High Quality Moulded Case Circuit Breakers Mtm3 250A 3p Overload Short Circuit Voltage Protection MCCB

• Customization: Available
• Breaking Capacity: Low Voltage Circuit Breakers
• Operation: Electric Type
• Model NO.: MTABB
• Installation: Fixed
• Structure: MCCB
• Poles Number: 3/4 Pole
• Type: Circuit Breaker
• Function: Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection, OVP(Overvoltage Protection), RCCB
• Certification: CE, RoHS
• Transport Package: Carton Packaging
• Specification: 42*33.5*21.5
• Trademark: Mingtuo
• Origin: Zhejiang, China
• HS Code: 8536200000
• Production Capacity: 5000pieces/Year

Product Description

 

Product Description

 

Working principle:

When the current is overloaded, the bimetallic strip expands due to the heating caused by the current, and the difference in expansion coefficients between different metal layers leads to bending.

When the bending reaches the threshold, it pushes the release rod, releases the spring energy, separates the contacts, and mechanically trips;

When the current is short circuited, a falling wheel magnetic force is generated at the bottom of the electromagnetic coil, attracting the armature to collide with the release rod.
 

 

Detailed Photos

Product quality:
 

The shell frame is made of flame-retardant and high-temperature resistant materials, and the dynamic and static contacts are made of purple copper and silver plated materials.

The dynamic and static contacts are made of silver alloy material, which has high conductivity and resistance to arc erosion.

All products undergo a series of tests before being sold, such as instantaneous testing, delayed testing, etc., to ensure that the appearance and functionality of the product are intact before being sold

Company Profile

 

Mingtuo Electrical Technology Co., Ltd specializes in plastic case/frame circuit breakers, switch disconnectors, VS1 vacuum breakers, and OEM/ODM services.

Guided by "Technology-Driven Innovation, Quality-First Branding", we integrate advanced manufacturing, expert engineering, and digital management to deliver cutting-edge solutions.
 

Serving power systems, smart infrastructure, transportation, medical, finance, and commercial sectors, our globally certified (CE/ROHS) products are exported to 50+ countries.

 

 

Certifications

 

 

Packaging & Shipping

 

 

FAQ

Q1: How to use this product?
A1: Please refer to the product user manual or officialwebsite The user manual provides a detailed introduction to the product's functions and usage methods.

Q2: Why choose our company?
A2: We combine advanced R&D capabilities, precision manufacturing technology, and 20+ years of industry expertise to ensure tailored solutions.

Q3:What are the advantages of the product?
A3:Our products have undergone multiple debugging and testing,with a variety of testing reports,high safety 

Q4:What are the main products of the company?
A4: Specialized in MCCB, ACB, Contactor, isolating switches, Waterproof socket box, VS1 series vacuum breakers, and OEM/ODM customization services.