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.

Key Features

● Wide Current Range

It can handle 63A–1600A, thus being able to serve the energy supply systems of small businesses as well as large industrial distribution networks.

● High Breaking Capacity

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.

● Multi-Protection Function

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

● Flexible Installation

Supports vertical, horizontal, and plug-in installation without affecting performance. Convenient for users to operate.

● Compact & Durable

Designed in a small footprint with a solid construction for long-term use in the harsh environment.

● International Compliance

It is in full compliance with IEC60947-2 and GB14048.2 standards.

Quick Details

Product raw material advantages

• 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

• The shell material is flame-retardant, with multiple shell frames to choose from：125-1600A

General Information

• Place of Origin: 5th Floor, No. 3 Jinghong West Road, Liushi Town, Yueqing, Wenzhou, Zhejiang, China
• Brand Name: MINGTUO
• Model: MCCB MTM1-63A-1600A
• Certification: ISO, CE, RoHS

Product Inspection

Overload and short circuit debugging

Commercial Terms

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

Operating Environment Requirements

1. Ambient Temperature

• Maximum: +40°C
• Minimum: –5°C (−10°C or −25°C requires user confirmation)
• The 24-hour average cannot be more than +35°C

2. Altitude

The location of the installation should be less than or equal to 2000m above sea level.

3. Atmospheric Humidity

• Maximum relative humidity: 50% at +40°C
• Humidity can rise to 90% in the wettest months at +25°C
• Condensation caused by temperature changes should also be taken into consideration.

4. Protection Rating

• IP30

5. Utilization Category

• Class A 

6. Installation Category

• Main circuit and undervoltage release: Category N
• Auxiliary/control circuits: Category III

7. Installation Requirements

• The installation must be done according to the product manual.
• The maximum allowable vertical tilt is 5° (15° for mining-type breakers).

Application Scope

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

Advantages

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).

Product dimension drawing

MTM1-125	MTM1-250	MTM1-400
MTM1-630	MTM1-800	MTM1-160

Key​‍​‌‍​‍‌​‍​‌‍​‍‌ application scenarios include:

- Main power distribution panels,Motor control centers and starter panels

- Generator protection systems,Industrial machinery power supplies

- Commercial building electrical systems,Renewable energy installations

Production line

1.Parts Preparation and Inspection Area

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.

2.Sub component assembly line

• Assembly of Contact and Arc Extinguishing System: Precise assembly and inspection of static contacts, moving contacts, flexible connections, arc extinguishing grids, etc. by manual or mechanical means.
• Assembly of operating mechanism: Assemble dozens of parts such as handle, connecting rod, jump buckle, lock buckle, etc. into a high-precision mechanism module and conduct flexibility testing.
• Assembly of release: Calibration and packaging of thermal magnetic release or electronic release.

3.Main assembly line

Assemble the main modules such as plastic bottom shell, mechanism module, contact arc extinguishing system, release device, and outer shell.

4.Online detection and debugging workstation

• Instantaneous characteristic test: Apply several times the rated current to test whether the short-circuit instantaneous trip operates within the specified time.
• Delay characteristic test: Apply overload current and test whether the inverse time delay trip curve is qualified.

5. Laser marking and packaging

Laser mark the qualified products with model, current, production date, etc., then pack them into attachments and instructions, and finally pack them into boxes.

Packaging

-Inner packaging

Shockproof material

Material: foam, bubble film, etc
Placement: Place evenly around the circuit breaker, at the top and bottom

-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.

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.