ACB/Air Circuit Breaker
Drawer Type:
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Fixed Type:
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Description:
The MTW1 series intelligent circuit breaker is suitable for AC 50Hz power distribution networks with rated voltages of 400V and 690V and rated currents of 400A to 7500A. It is used to distribute electrical energy and prevent damage to circuits and electrical equipment due to overload, undervoltage, short circuit, and single-phase grounding. This circuit breaker features intelligent protection functions and precise selective protection, improving power supply reliability and preventing unexpected power outages. The impulse withstand voltage of this circuit breaker at an altitude of 2000 meters is 8000V (adjusted according to standards for different altitudes, with a maximum value not exceeding 12000V).
This product complies with GB14048.2 "Low-voltage switchgear and controlgear - Low-voltage circuit breakers" and IEC60947-2 "Low-voltage switchgear and controlgear - Part 2: Low-voltage circuit breakers" standards.
Working principle：
An air circuit breaker (ACB) operates by automatically cutting off current when it detects an overload or short circuit. During normal operation, its main contacts remain closed, allowing current to flow freely. When a sustained overcurrent occurs, the thermal element bends due to heat, triggering the circuit breaker mechanism. In the event of a sudden short circuit, the solenoid coil generates a momentary magnetic force that trips the circuit breaker mechanism. This action rapidly separates the main contacts. A strong electric arc is generated between the separated contacts and is immediately sent to the arc-extinguishing chamber, where the arc is broken up, cooled, and extinguished, thus safely disconnecting the circuit and preventing system damage.
General product information:
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Place of Origin:
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5th Floor, No. 3, Jinghong West Road, Liushi Town, Yueqing City, Wenzhou City, Zhejiang Province |
Brand Name: |
MINGTUO |
Product Name: |
ACB MTW1 |
Certification:(CE、rohs、ISO) |
Product Commercial Terms:
Minimum Order Quantity: |
1 |
Price: |
889$ |
Packaging Details: |
Wooden box packaging |
Delivery Time: |
Within fifteen days |
Payment Terms: |
100% prepaid, 70%/30%, 80%/20% |
Supply Ability: |
Available at any time |
Product details:
Product Composition:
Product raw material advantages:
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COPPER BAR: A Masterpiece of Conductivity
● Introducing Our Pristine Red Copper: Harness the power and purity of premium-grade red copper, designed for impeccable electrical performance.Exquisite Silver Finish: Revel in the stunning, lustrous silver sheen that enhances both aesthetic appeal and functionality.
● Plated with Precision: Experience the meticulous craftsmanship in our silver plating, ensuring exceptional durability and performance.
● Remarkable Heat Management: Our design excels in managing heat efficiently, ensuring sustained optimal performance under pressure. Dissipation Capabilities: Engineered for superior heat dissipation, our products maintain peak efficiency even in demanding conditions.
● Optimal Performance: Delivering outstanding performance to meet the highest industry standards.
● Exceptional Corrosion Resistance: Our copper components are shielded with superior corrosion-resistant technology for long-lasting reliability.
● Enhanced Widening: Featuring an advanced design that includes and Thickening: These enhancements in copper bar dimensions underscore our commitment to quality and performance.
● Copper Bar Dimensions
Fully Compliant with Industry Standards: Our products meet and exceed all industry regulations, ensuring safety and quality.
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Available in Fixed and Versatile Drawer Type Construction: Choose a construction type that fits your needs, offering both fixed and drawer configurations for flexibility.
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Quick Detail:
1.draw-out air circuit breaker
2000A air circuit breaker
3200A frame circuit breaker
low voltage power circuit breaker
industrial air circuit breaker
Draw-Out Air Circuit Breaker (ACB), 2000A to 3200A
2000A Frame Circuit Breaker, Draw-Out Type
Low-Voltage Power Circuit Breaker, 3200A, Drawout Design
2.The primary function of an air circuit breaker (ACB) is as a reliable switch and protection device for the main power distribution system. It effectively protects circuits and equipment in industrial plants, commercial buildings, and large facilities from potential damage caused by overcurrent and short-circuit faults. By instantly interrupting fault current, it ensures the safety of the entire system, prevents electrical fires, and safeguards downstream assets and personnel.
customized production
We can customize different styles of panels and appearances
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Customized vertical copper bars
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Product actual photos
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Quality
INNOVATIVE CONDUCTIVE SYSTEM: Experience cutting-edge technology with our state-of-the-art conductive systems.
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● The precise number of contact pieces: Each contact piece is carefully crafted to ensure optimal current flow and reliability. is meticulously determined by the current: Each design is customized based on the specific current requirements, ensuring precision and efficiency.
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Sophisticated Internal Components: Our components are designed with precision and sophistication for exceptional performance.
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●Superior Conductive Parts: Unmatched in quality, our conductive parts include premium copper bars and high-quality contacts for reliable operation.
● Advanced Secondary Control Part: Leverage the power of innovation with our secondary control parts that promise precision and robustness.
