AIR CIRCUIT BREAKER
MTW1-2000, MTW1-3200, MTW1-4000, MTW1-6300, MTW1-7500
The MTW1 series intelligent breakers are expertly designed for use within AC 50Hz distribution networks, with a rated voltage of 400V and 690V, and an impressive rated current range from 400Ato7500A. They efficiently distribute electrical energy while providing superior protection against potential risks such as overload, under-voltage, short circuit and single-phase earth faults among others. Equipped with sophisticated and highly intelligent protection functionalities, these breakers ensure precise selective protection, enhancing the reliability of power supply while mitigating
any unnecessary power interruptions.This advanced circuit breaker boasts an impulse withstand voltage capacity of8000V at standard altitudes up to 2000 meters. It can be adjusted according to specific altitude requirements where the maximum is not over 12000V.
The product strictly complies with the standards set out in GB14048.2 for 'low-voltage switchgear and control equipment, including low-voltage circuit breakers' and IEC60947-2 for 'low-voltage switchgear and control equipment, Part 2: low-voltage circuit breakers'.
-Style: Available in a convenient Drawer style
-Style: Also offered in a Fixed style
-Model Meaning
Pole number: Identified as 4P for 4 Poles or 3P for 3 Poles
Rated Current
Unique Design code
Air Circuit Breaker
Enterprise code
-Control part: Dive into the specialized control section of our 800A Fixed Air Circuit Breaker ACB, designed to offer seamless operation and precise command functionality. This part ensures optimal performance and reliability in every use.
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: Experience unmatched quality with our premium-grade, meticulously crafted copper bars designed to offer exceptional performance and durability.
Red copper: Our choice of red copper ensures optimal electrical conductivity and strength, making it a cornerstone of our circuit breaker's reliable performance.Silver: The integration of silver in our materials enhances conductivity and longevity, ensuring consistent performance over time. Plated Material: We employ silver plating to increase durability and improve the electrical characteristics of our components.
Good Heat: Our design ensures that heat is managed efficiently, preserving the integrity of the components. Dissipation: State-of-the-art heat dissipation technology guarantees that our product maintains peak performance under varying conditions. Performance: Expect nothing but the best with our circuit breaker, engineered for outstanding reliability and efficiency.
Corrosion Resistance: Our materials are chosen to resist corrosion, thereby extending the lifespan and reliability of the breaker.
Widening: We have optimized the dimensions of our copper bars to enhance their functionality. and Thickening: Enhanced thickness of the copper bars ensures greater resilience and performance under high loads. of Copper Bar Size: Our design adheres to industry standards, balancing size with performance for maximum efficiency.
Compliant with Standards: Our products meet and exceed all relevant industry standards, ensuring you have a product you can trust.
CONDUCTIVE SYSTEM: A sophisticated system designed to deliver consistent conductivity and performance, driven by advanced engineering.
The Number of Contact Pieces: Customizable to current demands, ensuring flexibility and optimized performance. is Determined by the Current: The contact piece count is precisely calibrated to handle the specified current, optimizing efficiency.
The Moving Contact is Made of: Superior materials that ensure longevity and excellent conductivity. Copper Plated Silver: A robust combination that enhances the durability and conductivity of our moving contacts. Material: Selected for its strength and efficiency, ensuring the moving contact delivers peak performance.
The Moving Contact is Made of: Top-quality materials designed to exceed industry standards. Silver: Chosen for its superior conductive properties, ensuring smooth operation. Dots, Good Conductivity: Precision design with silver dots amplifies conductivity, essential for high-performance applications.
-Internal Components: Carefully engineered to provide seamless functionality and reliability across all operating conditions.
Conductive Parts: Built to deliver excellence, these components are the backbone of our circuit breaker's performance:
-Copper Bars, Contacts: Engineered for maximum efficiency and conductivity, ensuring optimal performance.
Secondary Control Part: Advanced control systems include:
-Wiring Terminals, Mechanisms, Controllers, Motors, Coils, Current: Integrated for precision control and reliability. Transformer: Essential for accurate current measurement and management, ensuring overall system efficiency.
