1250A Intelligent Air Circuit Breaker Acb, Fixed Type, Upper Limit +40° C

• Customization: Available
• Breaking Capacity: Low Voltage Circuit Breakers
• Operation: Electric Type
• Model NO.: MTW1-2000/3P
• Speed: High-Speed Circuit Breaker
• Arc-extinguishing Medium: Air
• Installation: Drawer Type
• Structure: ACB
• Poles Number: 3
• Type: Circuit Breaker
• Function: Conventional Circuit Breaker, Overcurrent Protection
• Certification: ISO9001-2000, CE, CCC
• Current: 600A,800A,1000,1250A,1600A,2000A
• Style: Drawer Type,Fixed Type
• Upper Limit Value: No More Than +40ºC
• Controller: L,M,H
• Transport Package: Wooden Box
• Specification: 51*47*53
• Trademark: MINGTUO
• Origin: China Zhejiang
• HS Code: 8536200000
• Production Capacity: 500PCS/Month
• Package Size: 44.00cm * 42.00cm * 50.00cm
• Package Gross Weight: 51.000kg

Product Description

Product Description

AIR CIRCUIT BREAKER

MTW1-2000, MTW1-3200, MTW1-4000, MTW1-6300, MTW1-7500

The MTW1 series intelligent breaker is a robust solution suitable for AC 50Hz distribution networks, offering reliable protection with voltages of 400V and 690V, along with a broad rated current range of 400Ato7500A. Its primary function is to efficiently distribute electrical energy and safeguard your circuits and power equipment against potential threats such as overload, under-voltage, short circuit and single-phase earth faults. Equipped with an intelligent protection mechanism, this breaker offers precise selective protection to boost power supply reliability and prevent

unnecessary power outages.Designed with a robust impulse withstand voltage capability, the circuit breaker can endure up to8000V at altitudes reaching 2000 meters. Adjustments are made to suit different altitudes with a maximum rating not surpassing 12000V.

This product adheres to the stringent requirements of the GB14048.2 standard for low-voltage switchgear and control equipment, as well as the low-voltage circuit breaker standards of IEC60947-2 , which covers the second part of the low-voltage switchgear and control equipment.

-Style: Drawer style

-Style: Fixed style

-Model Explanation

Pole number (4P indicates a 4 Pole configuration, whereas 3P indicates 3 Pole)


Rated Current


Design code


Air Circuit Breaker

Enterprise code

 

Product Parameters

-Control part: Discover the cutting-edge technology embedded in the control components of this state-of-the-art 1250A Intelligent Air Circuit Breaker ACB. Engineered for reliability and precision, our control part ensures seamless operation and optimal performance, making it an indispensable element in modern electrical systems.

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

Detailed Photos

COPPER BAR

Premium Red CopperFinished with lustrous silver plated material for enhanced durability
Superior heat dissipation performance
and exceptional corrosion resistance
Widening and thickening of copper bar size for better efficiency
Crafted to be compliant with high industry standards

CONDUCTIVE SYSTEM

The precise number of contact pieces is expertly determined by the current requirements
The moving contact is crafted from copper plated silver material for optimal performance
The moving contact is exquisitely made of silver dots, ensuring remarkable conductivity

-Sophisticated internal components

Conductive parts include:
-High-quality Copper bars, precision contacts

Secondary control part consists of:
-Wiring terminals, durable mechanisms, cutting-edge controllers, robust motors, efficient coils, and current transformers

Arc extinguishing section is comprised of:
-a reliable interrupter

-Versatile Fixed and drawer type construction for enhanced usability

Installation Instructions

-This circuit breaker should be securely installed within the panel

Fixed Type Installation:

This type of installation involves directly fixing the circuit breaker onto the distribution cabinet, or alternatively on an installation board, ensuring it remains immovable.

Ideal for environments where replacement or maintenance is infrequent.

The process ensures a seamless installation accompanied by a cost-effective solution.

