exceeding industry expectations every time.
INNOVATIVE CONDUCTIVE SYSTEM: Leading the charge in electrical innovation, our system is designed for modern and future demands.
The precise number of contact pieces: Carefully optimized to maximize current flow and efficiency, ensuring robust electrical performance. is meticulously determined by the current: Our engineering ensures precise alignment with electrical requirements, offering unparalleled precision.
The robust moving contact is crafted from: High-quality materials, delivering unwavering performance and durability. copper plated with luxurious silver: Combining exceptional strength and elegance for superior connectivity and enhanced performance. materials
The moving contact features: A dedicated design for optimal electrical transmission and seamless performance. brilliant silver: The choice for unparalleled conductivity and superior electrical performance. dots, ensuring superior conductivity: Expertly designed to offer the best electrical interface and connectivity.
-Sophisticated Internal Components: Engineered with precision, these components ensure ultimate reliability and seamless operation.
Superior Conductive Parts: Created for exceptional power delivery, our parts guarantee durability and performance.
- Premium Copper Bars, High-Quality Contacts: The backbone of our electrical solutions, crafted with excellence for superior results.
Advanced Secondary Control Part: State-of-the-art components for seamless control, efficient operation, and precision.
- Robust Wiring Terminals, Precision Mechanisms, Smart Controllers, Durable Motors, Efficient Coils, and Accurate Current Transformers: Built to meet the highest standards of electrical performance, ensuring reliability and efficiency.
Highly Efficient Arc Extinguishing Section: Innovations that ensure safety, reliability, and efficiency in every use.
-Cutting-Edge Interrupter: Designed with the latest technology for superior arc management and unmatched electrical performance.
- Available in Fixed and Versatile Drawer Type Construction: Offering flexibility and adaptability to meet your specific needs and preferences.
Installation Instructions
-Installed inside the panel
Fixed Type Installation:
The circuit breaker is expertly secured to the distribution cabinet or installation board and remains steadfastly in place.
Perfectly suited for environments where replacements or maintenance are seldom needed,
this method offers straightforward installation and cost-effective affordability.
Drawout Type Installation:
The circuit breaker is nestled within a withdrawable frame, enabling easy maintenance, smooth testing, and simple replacement.
This setup is optimal for situations requiring frequent operation or ongoing maintenance.
Despite a complex and potentially costly installation process, it offers superior adaptability.
Plug-in Type Installation:
The circuit breaker connects to the busbar with a plug-in mechanism, ensuring fast installation and quick replacement.
Ideal for settings where swift replacements are of utmost importance.
-Secondary Wiring Method
1 and 2: Interface the intelligent controller
27 and 28:Link the undervoltage coil
29 and 30: Integrate the shunt coil
31 and 32:Engage closed coils
34 and 35: Connect the energy-storing motor
Comprehensive Mechanical Operation Test Excellence: Every detail matters.
Delve deep into the intricate mechanical workings of the circuit breaker with precision, ensuring incredible adaptability and unwavering dependability at every turn.Meticulously examine the seamless and flawless operational capabilities such as
closing, opening, and the painstaking precision embedded inenergy storage dynamics. Electrical Performance Testing Mastery: Pursuing ExcellenceEmbark on an insulation resistance test journey: Employ a megohmmeter to expertly measure the insulation resistance of both main and auxiliary circuits, ensuring they surpass industry standards (typically ≥ 1M Ω).
Power Frequency Withstand Voltage Test: Diligently apply the rated power frequency voltage (e.g., 2500V/1min) to both the main and auxiliary circuits to rigorously evaluate insulation robustness and integrity.
Contact Resistance Test: Accurately measure the contact resistance of the primary contact, affirming it remains below the set threshold (commonly at a micro ohm level) for optimal performance.
Protection Function Test Superiority: A New Standard
Scrutinize the action values and timing of protection functions, including
overload, short circuit,
and ground fault, with utmost precision. Ensure the precise calibrationand flawless operability
of the cutting-edge intelligent release device for unparalleled safety and reliability.
Outer Packaging: A Fortress of Protection
Robust and Resilient We employ wooden boxes, meticulously chosen for their unparalleled mechanical strength, ensuring your products are fortified against the challenges of transportation. Our strategically selected wooden boxes offer unrivaled durability, safeguarding your valuable products throughout the transportation journey.
Wooden crates provide an impeccable solution for large circuit breakers, specifically engineered to meet the stringent demands of international shipping with accuracy and reliability.
Inner Packaging: Cushioned Care
The circuit breaker is encased in multiple layers of high-quality protective materials, including foam pads,bubble film, or pearl cotton, all designed to effectively mitigate risks associated with vibration and collision, ensuring a secure transit. Our packaging for larger circuit breakers features an advanced multi-layered structure, with essential accessories like
manuals, tools, and spare parts carefully positioned on the upper layer for effortless access and convenience.Our production line: Where Technology Meets Excellence
Experience a seamless fusion of cutting-edge technology and superior craftsmanship on our production line, where every product is a testament to excellence.
Mingtuo Electric Mingtuo Electric has emerged as a dominant force in the domestic market and is ambitiously spreading its wings on the global stage. Our wide array of products is indispensable in key sectors such as construction, industry, and energy. We have garnered the trust and accolades of numerous esteemed engineering projects worldwide, reflecting our excellence and reliability.
The company remains steadfast in its dedication to its foundational principles ofplacing the customer at the forefront, ensuring matchless quality, delivering unparalleled service, and upholding a sterling reputation.Moreover, our zeal for nurturing a culture of relentless innovation and visionary expansion is unwavering. Our company is proud to have an impressive technical foundation, cutting-edge production capabilities, and deep industry expertise in research and development, earning us recognition for our professionalism and technological leadership. We are equipped with an advanced suite of China's most sophisticated production, testing, and inspection equipment.
FAQ
Q: What is the product voltage/current range? What's the breaking ability?
A: For comprehensive details, please contact our dedicated customer support team who are ready to assist you with expert guidance.
Q: What is the MOQ? Do you support sample ordering?
A: Our minimum order quantity is 1 set, and we are pleased to accommodate and support sample orders for your convenience.
Q: How long is the warranty period? How to apply for warranty?
A: Our products are backed by a warranty period of one to two years. To initiate a warranty claim, please contact our dedicated customer service team who are ready to assist you.
Q: Do you have CE, RoHS, UL, and other certifications? Can you provide a certificate?
A: We proudly hold CE and RoHS certifications and can promptly provide these certificates upon request to meet your requirements.
Q: Does the price include tax/shipping?
A: Please be informed that shipping and tax costs are not included in the listed price and may vary based on location.
Q: What famous clients or project cases have you worked with?
A: Our esteemed clientele boasts renowned names such as the State Grid of China, Chint Group, and Xiaomi Group, highlighting our reputation for excellence.