Arc Extinguishing Section: Expertly designed to safely and effectively manage electrical arcs:
-Interrupter: Provides swift and reliable arc interruption, enhancing safety and performance.
-Fixed and Drawer Type Construction: Flexible configurations to suit various requirements and applications, ensuring ease of installation and maintenance.
Installation Instructions
-Installed inside the panel
Fixed Type Installation:
The circuit breaker is directly fixed on the distribution cabinet or installation board and cannot be moved.
Perfect for environments that do not require frequent replacement or maintenance.
Effortless installation and minimal cost.
Drawout type installation:
The circuit breaker is installed on a withdrawable frame for convenient maintenance, testing, and replacement.
Ideal for scenarios that require frequent operation or maintenance.
Installation is intricate and comes with higher costs, yet it provides unmatched flexibility.
Plug in type installation:
The circuit breaker connects to the busbar through a plug-in connection, ensuring seamless installation and the ability to replace swiftly.
Perfect for conditions requiring rapid replacement.
-Secondary wiring method
1 and 2: Connect the intelligent controller
27 and 28:Connect the undervoltage coil
29 and 30: Connect the shunt coil
31 and 32:Connect closed coils
34 and 35: Connect the energy storage motor
Mechanical operation test:
Examine the mechanical operation of the circuit breaker to ensure it performs with flexibility and unwavering reliability.
Evaluate the efficiency of operational functions, including secure closing,seamless opening, as well asconsistent energy storage capabilities.
Electrical performance testing:
Insulation resistance test: Utilize a megohmmeter to assess the insulation resistance of both main and auxiliary circuits, ensuring adherence to standards (typically at or above 1M Ω).
Power frequency withstand voltage test: Apply the designated power frequency voltage (e.g., 2500V/1min) across the main and auxiliary circuits to evaluate insulation integrity.
Contact resistance test: Accurately measure the contact resistance of the main contact to confirm it remains below the set threshold (generally within the micro ohm range).
Protection function test:
Evaluate the precision of action values and timing for protection features including overload, short circuit, and ground fault protection.
Confirm the accuracy andeffectiveness of the intelligent release device's performance.
Outer packaging:
To ensure outstanding durability and security, sturdy wooden boxes are meticulously chosen to provide exceptional mechanical strength.
These wooden crates are ideal for housing large circuit breakers and cater to the demands of international transportation.
Inner packaging:
The circuit breaker is carefully enveloped with protective materials such as high-density foam pads, resilient bubble film or premium pearl cotton to effectively mitigate vibration and collision.
For larger circuit breakers, the packaging box may feature a sophisticated layered design, where essential accessories (such as user manuals, specialized tools, and spare parts) are strategically placed on the upper layer for easy access.
Our production line
Mingtuo Electric Mingtuo Electric not only holds a prominent position within the domestic market, but is also ambitiously expanding its reach into international territories. Our products are indispensable in sectors such as construction, industry, and energy, where they have earned the trust and accolades of numerous prestigious engineering projects.
The company adheres to the principle of customer first, quality first, service first, reputation first,and is steadfast in its commitment to innovation and development. The company boasts exceptional technical prowess, cutting-edge production technology, and a wealth of mature experience in research and development. Renowned for our expertise and technological leadership, we maintain a complete arsenal 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 in-depth details, please consult our dedicated customer service team.
Q: What is the MOQ? Do you support sample ordering?
A: Our minimum order quantity is a single set, and we are happy to support sample orders to meet your needs.
Q: How long is the warranty period? How to apply for warranty?
A: Enjoy peace of mind with our product warranty ranging from one to two years. To apply, simply contact our customer service directly.
Q: Do you have CE, RoHS, UL and other certifications? Can you provide a certificate?
A: Yes, we proudly hold CE and RoHS certifications and are ready to provide these upon request.
Q: Does the price include tax/shipping?
A: Please note that the price is exclusive of shipping and tax.
Q: What famous clients or project cases have you worked with?
A: We have had the privilege of working with esteemed clients such as the State Grid of China, Chint Group, and Xiaomi Group.
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