MOLDED CASE CIRCUIT BREAKER (MTNSX)
100,160,250,400,630,800,1000,1250,1600
The MTNSX series The molded case circuit breaker (MCCB) is a pioneering electrical protection marvel, lauded for its outstanding performance in a multitude of industrial, commercial, and infrastructural environments. This cutting-edge solution boasts a plethora of exceptional core features, including:
1. High segmentation capability: Boasting an unparalleled breaking capacity, this unit ensures robust protection against short circuits and overload scenarios, safeguarding the integrity and dependability of your entire electrical network.
2. Modular design: Offers flexibility with an array of functional modules (such as leakage protection, communication modules, etc.), meeting diverse needs and significantly boosting adaptability.
3. Precise protection: Featuring either thermal magnetic or electronic release mechanisms, it delivers precise and unfailing protection against overload, short circuit, and ground fault incidents.
4. Compact structure: Its innovative design is tailored for compact spaces, making it an ideal choice for densely packed distribution cabinets, enhancing installation proficiency.
5. Intelligent function: Equipped with advanced communication interfaces (such as Micrologic), this breaker facilitates effortless remote monitoring and comprehensive energy management solutions.
6. High durability: Engineered with premium materials and the latest technology, it guarantees unparalleled durability and consistent, superior performance over time.

-RATED CURRENT: Offering an impressive range, ensuring you have the flexibility and adaptability required for varied applications.
MTNSX-100 |
In(A) |
12.5,16,20,25,32.40.50.63.80,100 |
MTNS-800 |
In(A) |
800 |
MTNSX-160 |
In(A) |
16.20.25.32.40.50.63.80.100.125.160 |
MTNS-1000 |
In(A) |
1000 |
MTNSX-250 |
In(A) |
160,180,200,225,250 |
MTNS-1250 |
In(A) |
1250 |
MTNSX-400 |
In(A) |
315, 350, 400 |
MTNS-1600 |
In(A) |
1600 |
MTNSX-630
|
In(A) |
400,500,630 |
|
|
|
-THERMAL MAGNETIC RELEASE: Meticulously engineered to guarantee unmatched performance and safety, providing peace of mind and optimal operation.
T: Featuring seamless adjustability for precise and meticulous control (0.8~1ln).adjustable (0.8~1ln): Facilitates tailored performance, allowing customization to match your precise requirements for efficiency and accuracy.
M: Boasts a dynamic adjustable range designed for superior enhanced functionality and performance (5~10ln). adjustable (5~10ln): Ensures maximum efficiency and unwavering reliability, meticulously tailored to your unique needs for peak performance.
Installation Instructions
- Ensure secure installation inside the panel for optimal performance.
Installation method:
Fixed installation
Distribution box: Carefully install inside the distribution box to ensure maximum stability and durability.
Vertical installation
Direction: Typically installed vertically, with the operating handle facing upwards for ease of access and operation.
Avoid: Inverted installation is discouraged unless explicitly permitted by the product guidelines.
Connection
Power cord:Securely connect to the input terminal of the circuit breaker (labeled as 'L1', 'L2', 'L3') ensuring reliable power flow.
Load line: Connect to the output terminal (labeled as 'T1', 'T2', 'T3') for smooth load distribution.
Grounding wire:If available, the grounding terminal must be firmly connected to ensure safety.
Distance requirements
Spacing: Maintain ample distance from other devices to facilitate excellent heat dissipation and ease of maintenance.
Reference: For precise spacing guidelines, please consult the product manual.
Safety precautions
Power off operation: Power must be securely turned off during installation to effectively prevent electric shock hazards.
Protective equipment:Ensure the use of insulated gloves and goggles for personal protection.
Standard compliance:Adhere strictly to electrical installation specifications to ensure safe and compliant operations.
- Meticulous Factory Testing: A rigorous process to guarantee quality.
Comprehensive Mechanical Operation Testing: Thorough evaluation to confirm flawless mechanical performance.
Content: Execute multiple operations on the circuit breaker to ensure an unwavering commitment to excellence. Smooth Opening: Seamless operation is a hallmark of our design. and Secure Closing: Ensuring a safe and solid closure every time. with utmost flexibility and reliability. Engineered for perfection, our circuit breakers deliver precision and dependability.
Insulation Resistance Test: A critical examination to maintain safety and performance.
Content: Employ an advanced insulation resistance tester: Utilizing state-of-the-art technology for unparalleled accuracy. to meticulously evaluate the insulation resistance between each pole of the circuit breaker as well as between the pole and its protective casing: Ensuring secure insulation integrity throughout the system.
Voltage Withstand Test: A stringent assessment to verify durability under stress.
