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 |
Product Features:
Δ High-Temperature Resistant & Flame-Retardant Casing: This advanced casing ensures that the air circuit breaker remains intact and safe even under extreme temperature conditions, providing peace of mind with its robust flame-retardant properties.
Δ Copper-Plated Silver Alloy Contacts (Dynamic/Static): Engineered for excellence, these dynamic and static contacts are crafted with copper-plated silver alloy, ensuring unmatched electrical connectivity and reliability.
Δ Silver Alloy Contacts (High Conductivity & Superior Arc Resistance): Experience the pinnacle of performance with our silver alloy contacts that offer exceptional conductivity while resisting the harshest of arcs, maintaining operational integrity.
Δ Thick Copper-Plated Silver Busbars (Standard In/Out Terminals): Designed for durability and efficiency, these busbars are equipped with standard in/out terminals, featuring thick copper-plating for enhanced electrical performance and longevity.
Δ PCB Reliability (48-Hour Aging Test Verified): Our meticulous 48-hour aging test ensures that the PCB board within the breaker holds up under intense conditions, proving its reliability and readiness for any challenge.
Installation Instructions
·Our MTN and MTH800A to 6300A (excluding 4000A) models are engineered to feature the same robust and reliable connection terminals,;
No additional space is required for front connections, as the innovative design ensures the terminals do not increase the depth of the circuit breaker,
·For seamless integration onto horizontal or vertical busbars, effortlessly rotate the connection terminal a full 90 degrees to fit your configuration needs.
Mechanical Operation Test: Ensuring Smooth and Reliable Mechanism
Carefully examine whether the mechanical operation of the circuit breaker is flexible and reliable.
Thoroughly test operation functions such as closing, opening, and energy storage.
Electrical Performance Testing: Assuring Optimal Electrical Integrity
Insulation Resistance Test: Employ a megohmmeter to precisely measure the insulation resistance of both main and auxiliary circuits, confirming adherence to standards (typically ≥ 1M Ω).
Power Frequency Withstand Voltage Test: Apply the standard rated power frequency voltage (such as 2500V/1min) to both main and auxiliary circuits to thoroughly assess insulation performance.
Contact Resistance Test: Accurately measure the contact resistance of the main contact to guarantee it remains below the specified threshold (generally at the micro ohm level).
Protection Function Test: Ensuring Robust and Reliable Protection
Test and confirm the action values and timely response of protection functionalities such as overload, short circuit, and ground fault.
Verify and validate the settings andfunctionality of the intelligent release device, ensuring peak performance and safety.
Outer packaging:
Durable and robust wooden boxes are typically employed to ensure exceptional mechanical strength.
Wooden crates are ideal for accommodating large circuit breakers or for international shipping demands.
Inner packaging:
Embrace the circuit breaker with protective cushioning materials such as foam pads, bubble films or pearl cotton to effectively absorb shocks and prevent any vibrations or collisions.
For larger circuit breakers, consider a sophisticated layered packaging design, where accessories (including manuals, tools, and spare parts) are conveniently placed on the upper layers.
Domestic transportation
Should a designated freight forwarder be utilized within China, we ensure seamless delivery to the specified location through road transportation or domestic express courier services upon completion of production.
International transport
For small shipments with tight deadlines to international destinations, we partner with the leading global express delivery giants to ensure timely arrival at the specified overseas location.We rely on top-tier international carriers such as
DHL, FEDEX, and UPS
Sea freight/air freight
For substantial shipments where time constraints are more flexible, sea freight becomes the preferred choice. We collaborate with a reputable freight companythat arranges for trucks to collect the goods and transport them to the designated port for secure warehousing. Finally, the goods are shipped by sea to the customer's specified port, where the customer retrieves their shipment using a bill of lading.
Mingtuo Electric has not only secured a prominent stance in the domestic landscape but is also strategically steering its course into the global arena. Our innovative products cater to diverse sectors including construction, industry, and energy, earning the unwavering confidence and admiration of numerous prestigious engineering enterprises.
The company upholds an unwavering principle ofplacing the customer at the forefront, prioritizing unparalleled quality, ensuring exemplary service, and maintaining an impeccable reputationalongside a steadfast commitment to the ethos of innovation and development. Our company boasts an impressive technical acumen, cutting-edge production capabilities, and a wealth of seasoned expertise in research and development. We are celebrated for our professionalism and pioneering technological prowess, supported by a state-of-the-art suite of production, testing, and inspection apparatus, unrivaled in China.
FAQ
Q: What is the product voltage/current range? What's the breaking ability?
A: For comprehensive details, please engage with our dedicated customer service team.
Q: What is the MOQ? Do you support sample ordering?
A: The minimum order quantity is 1 set, with provisions for sample ordering to accommodate your trial needs.
Q: How long is the warranty period? How to apply for warranty?
A: Our products come with a warranty spanning one to two years. For applications, please reach out directly to our customer service representatives.
Q: Do you have CE, RoHS, UL and other certifications? Can you provide a certificate?
A: We proudly hold CE and RoHS certifications, and are ready to provide the necessary documentation.
Q: Does the price include tax/shipping?
A: Kindly note that the listed price is exclusive of shipping and tax.
Q: What famous clients or project cases have you worked with?
A: We have collaborated with esteemed clients like the State Grid of China, Chint Group, and Xiaomi Group.
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