AIR CIRCUIT BREAKER
MTW1-2000, MTW1-3200, MTW1-4000, MTW1-6300, MTW1-7500
The MTW1 series intelligent breaker is meticulously crafted for the AC 50Hz distribution network, featuring a rated voltage of 400V and 690V, delivering a rated current range from 400A~7500A. This state-of-the-art solution effectively distributes electrical energy and offers formidable protection for circuits and power equipment against potential hazards such as overload, under-voltage, short circuit and single-phase earth faults. Integrated with a sophisticated protection feature and precise selective protection, this significantly boosts power supply reliability and curtails
unnecessary power interruptions.The circuit breaker impressively resists impulse voltages up to8000V at an altitude of 2000 meters (adaptable for different altitudes, with a ceiling not exceeding 12000V).
This exceptional product aligns with the stringent standards of GB14048.2 for low-voltage switchgear and control equipment, with a focus on 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. Immerse yourself in a world where state-of-the-art technology orchestrates seamless integration for unmatched reliability 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 |
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COPPER BAR: The Epitome of Electrical Excellence
Pristine Red Copper: A Symphony of Purity and PerformanceExquisite Silver Finish: A Shimmering Touch of Class Plated with Precision: Craftsmanship at Its Finest
Remarkable Heat Management Dissipation Capabilities: Engineered for Excellence for Peak Performance and Efficiency
Unmatched Corrosion Resistance: Built to Endure
Enhanced Widening and and Thickening: Ingenious Design Features of Copper Bar Dimensions: Precision and Power
Fully Aligned with Rigorous Industry Standards
INNOVATIVE CONDUCTIVE SYSTEM: A Benchmark of Modern Technology
The exact number of contact pieces is meticulously calibrated for optimal current handling
The sturdy moving contact is formed from copper, lavishly coated with silver of the finest quality
The moving contact boasts brilliant silver dots, ensuring unparalleled conductivity
-Sophisticated Internal Components: Precision-Engineered
Superior Conductive Parts:
- Premium Copper Bars, High-Quality Contacts to Ensure Reliability
Advanced Secondary Control Part:
- Robust Wiring Terminals, Precision Mechanisms, Smart Controllers, Durable Motors, Efficient Coils, and Accurate Current Transformers: The Hallmark of Efficiency
Highly Efficient Arc Extinguishing Section: Innovative Engineering
-State-of-the-Art Interrupter
- Available in Both Fixed and Versatile Drawer Type Configurations
Installation Instructions
-Installed inside the panel
Fixed Type Installation:
The circuit breaker is impeccably secured onto the distribution cabinet or installation board and steadfastly remains in place.
This is the ideal solution for environments where replacements or regular upkeep are seldom required.
Experience the ease of a straightforward installation and delight in cost-efficiency that is second to none.
Drawout Type Installation:
The circuit breaker resides within a withdrawable frame engineered for convenient maintenance, seamless testing, and effortless replacement.
This configuration is perfect for scenarios demanding frequent operation or regular maintenance.
Although the installation is more intricate and costly, it offers enhanced adaptability.
Plug-in Type Installation:
The circuit breaker seamlessly connects to the busbar through a plug-in interface, ensuring both swift installation and rapid replacement.
This type is perfect for environments where quick exchanges 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
Comprehensive Mechanical Operation Test:
Delve into the intricate mechanical movements of the circuit breaker, ensuring that it operates with utmost flexibility and steadfast reliability.Evaluate the smooth execution of essential functions such as
closing ,opening , along with the meticulous accuracy ofenergy storage. Excellence in Electrical Performance Testing:Perform a thorough insulation resistance test: Utilize a high-precision megohmmeter to measure the insulation resistance of both main and auxiliary circuits, ensuring they exceed stringent standards (generally ≥ 1M Ω).
Power Frequency Withstand Voltage Test: Implement the rated power frequency voltage (such as 2500V for 1 minute) to both the main and auxiliary circuits, evaluating the integrity and resilience of the insulation performance.
Contact Resistance Test: Carefully measure the contact resistance of the primary contact to ensure it remains below the specified limit (usually at a micro ohm level).
Mastery of Protection Function Testing:
Assess the precision of action values and timing for protection functions such as
overload, short circuit
, and ground fault. Ensure the accurate calibrationand seamless operability
of the state-of-the-art intelligent release device.
Outer Packaging: A Fortress of Protection
Robust and Resilient Our wooden boxes are meticulously crafted to provide an unbeatable level of mechanical strength. These strategically selected containers ensure that your products journey with unmatched safety and security.
Wooden crates are the optimal choice for housing large circuit breakers, expertly designed for the rigors of international transportation.
Inner Packaging: Cushioned Care
The circuit breaker is enveloped in multiple layers of protective materials such as foam pads, bubble film or pearl cotton to effectively reduce the risks of vibration and collision, ensuring that every component arrives in pristine condition.
For larger circuit breakers, the packaging box can feature an innovative layered design, with essential accessories like manuals, tools, and spare partsthoughtfully positioned on the upper layer to enhance ease of access and organization.
Our production line: Where Technology Meets Excellence
Mingtuo Electric Mingtuo Electric has firmly established its robust presence in the domestic market and is ambitiously expanding its reach into the global scene. Our diverse range of products is extensively utilized across vital sectors like construction, industry, and energy, earning the trust and admiration of numerous esteemed high-profile engineering projects.
The company is steadfastly dedicated to upholding its core philosophy ofputting the customer first, ensuring superior quality, delivering exceptional service, and maintaining an impeccable reputation.Additionally, we are resolutely committed to fostering a culture of continuous innovation and visionary growth. Our company proudly boasts a strong technical foundation, state-of-the-art production capabilities, and extensive industry experience in research and development, earning a reputation for unparalleled professionalism and technological excellence. We are equipped with an extensive 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 and comprehensive information, we warmly invite you to reach out directly to our customer service team.
Q: What is the MOQ? Do you support sample ordering?
A: The minimum order quantity is 1 set, and we are delighted to offer support for sample orders.
Q: How long is the warranty period? How to apply for warranty?
A: Our products are accompanied by a warranty period ranging from one to two years. To apply, please contact our dedicated customer service team directly.
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 provide these certificates upon request.
Q: Does the price include tax/shipping?
A: Please be informed that shipping and tax are not included in the listed price.
Q: What famous clients or project cases have you worked with?
A: Our prestigious clientele includes industry giants such as the State Grid of China, Chint Group, and Xiaomi Group.