Content: Administer a high voltage (typically twice the rated voltage plus an additional 1000V) for: A testament to the breaker's robustness. a duration of 1 minute: Observing resilience in high-pressure scenarios. and vigilantly observe for any breakdown phenomena: Constant monitoring for uninterrupted safety.
Temperature Rise Test: Precision evaluation to ensure optimal thermal performance.
Content: Operate at the designated rated current: Testing under realistic operational conditions. and accurately measure the temperature increase: Critical insights into heat management. at the terminal and contact points of the wiring: Ensuring the stability and reliability of every connection.
- Practical On-Site Testing: Real-world validation of performance.
Power-On Test: A definitive check of operational readiness.
Content: Verify that the circuit breaker can be trusted to operate flawlessly. reliably open and close: Ensuring consistent reliability in actual use. without issues once powered on: Assuring immediate functionality and peace of mind.
Protection Function Test Suite: A comprehensive suite to confirm protection capabilities.
Overload Protection Assessment: A critical evaluation to secure against excess demand. Conduct a simulated overload scenario: Testing ensures prompt, effective response. to confirm the circuit breaker triggers a trip within the specified timeframe: Guaranteeing your protection is unwavering.
Short Circuit Protection Evaluation: Confirming rapid protective action in emergencies. Engage in a simulated short circuit event: Stress-testing for immediate response. to ensure the circuit breaker responds with immediate tripping action: Prioritizing safety with instant action.
-Inner Packaging
Our inner packaging is crafted from premium shockproof materials that envelop your product, ensuring exceptional protection throughout transit.
Material: We employ innovative foam and bubble film, among other advanced solutions.
Placement: These materials are strategically positioned to completely envelop the Advanced Circuit Breaker, offering comprehensive security from top to bottom.
-External Packaging
We use a sturdy carton
Material: Crafted from superior high-strength corrugated cardboard, providing robust support and protection.
Carton Sealing
Method: We employ a robust sealing technique utilizing durable tape or secure strapping, ensuring enduring integrity.
Requirement: Our sealing method achieves an ironclad seal to effectively prevent any potential damage to the box.
Identification and Labeling
Content:The packaging includes detailed product information such as model, precise quantity, weight, manufacturer details, and essential transportation labels (including indicators like fragile, upward, moisture-proof, etc.)
Location: These details are prominently displayed on the exterior of the cardboard box, ensuring effortless and quick identification.
Our Production Line: Expertly designed for seamless operations, our production line is optimized for peak productivity and efficiency.
Transport
Domestic Transportation
We utilize your chosen freight forwarder in China, expertly managing delivery to your specified location via road transportation or rapid domestic express delivery once production is completed.
International Transport
For smaller shipments requiring swift delivery to your specific international destination, we collaborate with top-tier international express services like
DHL, FEDEX, and UPS.
Sea Freight/Air Freight
For bulk shipments where time allows, we recommend opting for sea freight. We partner with a reputable freight company, managing truck pickup and delivery to the designated port for warehousing.Once the goods have traversed the seas, they arrive at your nominated port, ready for pickup with a bill of ladingfor smooth processing.
Mingtuo Electric Mingtuo Electric stands as a beacon of excellence, revered not only within China's borders but also making remarkable strides globally. Our products are indispensable assets in key sectors like construction, industry, and energy. They have garnered widespread recognition, being integral to high-profile engineering projects worldwide, thanks to our unwavering commitment to quality and innovation.
The company steadfastly adheres to the revered principle ofplacing customers at the forefront, ensuring superior quality, delivering unmatched service, and maintaining an impeccable reputation.while perpetually embracing a dynamic philosophy of innovation and progress. Our company is distinguished by profound technical prowess, state-of-the-art production methodologies, and vast experiential knowledge in leading-edge research and development, celebrated for our specialization and pioneering technological advancements. We are equipped with an extensive suite of China's most sophisticated production, testing, and inspection apparatus.
FAQ
Q: What is the product voltage/current range? What's the breaking ability?
A: For comprehensive specifications, please connect with our dedicated customer service team who will be delighted to assist you with detailed information.
Q: What is the MOQ? Do you support sample ordering?
A: Our minimum order quantity is just 1 set, and we are pleased to offer support for sample orders to meet your needs.
Q: How long is the warranty period? How to apply for warranty?
A: The product is backed by a warranty period ranging from one to two years. Warranty applications can be effortlessly processed via our customer service.
Q: Do you have CE, RoHS, UL and other certifications? Can you provide a certificate?
A: We proudly hold CE and RoHS certifications, and we can promptly provide these certificates upon your request.
Q: Does the price include tax/shipping?
A: Kindly be advised that our listed prices do not include shipping and tax charges.
Q: What famous clients or project cases have you worked with?
A: We have had the honor of collaborating with prestigious clients such as the State Grid of China, Chint Group, and Xiaomi Group, illustrating our excellence and trustworthiness.