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China Suppliers Factory ARXM3 Series Thermal Magnetic Moulded Case Circuit Breaker 400VAC 3/4 Poles 200A-400A

Rated Current: Available in 200A, 225A, 250A, 280A, 315A, and 400A, our high-performance circuit breakers are designed to meet various industrial needs.

Number of Poles: Choose from 3P or 4P configurations to suit your electrical system requirements.

Rated Working Voltage: Our circuit breakers are rated for 400V and 690V, ensuring reliability and safety in demanding applications.

As a leading supplier and factory based in China, we specialize in manufacturing high-quality electrical components that meet international standards. Our commitment to excellence makes us a trusted choice for customers seeking durable and efficient circuit breakers.

Product Detail

Product Advantages

MCCB Highlights

ARXM3 series thermal magnetic type mccb advantages:

Surface treatment and processing technology of mechanism parts:
QPQ heat treatment technology imported from Germany

We selected the operating mechanism (steel) of AceReare Electric and another brand sample to compare the experimental results.
The operating mechanism of AceReare Electric has a hardness of 366.1, while the hardness of the other brand is only 252.6, which cannot even reach our lowest value.

The mechanical life and electrical life are very important indicators in the national standard of the circuit breaker, and our circuit breaker operating mechanism needs to reach a certain strength and hardness, so that the circuit breaker will not damage the service life of the circuit breaker in the opening and closing process, while the hardness of the other brand is far lower than the CQC standard.

ARxM3

Frequently Asked Questions (FAQ)

What surface treatment technology is used in the ARXM3 series MCCB?

The ARXM3 series thermal magnetic type MCCB utilizes QPQ heat treatment technology imported from Germany for the surface treatment and processing of its mechanism parts.

How does the hardness of AceReare Electric's operating mechanism compare to other brands?

AceReare Electric's operating mechanism features a hardness rating of 366.1, whereas the tested competitor brand reached only 252.6, which is below our minimum standard value.

Why is the hardness of the operating mechanism important for circuit breakers?

A high level of strength and hardness ensures that the operating mechanism does not sustain damage during the opening and closing processes, preserving the overall service life of the circuit breaker.

What are the key indicators for circuit breakers in the national standard?

Mechanical life and electrical life are critical performance indicators defined by the national standard for circuit breakers, both of which rely heavily on the strength of the operating mechanism.

Do lower-hardness operating mechanisms meet industry standards?

No, operating mechanisms with lower hardness ratings (such as 252.6) fall far below the CQC standard requirements, potentially compromising the lifespan and reliability of the circuit breaker.