●Highly Efficient Arc Extinguishing Section: A vital component designed to ensure safety and efficiency, equipped with cutting-edge technology. |
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Drawer seat section
The base connection system of this drawer type circuit breaker adopts standardized design, and its core conductive circuit is composed of copper busbars with standard thickness and specifications, ensuring excellent current carrying capacity, low resistance loss, and long-term thermal stability.
The mechanical locking and electrical connection between the base and the circuit breaker body are achieved through a dedicated copper fixture linkage mechanism
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Copper bars for incoming and outgoing lines
The copper bars for the incoming and outgoing lines of air circuit breakers are widened and thickened, made of silver plated purple copper, which is not easily corroded, resistant to oxidation, and has good conductivityThe thickness of copper bars and the number of contact pieces corresponding to different currents are different.
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Testing
Comprehensive Mechanical Operation Test:
● Scrutinize the mechanical operation of the circuit breaker to ensure it is supremely flexible and unwaveringly reliable.
● Test the seamless operation functions such as closing ,opening , and the precision of energy storage.
Electrical Performance Testing Excellence:
Conduct an insulation resistance test: Employ a megohmmeter to measure the insulation resistance of both main and auxiliary circuits, guaranteeing they surpass standard requirements (typically ≥ 1M Ω).
Power Frequency Withstand Voltage Test: Administer rated power frequency voltage (e.g., 2500V/1min) to both the main and auxiliary circuits, assessing the robustness of insulation performance.
● Contact Resistance Test: Meticulously gauge the contact resistance of the primary contact to confirm it is beneath 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.
Assure the calibrationand operability of the cutting-edge intelligent release device.
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Installed inside the panel:
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Fixed Type Installation
The circuit breaker is permanently mounted onto the distribution cabinet or panel and remains fixed in position.
This type is suited for applications where maintenance or replacement is seldom required.
It offers simple installation and economical operation.
Drawout Type Installation
The circuit breaker is installed on a removable chassis, allowing easy access for testing, maintenance, and replacement.
It is designed for systems that undergo frequent operation or regular servicing.
Though more complex and costly to install, this type provides greater flexibility and convenience.
Plug-in Type Installation
The circuit breaker connects directly to the busbar through a plug-in interface, enabling quick installation and replacement.
This design is ideal for applications where rapid unit interchange is necessary.
Application scenarios
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Customer installation return drawing
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Secondary Wiring Method:
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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 |
Applications
Air Circuit Breakers (ACBs) are critical components across a wide spectrum of industries requiring robust low-voltage power distribution and protection.
They are predominantly deployed as main power circuit breakers and heavy-duty feeder protection units in industrial plants, large commercial complexes, and critical infrastructure facilities.
Key application domains include manufacturing facilities, data centers, hospitals, high-rise buildings, shipbuilding, and power generation & distribution systems, where they ensure operational safety, system reliability, and protect expensive equipment from electrical faults.
Parameter:
Wiring diagram:
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Packaging
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Upgraded Packaging
Outer Packaging: A Fortress of Protection
Robust and Resilient wooden boxes are strategically selected to offer unparalleled mechanical strength.
Wooden crates are ideal for accommodating large circuit breakers, perfectly tailored for international transportation.
Outer Packaging: A Fortress of Protection
Robust and Resilient wooden boxes are strategically selected to offer unparalleled mechanical strength.
Wooden crates are ideal for accommodating large circuit breakers, perfectly tailored for international transportation.
Inner Packaging: Cushioned Care
Envelop the circuit breaker in layers of protective materials such as foam pads, bubble film or pearl cotton to mitigate the risks of vibration and collision.
For larger circuit breakers, the packaging box can feature a sophisticated layered design, with essential accessories like manuals, tools, and spare parts) thoughtfully placed on the upper layer to enhance accessibility.
Our production line: Where Technology Meets Excellence
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Shipping
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Domestic transportation
If there is a designated freight forwarder in china, we willtransport the products to the designated location through road transportation or domestic express delivery after production is completed
International transport
When the quantity of goods is small and time is tight, and it needs to be transported to a designated location abroad, the three majorinternational express delivery companies are selected for transportation DHL,FEDEX,UPS
Sea freight/air freight
When there is a large quantity of goods and time is not urgent, we choose sea freight. We will choose a suitable freight company, who wil arrange for trucks to pick up the goods and transport them to the designated por for warehousing. Finaly, they will transpored by sea to the customer's desianated port, and the customer needs to pick up the goods with a bill of lading.
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Certificate:
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FAQ
Q: What is the voltage/current range of this product? What is its breaking capacity?
A: Please contact customer service for details.
Q: What is the minimum order quantity? Do you accept sample orders?
A: The minimum order quantity is 1 set, and we accept sample orders.
Q: What is the warranty period? How do I apply for a warranty?
A: The product warranty is 1 to 2 years. Please contact customer service directly to apply.
Q: Do you have CE, RoHS, UL, or other certifications? Can you provide certificates?
A: We have CE and RoHS certifications and can provide certificates.
Q: Does the price include tax/shipping?
A: The price does not include shipping/tax.
Q: What notable clients or project examples have you worked with?
A: State Grid Corporation of China, Chint Group.
Real photos
Copyright © Zhejiang Mingtuo Electric Technology Co., Ltd.
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