AIR CIRCUIT BREAKER
MTW1-2000, MTW1-3200, MTW1-4000, MTW1-6300, MTW1-7500
The MTW1 series intelligent breaker is expertly engineered for the AC 50Hz distribution network, providing an optimal rated voltage of 400V and 690V, with a versatile rated current range spanning 400A~7500A. This cutting-edge solution not only distributes electric energy efficiently but also offers formidable protection for circuits and power equipment against potential dangers such as overload, under-voltage, short circuit and single-phase earth faults. Enhanced with an intelligent protection feature and precise selective safeguarding, it significantly elevates power supply reliability and avoids
unnecessary power interruptions.The circuit breaker impressively withstands an impulse voltage of8000V at an altitude of 2000 meters (customized for different altitudes, with a peak maximum not exceeding 12000V).
This distinguished product adheres to the prestigious standards of GB14048.2 for low-voltage switchgear and control equipment, with a focus on low-voltage circuit breakers, and complies with 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.
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, this feature adds a sophisticated touch
Remarkable Heat Dissipation Capabilities for Optimal Performance
Exceptional Corrosion Resistance
Enhanced Widening and Thickening of Copper Bar Dimensions ensure durability and efficiency
Fully Compliant with Industry Standards
INNOVATIVE CONDUCTIVE SYSTEM
The precise number of contact pieces is meticulously determined by the current requirements
The robust moving contact is crafted from copper plated with luxurious silver materials, ensuring lasting quality
The moving contact features brilliant silver dots, ensuring superior conductivity throughout
-Sophisticated Internal Components designed for reliability
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 for unparalleled performance
Highly Efficient Arc Extinguishing Section:
-Cutting-Edge Interrupter for seamless operation
- Available in Fixed and Versatile Drawer Type Construction, offering adaptability
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.
Ideal for settings where replacements or upkeep are infrequent.
Enjoy straightforward installation and affordable cost-efficiency.
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.
While installation can be intricate and costly, it provides enhanced adaptability.
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.
-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
1. Comprehensive Mechanical Operation Test: Ensuring Precision and Fluidity
Scrutinize the mechanical operation of the 800A Drawer Air Circuit Breaker to ensure it performs with supreme flexibility and unwavering reliability. This guarantees that every action is executed seamlessly.Test the flawless operation of critical functions such as
closing, as well asopening, and verify the precision ofenergy storage in every scenario. 2. Electrical Performance Testing Excellence: Setting the Standard for ReliabilityConduct an Insulation Resistance Test: Utilize a megohmmeter to meticulously measure the insulation resistance of both main and auxiliary circuits, ensuring they significantly surpass standard requirements (typically ≥ 1M Ω), thus certifying their impeccable integrity.
Power Frequency Withstand Voltage Test: Administer a rated power frequency voltage (e.g., 2500V/1min) to both the main and auxiliary circuits, rigorously testing the robustness of insulation performance to meet and exceed industry expectations.
Contact Resistance Test: Meticulously assess the contact resistance of the primary contact to confirm it remains well below the established threshold, typically at a micro ohm level, ensuring optimal connectivity and performance.
3. Mastery of Protection Function Test: Elevating Safety and Assurance
Evaluate the precise action values and timing of essential protection functions such as
overload, short circuit,
and ground fault occurrences. Assure the meticulous calibration and seamlessoperability
of the cutting-edge intelligent release device, ensuring it acts as a fail-safe to protect and secure operations.
Outer Packaging: A Fortress of Protection
Robust and Resilient Our choice of packaging is nothing short of meticulous craftsmanship, utilizing only the finest wooden boxes. These wooden boxes are strategically selected to offer unparalleled mechanical strength, ensuring the utmost safety of our products.
With their robust build, wooden crates are ideal for accommodating large circuit breakers and are perfectly tailored for seamless international transportation.
Inner Packaging: Cushioned Care
To safeguard the circuit breaker, we envelop it in multiple layers of protective materials like high-density foam pads, premium bubble film or soft pearl cotton to effectively mitigate any risks of vibration and collision during transit.
For larger circuit breakers, our packaging box features a sophisticated, multi-layered design. Essential accessories such as detailed manuals, essential tools, and spare parts) are thoughtfully placed on the upper layer, ensuring enhanced accessibility and a seamless customer experience.
Our production line: Where Technology Meets Excellence
Mingtuo Electric Mingtuo Electric has firmly planted its roots in the domestic market and is making impressive strides internationally. Our exceptional products are widely used across a spectrum of industries, including construction, industry, and energy. We have garnered the trust and admiration of numerous prestigious engineering projects due to our unwavering commitment to quality and innovation.
The company is resolute in adhering to its core philosophy ofputting the customer first, guaranteeing superior quality, providing unparalleled service, and sustaining an impeccable reputation in all endeavors.Further, we are dedicated to fostering a culture of relentless innovation and progressive growth. Our company proudly maintains a strong technical foundation, state-of-the-art production capabilities, and extensive industry experience in research and development. This has earned us a stellar reputation for professionalism and technological excellence. We are fully equipped with an array 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 detailed specifications and technical expertise, please connect directly with our dedicated customer service team, who are ready to assist you.
Q: What is the MOQ? Do you support sample ordering?
A: Our minimum order quantity is set at 1 set, and we cordially offer support for sample orders to accommodate your needs.
Q: How long is the warranty period? How to apply for warranty?
A: Our products come with a warranty period spanning from one to two years. To apply for warranty services, we kindly ask you to get in touch directly with our customer service team.
Q: Do you have CE, RoHS, UL and other certifications? Can you provide a certificate?
A: We proudly hold CE and RoHS certifications. We are delighted to provide these certificates upon your request to assure you of our product's compliance and quality.
Q: Does the price include tax/shipping?
A: Shipping and tax are not included in the listed price. We suggest contacting us for a more comprehensive breakdown of costs.
Q: What famous clients or project cases have you worked with?
A: We have had the privilege of working with distinguished clients such as the State Grid of China, Chint Group, and Xiaomi Group, reflecting our commitment to excellence and reliability.