Durable Acb 1250A Fixed Type Air Circuit Breaker, Reliable OEM Design

• Customization: Available
• Breaking Capacity: Low Voltage Circuit Breakers
• Operation: Electric Type
• Speed: High-Speed Circuit Breaker
• Arc-extinguishing Medium: Air
• Installation: Fixed Type
• Structure: ACB
• Poles Number: 4
• 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 masterfully engineered for use in distribution networks operating at an AC frequency of 50Hz. It is perfectly suited for applications requiring a rated voltage of 400V and 690V, offering a robust rated current range from 400Ato 7500A. This breaker excels in effectively distributing electrical energy while providing paramount protection to circuits and power equipment from potential harm due to overload, under-voltage, short circuit and single-phase earth faults. This state-of-the-art breaker comes equipped with advanced intelligent protection features along with precise selective protection, significantly enhancing the reliability of your power supply and greatly reducing the risk of

unintended power outages.The circuit breaker boasts an extraordinary impulse withstand voltage of8000V at an altitude of 2000 meters. It is adaptable to varying altitudes with an exceptional maximum capacity reaching up to 12000V.

This product proudly adheres to the stringent standards of GB14048.2 for low-voltage switchgear and control equipment, specifically concentrating on low-voltage circuit breakers, and it also complies with IEC60947-2 for low-voltage switchgear and controlling equipment Part 2: Low-voltage circuit breakers.

-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

 

Product Parameters

-Control part: Experience unmatched precision and efficiency with our advanced control system, meticulously designed to ensure seamless operation and optimal performance at all times. This cutting-edge technology offers superior reliability, consistently delivering excellence in performance. Trust in our unwavering commitment to quality, engineered to meet and exceed your expectations, providing a harmonious blend of innovation and functionality.

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

Crafted from premium red copperElegantly adorned with silver plated material, ensuring enhanced longevity and resilience
Exceptional heat dissipation performance, delivering optimal operational efficiency
High resistance to corrosion
Innovative widening and thickening techniques meticulously applied to copper bar size for unmatched performance
Meticulously crafted to comply with stringent industry standards

CONDUCTIVE SYSTEM

The exact number of contact pieces is expertly calibrated according to the current load demand
The moving contact is masterfully crafted from copper, richly plated with lustrous silver material
The moving contact is ingeniously engineered from high-quality silver dots, ensuring superior conductivity

-Internal components

Conductive parts encompass:
-Copper bars and precision-crafted contacts

Secondary control component highlights:
-Innovative wiring terminals, advanced mechanisms, intelligent controllers, robust motors, high-quality coils, and precision current transformer

State-of-the-art Arc extinguishing section:
-sophisticated interrupter

-Engineered in both fixed and drawer type configurations for versatile application potential

Installation Instructions

-Installed inside the panel

Fixed Type Installation:

The circuit breaker is meticulously secured on the distribution cabinet or installation board and remains steadfast once mounted.

Perfectly suited for applications where frequent switching or intensive maintenance is not necessary.

Achieve easy installation and enjoy a budget-friendly setup.

Drawout Type Installation:

This model is adeptly secured on a withdrawable frame, facilitating hassle-free maintenance, rigorous testing, and straightforward component replacement.

An excellent choice for settings that demand consistent operation or routine servicing.

Although installation is complex and incurs greater expense, it offers superior adaptability.

Plug in Type Installation:

The circuit breaker integrates smoothly with the busbar through a plug-in mechanism, ensuring expedited installation and rapid component replacement.

Ideal for situations that require swift replacement.

-Secondary Wiring Method

1 and 2: Connect the intelligent controller with precision
27 and 28:Link the undervoltage coil with efficiency
29 and 30: Securely attach the shunt coil for optimal performance
31 and 32:Anchor the closed coils robustly
34 and 35: Connect the energy storage motor with unwavering reliability

Product testing

Mechanical Operation Test: Ensuring Smooth Functionality

Check the flexibility and reliability of the circuit breaker's mechanical operations. flexible and reliable.

Examine the precise operation functions including: closing, closing, opening, and energy storage.

Electrical Performance Testing: A Benchmark for Excellence

Insulation Resistance Test: Employ a megohmmeter to meticulously measure the insulation resistance of both main and auxiliary circuits, ensuring alignment with the standard (commonly ≥ 1M Ω).

Power Frequency Withstand Voltage Test: Apply the rated power frequency voltage (such as 2500V/1min) to the main and auxiliary circuits to assess insulation performance efficiency.

Contact Resistance Test: Accurately measure the contact resistance of the main contact, ensuring it remains below the specified value (typically at the micro ohm level).

Protection Function Test: Safeguarding Your System

Assess the action values and timing of protection functions, including overload, short circuit, overload, short circuit, and ground fault.

Verify the precise settings and functionality of the settings andfunctionality intelligent release device, ensuring optimal performance.

 

Packaging & Shipping

Outer packaging:

To ensure unparalleled protection and strength for our products, we utilize robust and durable wooden boxes that are specifically designed to provide exceptional mechanical strength, safeguarding your investment during transit.

Our wooden crates are perfectly suited for accommodating large circuit breakers or for resilient international transportation, ensuring your products arrive in pristine condition.

Inner packaging:

To achieve maximum protection for each circuit breaker, we meticulously wrap it with high-quality buffer materials such as foam pad, bubble film or pearl cotton to effectively mitigate any vibration or collision during transportation, ensuring the integrity of the product.

For larger circuit breakers, we offer a sophisticated packaging solution with a layered design, allowing accessories like manuals, tools, and spare partsto be conveniently and securely placed on the upper layer, ensuring perfect organization and accessibility.

Our production line

 

Certifications

Company Profile

 

Mingtuo Electric Zhejiang Mingtuo Electric Technology Co., Ltd. commands a leading presence, both domestically and globally. Our products, lauded for their exceptional versatility, are indispensable across construction, industry, and energy sectors. Trusted by numerous high-profile engineering projects, our solutions consistently earn the loyalty and admiration of customers worldwide for their reliability and innovation.
The company adheres to an unyielding ethos ofcustomer first, quality first, service first, reputation firstand passionately pursues innovation and advancement. The company boasts unparalleled technical prowess, state-of-the-art production techniques, and a wealth of industry expertise in research and development. Celebrated for our professional acumen and technological leadership, our company is furnished with a complete arsenal of the most sophisticated production, testing, and inspection equipment in China.

FAQ
Q: What is the product voltage/current range? What's the breaking ability?
A: For comprehensive details on product specifications and breaking capacity, please engage with our dedicated customer service team, who are ready to assist with any inquiries.
Q: What is the MOQ? Do you support sample ordering?
A: We are delighted to offer a minimum order quantity as low as 1 set, and we enthusiastically support sample orders to ensure optimal customer satisfaction.
Q: How long is the warranty period? How to apply for warranty?
A: Enjoy peace of mind with our comprehensive warranty period of one to two years, ensuring reliable protection. Applying for a warranty is straightforward through our dedicated customer service team.
Q: Do you have CE, RoHS, UL and other certifications? Can you provide a certificate?
A: We're pleased to affirm that we hold CE and RoHS certifications and are more than happy to provide these certificates upon your request.
Q: Does the price include tax/shipping?
A: Please be advised that the listed price is exclusive of shipping and tax.
Q: What famous clients or project cases have you worked with?
A: We have had the distinct honor of collaborating with prestigious clients such as the State Grid of China, Chint Group, and Xiaomi Group, reinforcing our reputation for excellence.