AIR CIRCUIT BREAKER
MT/MVS
ACB (Air Circuit Breaker) is a high-performance low-voltage circuit breaker, with representative models including MT/NT and MVS series, covering rated currents of 630A~6300A, with a breaking capacity of up to 150kA, suitable for industrial, commercial, and energy distribution systems.
Core features:
Intelligence: Built in Micrologic release, supports real-time monitoring (current, voltage, fault recording) and remote control, compatible with EcoStruxure platform.
High reliability: modular design, optional electronic/thermal magnetic protection, with a lifespan of tens of thousands of operations.
Comprehensive protection: Provides overload, short circuit, and ground fault protection, and supports selective coordination.
Flexible Expansion:Communication modules (Modbus, Ethernet) and auxiliary contacts can be installed.
Suitable for scenarios such as data centers, factories, and large buildings, known for high security, digital management, and low energy consumption, in compliance with IEC/GB standards.
Working principle:
The air circuit breaker monitors the current in the circuit in real-time through a current transformer. And transmit the current signal to the intelligent controller.
After the intelligent controller detects the abnormal current, it will disconnect the contacts inside the circuit breaker and cut off the circuit
| Current |
630A-6300A |
| Number of pole |
3P 4P |
| Breaking Capacity |
N1,N2,H1,H1B,H2,H3,L1 |
| Type |
Fixed Drawer |
| Model |
MT/NW/MVS |
Outstanding Product Features:
ΔCrafted with High-Temperature Resistant & Flame-Retardant Casing for Unmatched Safety
ΔEngineered with Copper-Plated Silver Alloy Contacts (Dynamic/Static) for Optimal Performance
ΔIncorporates Silver Alloy Contacts Ensuring High Conductivity & Exceptional Arc Resistance
ΔEquipped with Thick Copper-Plated Silver Busbars as Standard In/Out Terminals
ΔGuaranteed PCB Reliability through a Rigorous 48-Hour Aging Test
Installation Instructions
· MTN and MTH series, ranging from 800A to 6300A (excluding 4000A), feature the same connection terminals, ensuring a seamless and uniform installation process.;
With these advanced terminals, no extra space is needed for front connections, maintaining the sleek profile of the circuit breaker.
· For versatile connectivity, whether on horizontal or vertical busbars, simply rotate the connection terminal by 90 degrees to suit your specific installation requirements.
Mechanical Operation Test: A critical evaluation to ensure flawless performance.
Verify whether every mechanical function of the circuit breaker operates with exceptional flexibility and unwavering reliability.
Conduct thorough tests on operational functions, including closing, opening,and energy storage,ensuring seamless performance every time.
Electrical Performance Testing: Dive deeper into the electrical capabilities with comprehensive assessments.
Insulation Resistance Test: Employ a high-precision megohmmeter to meticulously measure the insulation resistance across main and auxiliary circuits, assuring they meet stringent standards (typically ≥ 1M Ω).
Power Frequency Withstand Voltage Test: Subject the main and auxiliary circuits to rated power frequency voltage (e.g., 2500V/1min) to affirm superior insulation performance.
Contact Resistance Test: Accurately measure the contact resistance of the main contact, ensuring it remains below the specified micro ohm threshold.
Protection Function Test: An essential examination of the circuit breaker's protective capabilities.
Assess the precision of action values and timing for protection functions such as overload, short circuit, and ground fault, ensuring the utmost safety..
Confirm the accuracy andefficacy of the intelligent release device, guaranteeing reliable protection at all times.
Outer packaging:
Robust wooden boxes are typically used to ensure optimal mechanical strength and protection.
Wooden crates are ideal for housing large circuit breakers or for international transport.
Inner packaging:
Safeguard the circuit breaker with cushioning materials, such as foam pads, bubble wrap or pearl cotton , to effectively mitigate vibration and prevent collisions.
For larger circuit breakers, packaging may incorporate a layered design, where accompanying accessories like manuals, tools, and spare partsare neatly placed on the upper layer.
Domestic transportation
Should a specific freight forwarder in China be appointed, we ensure delivery of the products to the designated site through reliable road transport or efficient domestic express services once production is finalized.
International transport
For smaller quantities requiring swift delivery abroad, we partner with leading international express couriers to transport to the specified foreign location, choosing from trusted names like
DHL, FEDEX, and UPS.
Sea freight/air freight
For bulk shipments where urgency is less of a factor, we opt for sea freight. A professional freight companyarranges for trucks to collect goods, delivering them to the designated port for secure warehousing.Finally, goods are transported by sea to the customer's specified port, where collection is facilitated with a bill of lading.
Mingtuo Electric Mingtuo Electric shines as a prominent force, not only in the domestic landscape but also on the global stage, making significant strides internationally. Our products are a staple in various sectors such as construction, industry, and energy. They've become a trusted choice for numerous prestigious engineering projects worldwide.
The company adheres to the distinguished principle ofplacing the customer first, prioritizing quality, delivering unparalleled service, and maintaining an impeccable reputationwhile passionately embracing the concept of continuous innovation and forward-thinking development. The company boasts unmatched technical prowess, cutting-edge production technology, and a wealth of seasoned expertise in research and development. Renowned for our professionalism and technological dominance, we feature a comprehensive suite of the most advanced production, testing, and inspection equipment available in China.
FAQ
Q: What is the product voltage/current range? What is its exceptional breaking ability?
A: For detailed specifications, please consult our dedicated customer service team.
Q: What is the MOQ? Can sample orders be placed?
A: Our minimum order quantity is a single set, and we are pleased to support sample ordering to meet your precise needs.
Q: What is the warranty period? How can I apply for warranty service?
A: Enjoy peace of mind with our one to two-year product warranty. Simply reach out directly to our customer service for any warranty applications.
Q: Do you have CE, RoHS, UL, and other certifications? Can you provide these certificates?
A: Yes, we proudly hold CE and RoHS certifications and can promptly provide these certificates upon request.
Q: Does the price include tax and shipping costs?
A: Please note that our pricing excludes shipping and tax.
Q: What are some renowned clients or project collaborations you have been involved with?
A: We have had the honor of collaborating with esteemed clients such as the State Grid of China, Chint Group, and Xiaomi Group.
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