MCCB/MOLDED CASE CIRCUIT BREAKER
Model meaning:
The MTM1 Series Molded Case Circuit Breaker (MCCB) is a high-end power system protection device specially designed for modern low-voltage power distribution networks. In an AC 50Hz network with a rated operational voltage up to 400V/690V and a rated insulation voltage up to 800V, it operates safely and reliably handling peak currents from 63A to 1600A. The device is mainly used for power distribution, equipment protection, and motor circuit protection purposes.
MTM1 MCCB, with its compact structure, strong breaking capacity, and short arc design, is capable of providing efficient protection against overload, short-circuit, and undervoltage situations. Both vertical and horizontal installations are possible for the breaker, thus allowing different panel layouts to be used. The product is tested and manufactured to the standards of IEC 60947-2, GB14048.2, and other related international standards, which guarantee safety and compliance during operation.
| Product Type | Molded Case Circuit Breaker (MCCB)，Thermomagnetic | Frame current | 125/250/400/630/800/1250/1600 |
| Poles | 2pole、3pole、4pole | Rated current | 63A-1600A |
| Rated voltage | AC400V/AC690V | Breaking capacity | 36KA-65KA |
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Copper bars and contacts:Copper silver plated conductive parts+silver alloy contacts, with stronger current carrying capacity, lower temperature rise, higher reliability and safety, excellent oxidation and corrosion resistance
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Cotactors:
The moving and fixed contacts are made of silver-plated tough pitch copper, while the contact points are crafted from silver alloy, offering high conductivity and excellent resistance to arc erosion.
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Copper bar:
The copper bar are made of silver-plated tough pitch copper, featuring a pure copper core electroplated with a silver layer. This ensures excellent corrosion resistance, oxidation resistance, and superior electrical conductivity.
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Flame-retardant Shell:
The shell material is flame-retardant, with multiple shell frames to choose from：125-1600A
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Overload and short circuit debugging
1.Instantaneous and time-delay trip tests are conducted to verify performance under overload and short-circuit conditions. The circuit breaker is tested to ensure reliable tripping at currents exceeding the rated value and up to 8 times the rated short-circuit current, thereby providing effective line protection.
2.Qualified technicians perform rigorous testing on each molded case circuit breaker before shipment to ensure proper closing and opening operations.
Testing equipment
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Item Details ：
Minimum Order :Quantity1 piece
Price：USD 20
Packaging：Carton
Delivery Time Within 15 days
Payment Terms:100% prepaid / 70%-30% / 80%-20%
Supply Ability:Always available
The MT-M1 Series MCCB is a perfect match for:
--Electrical distribution systems in factories and plants
--Power groups protection circuits in commercial buildings
--Motor control centers (MCC)
--Power distribution cabinets for the next generation of grid
--Machinery, manufacturing, and infrastructure sectors' power networks
--As the main switch installed in the waterproof socket box
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Usage scenarios
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1.Competitive pricing, factory quality assurance
2. Customizable housings
3. Extensive production and installation experience, ready to provide guidance
4. Assistance with commissioning and selection
Technical specifications (a user manual and detailed specifications will be provided after purchase).
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| MTM1-125 | MTM1-250 | MTM1-400 |
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| MTM1-630 | MTM1-800 | MTM1-160 |
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Conduct pre production inspection, sorting, and distribution of purchased or self-produced parts such as contact systems, arc extinguishers, plastic casings, operating mechanisms, bimetallic sheets, coils, screws, etc.
Assemble the main modules such as plastic bottom shell, mechanism module, contact arc extinguishing system, release device, and outer shell.
Laser mark the qualified products with model, current, production date, etc., then pack them into attachments and instructions, and finally pack them into boxes.
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-Inner packaging
Shockproof material
Material: foam, bubble film, etc
Placement: Place evenly around the circuit breaker, at the top and bottom
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-External packaging
carton
Material: High strength corrugated cardboard box
Carton sealing
Method: Seal with tape or strapping
Requirement: Ensure a secure seal to prevent cracking of the box
Identification and labeling
Content:Product model, quantity, weight, manufacturer, transportation label (such as fragile, upward, moisture-proof, etc.)
Location: Clearly printed on the outside of the cardboard box.
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Q: What is the voltage/current range of this product? What is its breaking capacity?
A: Please contact customer service for details.
Q: What is the minimum order quantity? Do you accept sample orders?
A: The minimum order quantity is 1 set, and we accept sample orders.
Q: What is the warranty period? How do I apply for a warranty?
A: The product warranty is 1 to 2 years. Please contact customer service directly to apply.
Q: Do you have CE, RoHS, UL, or other certifications? Can you provide certificates?
A: We have CE and RoHS certifications and can provide certificates.
Q: Does the price include tax/shipping?
A: The price does not include shipping/tax.
Q: What notable clients or project examples have you worked with?
A: State Grid Corporation of China, Chint Group.
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- Main power distribution panels,Motor control centers and starter panels
- Generator protection systems,Industrial machinery power supplies
- Commercial building electrical systems,Renewable energy installations
It can handle 63A–1600A, thus being able to serve the energy supply systems of small businesses as well as large industrial distribution networks.
Designed to safely and quickly cut off fault currents, ensuring the safety of the entire system. The breaking capacity is 36KA/50KA, which can safely cut off fault currents, protect electrical equipment and lines, and maintain the stability of the power system.
Equipped with overload and short circuit protection functions; It can also be used for infrequent motor start-up, ensuring the safe and stable operation of the power system
Supports vertical, horizontal, and plug-in installation without affecting performance. Convenient for users to operate.
Designed in a small footprint with a solid construction for long-term use in the harsh environment.
It is in full compliance with IEC60947-2 and GB14048.2 standards.
Copyright © Zhejiang Mingtuo Electric Technology Co., Ltd.
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