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, boasting a rated voltage of 400V and 690V, delivering a versatile rated current range from 400Ato7500A. This cutting-edge solution ensures efficient electric energy distribution, providing strong protection for circuits and power equipment against potential overload, under-voltage, short circuit , and single-phase earth faults. Designed with an intelligent protection system and precise selective protection, it greatly enhances power supply reliability while preventing
unnecessary power interruptions.The circuit breaker features an outstanding impulse withstand voltage of8000V at an altitude of 2000 meters, with adjustments for altitudes up to 12000V.
This remarkable product rigorously complies with the standards of GB14048.2 for low-voltage switchgear and control equipment, focusing specifically on low-voltage circuit breakers and meets the stringent requirements of 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 stands for 4 Pole, 3P stands for 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 paramount piece of technology is designed to ensure seamless operation, offering unrivaled accuracy and reliability that sets a new standard in the industry. Experience unmatched precision and exceptional efficiency in power management.
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.
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
Comprehensive Mechanical Operation Test:
Scrutinize the mechanical operation of the circuit breaker to ensure it is supremely flexible, unwaveringly dependable, and reliably consistent.Test the seamless operation functions such as
closing, opening, and the precision ofenergy storage. Electrical Performance Testing Excellence:Conduct an insulation resistance test: Utilize a megohmmeter to measure the insulation resistance of both main and auxiliary circuits, ensuring they exceed standard requirements (typically ≥ 1M Ω).
Power Frequency Withstand Voltage Test: Apply the rated power frequency voltage (e.g., 2500V/1min) to both main and auxiliary circuits, evaluating the robustness of the insulation performance.
Contact Resistance Test: Carefully measure the contact resistance of the primary contact to ensure it is below the established threshold (commonly at a micro ohm level).
Protection Function Test Mastery:
Evaluate the action values and timing of protection functions such as
overload, short circuit,
and ground fault. Ensure the calibrationand flawless operability
of the state-of-the-art intelligent release device.
Outer Packaging: A Fortress of Protection
Robust and Resilient Impenetrable wooden boxes are meticulously chosen to deliver unrivaled mechanical strength and durability.
These wooden crates are the perfect choice for housing large circuit breakers, expertly designed for seamless international transportation.
Inner Packaging: Cushioned Care
The circuit breaker is enveloped in multiple layers of protective materials such as resilient foam pads, shock-absorbing bubble film or soft pearl cotton to effectively mitigate risks associated with vibration and collision during transit.
For larger circuit breakers, the packaging box can be crafted with a sophisticated, multi-layered design, ensuring that essential accessories like manuals, tools, and spare parts) are thoughtfully placed on the upper layer, enhancing ease of access and organization.
Our production line: Where Technology Meets Excellence
Mingtuo Electric has established a formidable presence in the domestic market and is steadily carving a niche in the international arena. Our products find extensive application across sectors such as construction, industry, and energy, earning the trust and admiration of numerous high-profile engineering projects.
The company is steadfast in upholding its core philosophy ofprioritizing the customer, ensuring top-notch quality, delivering unparalleled service, and maintaining an impeccable reputation.Additionally, we are committed to embracing a culture of continuous innovation and forward-thinking growth. Our company boasts a robust technical foundation, cutting-edge production capabilities, and rich industry experience in research and development, earning a reputation for professionalism and technological excellence. We are equipped with a full 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 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 pleased to offer support for sample orders.
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, please contact our customer service team directly.
Q: Do you have CE, RoHS, UL and other certifications? Can you provide a certificate?
A: We hold CE and RoHS certifications and are more than happy to supply these certificates upon request.
Q: Does the price include tax/shipping?
A: Please note that shipping and tax are not included in the listed price.
Q: What famous clients or project cases have you worked with?
A: Our esteemed clientele includes the State Grid of China, Chint Group, and Xiaomi Group.