China Suppliers Factory ARXM3 Series 400V/690V Thermal Magnetic MCCB 100A to 630A 3/4 Poles

Rated Current : Available in 400A, 500A, and 630A configurations, ideal for various industrial applications.

Number Of Poles : Choose between 3P (three poles) and 4P (four poles) options to suit your electrical system requirements.

Rated Working Voltage : Designed for safety and efficiency at rated working voltages of 400V and 690V.

As a leading China manufacturer and supplier, our factory guarantees high-quality circuit breakers that meet international standards. With customizable options and robust performance, our products are built to serve diverse industrial needs while ensuring reliability and safety.

Product Description

MCCB Highlights

Product structure of ARM3 thermal magnetic type circuit breaker
  • Safety:

    It can directly disassemble the upper cover of ARXM3 to install internal accessories.

  • Accessory Installation:

    Humanized design makes installation and replacement more convenient for on-site installation.

  • Superior Hardness:

    The operating mechanism features an outstanding hardness of 366.1, while typical competitor hardness is only 252.6, ensuring unmatched structural stability.

  • Enhanced Durability:

    High quality low carbon cold rolled steel treated with QPQ salt bath composite treatment improves wear, corrosion, and fatigue resistance, boosting parts strength and life by over 10%.

Frequently Asked Questions

Q: How is the safety of the ARM3 circuit breaker enhanced?

Safety is significantly improved because users can directly disassemble the upper cover of the ARXM3 to safely install internal accessories on-site.

Q: What makes the accessory installation of the ARXM3 user-friendly?

It features a humanized design layout, making the process of on-site installation and replacement of components much faster and more convenient.

Q: What is the hardness level of the operating mechanism?

The operating mechanism features a hardness level of 366.1, which is significantly higher than other brands that only reach 252.6.

Q: How does QPQ salt bath composite treatment benefit the MCCB parts?

The QPQ salt bath composite treatment applied to high-quality low-carbon cold-rolled steel greatly improves wear, corrosion, and fatigue resistance on the metal surface.

Q: By how much does the steel treatment improve the component lifespan?

The strength, mechanical life, and electrical life of the treated parts are improved by more than 10% compared to untreated components.

Q: What is the main design advantage of the ARM3 series MCCB?

The ARM3 series features an optimized structural layout designed for high safety, convenient on-site accessory replacement, and superior wear resistance.

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