AIR CIRCUIT BREAKER
MTW1-2000, MTW1-3200, MTW1-4000, MTW1-6300, MTW1-7500
The MTW1 series intelligent breaker is meticulously crafted for the distribution network of AC 50Hz with a rated voltage of 400V and 690V, and a rated current range of 400A~7500A. This ensures the effective distribution of electrical energy while safeguarding the circuit and power equipment from the damaging effects of overload, under-voltage, short circuit and single-phase earth faults, etc. Equipped with intelligent protection functions and precise selective protection, this breaker enhances the reliability of power supply, minimizing the risk of
unintended power interruptions.Boasting an impressive impulse withstand voltage of8000V at an altitude of 2000 meters (adjustments made as per varying altitude standards, with a maximum not exceeding 12000V).
This product complies with the rigorous standards of GB14048.2 for "low-voltage switchgear and controlling equipment, the low-voltage circuit breaker" as well as IEC60947-2 for "low-voltage switchgear and controlling equipment, the second part: low-voltage circuit breaker."
-Style: Drawer style
-Style: Fixed style
-Model Meaning
Pole number (4P denotes 4 Pole, 3P denotes 3 Pole)
Rated Current
Design code
Air Circuit Breaker
Enterprise code
-Control part
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 EXCELLENCE
Crafted from the Finest Red CopperEnhanced with Premium Silver Delicately Plated Material for Superior Performance
Outstanding Heat Dissipation Capabilities for Unmatched Performance
Exceptional Corrosion Resistance
Expertly Widening and Precision Thickening of Copper Bar Dimensions
Fully Compliant with Industry Standards
REVOLUTIONARY CONDUCTIVE SYSTEM
The optimal number of contact pieces is meticulously determined by the current needs
The mobile contact is expertly crafted from copper plated with lustrous silver material to ensure durability
The moving contact features silver dots, offering excellent conductivity
-Robust Internal Components
Vital Conductive Parts:
-Including Precision Copper Bars, Contacts
Advanced Secondary Control Part:
-Featuring Wiring Terminals, Mechanisms, Controllers, Motors, Coils, and Current Transformers
Innovative Arc Extinguishing Section:
-Utilizing High-Performance Interrupters
-Available in Fixed and Drawer Type Constructions
Installation Instructions
-Installed inside the panel
Fixed Type Installation:
The circuit breaker is securely anchored within the distribution cabinet or installation board and remains stationary.
Ideal for environments where replacements or maintenance are infrequent.
Effortless installation and economically efficient.
Drawout type installation:
The circuit breaker is mounted on a withdrawable frame facilitating convenient maintenance, testing, and replacement.
Perfect for scenarios demanding frequent operation or maintenance.
Installation may be intricate and costly, yet it delivers enhanced adaptability.
Plug in type installation:
The circuit breaker connects seamlessly to the busbar via plug-in connection for swift installation and rapid replacement.
Ideal for conditions necessitating prompt replacements.
-Secondary wiring method
1 and 2: Connect the intelligent controller
27 and 28:Link the undervoltage coil
29 and 30: Integrate the shunt coil
31 and 32:Secure closed coils
34 and 35: Connect the energy storage motor
Mechanical operation test:
Ensure that the circuit breaker operates with flawless mechanical precision, flexibility and unwavering reliability.
Thoroughly evaluate operation functions such as closing, opening, and energy storageto ensure seamless performance.
Electrical performance testing:
Conduct an insulation resistance test using a megohmmeter to evaluate the main and auxiliary circuits, guaranteeing that they adhere to the standard benchmark of usually ≥ 1M Ω.
Perform a power frequency withstand voltage test by applying the rated power frequency voltage (such as 2500V/1min) to the main and auxiliary circuits, meticulously assessing insulation performance.
Measure the contact resistance of the main contact to confirm it remains below the specified threshold, typically at the micro ohm level.
Protection function test:
Diligently test the action values and response times of protection functions including overload, short circuit, and ground faultto ensure comprehensive safety features.
Authenticate the settings andcapabilities of the intelligent release device, ensuring peak operational effectiveness.
Outer Packaging:
Robust wooden crates are typically employed to ensure maximum mechanical durability and protection.
These sturdy wooden crates are perfect for accommodating large circuit breakers or facilitating international transport.
Inner Packaging:
The circuit breaker is carefully enveloped with protective cushioning materials like foam padding, bubble wrap or pearl cotton to minimize any risk of vibration and impact damage.
For larger circuit breakers, the innovative packaging design may incorporate a multi-layered approach, with essential accessories (such as manuals, tools, or spare parts) thoughtfully arranged on the upper tier.
Our cutting-edge production line
Mingtuo Electric Mingtuo Electric stands as a formidable force in the domestic arena and is ambitiously charting its course across global markets. Our innovative products illuminate sectors including construction, industry, and energy, winning accolades and securing trust from a multitude of prestigious engineering projects worldwide.
The company adheres to the foundational principle ofcustomer first, quality first, service first, reputation firstand relentlessly champions the ethos of innovation and development. At the heart of Mingtuo's ethos lies robust technical prowess, cutting-edge production methodologies, and a wealth of seasoned expertise in research and development. Esteemed for our professionalism and avant-garde technological leadership, we boast a comprehensive array of the most advanced production, testing, and inspection apparatus available in China.
FAQ
Q: What is the product voltage/current range? What's the breaking ability?
A: We warmly invite you to engage with our customer service team for detailed product specifications.
Q: What is the MOQ? Do you support sample ordering?
A: Our minimum order quantity is set at 1 set, and we proudly support sample ordering to meet your needs.
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 apply, please reach out directly to our customer service team.
Q: Do you have CE, RoHS, UL and other certifications? Can you provide a certificate?
A: We are accredited with CE and RoHS certificates, and we are more than happy to furnish these documents upon request.
Q: Does the price include tax/shipping?
A: Please note, the listed prices do not encompass shipping or tax.
Q: What famous clients or project cases have you worked with?
A: We are proud to have collaborated with renowned entities such as the State Grid of China, Chint Group, and Xiaomi Group.
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