Drawout Type Installation:

Here, the circuit breaker is expertly mounted on a withdrawable framework that facilitates effortless maintenance,smooth testing operations,and seamless replacement.This method is highly suitable for environments necessitating

frequent operational activities as well as ongoing maintenance tasks.Although the setup is intricate and incurs higher costs, it provides

enhanced flexibility and adaptability. This choice is perfect for dynamic settings.

Plug-in Type Installation:

The circuit breaker effortlessly connects to the busbar via a plug-in mechanism, facilitating rapid and straightforward installation and replacement.

This method is particularly beneficial for scenarios demanding swift replacement.

-Secondary Wiring Method

Connections 1 and 2: Facilitate the connection of the intelligent controller
Connections 27 and 28:Engage with the undervoltage coil
Connections 29 and 30: Integrate with the shunt coil
Connections 31 and 32:Securely connect the closed coils
Connections 34 and 35: Link to the energy storage motor for optimal performance.

Product testing

Mechanical operation test takes center stage:

Evaluate the seamless mechanical operation of the circuit breaker to confirm it is perfectly flexible and unwaveringly reliable.

Examine operation functions meticulously, including those for secure closing, smooth opening, and efficient energy storage.

Electrical performance testing is of paramount importance:

Insulation resistance test: Employ a precise megohmmeter to evaluate the insulation resistance of both main and auxiliary circuits, ensuring they conform to stringent standards (typically ≥ 1M Ω).

Power frequency withstand voltage test: Apply a meticulous rated power frequency voltage (such as 2500V/1min) to both the main circuit and auxiliary circuit to rigorously assess insulation integrity.

Contact resistance test: Accurately gauge the contact resistance of the main contact, ensuring it remains below the established benchmark (generally at the micro ohm level).

Protection function test elevates safety:

Assess the precision of action values and timings for protection functions like overload, short circuit, and ground fault.

Meticulously verify the settings andimpeccable functionality of the innovative intelligent release device.

 

Packaging & Shipping

Outer packaging:

To ensure maximum safety and robustness, we employ strong wooden boxes that are typically selected to provide ample mechanical strength, ensuring secure transport.

The wooden crates are ideal for housing large circuit breakers or for international distribution, offering superior protection during transit.

Inner packaging:

The circuit breaker is meticulously wrapped in buffer materials such as high-quality foam pads, resilient bubble film or durable pearl cotton to effectively prevent any vibration and collision during transportation.

For larger circuit breakers, the packaging box is intelligently designed with a layered structure, where essential accessories (including manuals, tools, and spare parts) are conveniently placed on the upper layer for easy access.

Our production line

 

Certifications

Company Profile

 

Mingtuo Electric Mingtuo Electric is not just a leader on the domestic front, but a rising star in the global market. Our products are integral to sectors such as construction, industry, and energy, having earned the trust and endorsement of countless prestigious engineering projects.
Guiding PrinciplesWe are committed to the tenets of customer first, quality first, service first, and reputation first.and continually embrace innovation and development. With robust technical expertise, cutting-edge production techniques, and a wealth of industry experience, we are celebrated for our professionalism and pioneering technological leadership. Our facilities boast the most sophisticated production, testing, and inspection equipment available in China.

Frequently Asked Questions
Q: Can you elaborate on the product's voltage/current range and its breaking capability?
A: For detailed information, please reach out to our customer service team.
Q: What is the minimum order quantity (MOQ)? Is sample ordering available?
A: Our MOQ is just 1 set, and we do indeed support sample orders.
Q: What is the duration of the warranty? How do I avail of it?
A: Our products are backed by a warranty period of one to two years. To apply, kindly contact our customer service.
Q: Are your products certified with CE, RoHS, UL? Can you furnish a certificate?
A: Yes, our products come with CE and RoHS certifications, and we can provide the respective certificates.
Q: Does the quoted price cover tax and shipping costs?
A: Please note that our prices do not include shipping or tax.
Q: Could you highlight some notable clients or projects you've collaborated with?
A: We've partnered with industry giants like the State Grid of China, Chint Group, and Xiaomi Group.