FMM3-PV DC MCCB

What is a DC MCCB?

A DC MCCB (Direct Current Molded Case Circuit Breaker) is a vital electrical protection device designed to safeguard electrical circuits in systems that operate on direct current (DC). Unlike AC circuit breakers that protect alternating current systems, a DC MCCB is specifically designed to manage the unique challenges associated with DC circuits, which have different electrical characteristics, such as constant current flow and the absence of zero-crossing points. This makes DC MCCBs essential in various applications, from solar energy systems to industrial setups.

The USFULL FMM3-PV DC MCCB is a high-quality and reliable product designed to ensure the safe and efficient operation of DC-powered electrical systems. The product’s robust design and superior features make it ideal for a wide range of applications, including solar farms, industrial projects, and home use.

USFULL FMM3-PV DC MCCB Product Details Show

In this picture, you can see the details of each part of the product. You can also see where the operating handle, firefroof shell, product parameters, trip button, mounting hole are located.

What Are the Advantages of the USFULL FMM3-PV DC MCCB?

The USFULL FMM3-PV DC MCCB offers several key features that distinguish it as a top-tier electrical protection device. Here’s a closer look at its advantages:

1.Insulated Terminals

The USFULL FMM3-PV DC MCCB is equipped with large hole threaded terminal rail-type wiring. This design ensures that connections are secure and safe, preventing any loose connections that could lead to electrical failures. The insulated terminals also enhance the overall safety by protecting users from accidental contact with live parts.

 

2.Tough In Harsh Environments

This DC MCCB is designed to withstand extreme conditions. The product is tested to perform in temperature ranges from -40°C to 70°C, making it suitable for environments with dry heat, wet heat, and cold temperatures. Whether it’s placed in freezing temperatures or exposed to high heat, this breaker continues to protect circuits without compromising performance.

3.Momentary Disconnect Protection Circuit

The USFULL FMM3-PV DC MCCB has an advanced momentary disconnect protection circuit, which is capable of cutting off power in less than 0.01 seconds. This rapid response time is critical for protecting sensitive equipment from electrical surges, short circuits, and other hazardous conditions, helping to prevent damage and ensure the safety of the system.

4. Flame Retardant Material

Safety is paramount, and the USFULL FMM3-PV DC MCCB uses flame retardant materials in its construction. This ensures that, even in the event of an electrical fault or fire risk, the circuit breaker will not contribute to the spread of flames, adding an extra layer of protection for both users and equipment.

5. Lightning Protection

The product is also equipped with lightning protection, making it highly reliable for outdoor applications, such as in solar power systems, where lightning strikes can pose a serious threat. The lightning protection feature ensures the circuit breaker can handle surge currents caused by lightning strikes, protecting the system from damage.

6. Rapid Power Off

In the event of a fault, the rapid power off function ensures that the electrical supply is immediately cut off. This minimizes the risk of fires, electrocution, or damage to other electrical components in the system.

7. High and Low Temperature Resistance

With high and low temperature resistance, the USFULL FMM3-PV DC MCCB is versatile enough to operate in a variety of climatic conditions. This makes it an excellent choice for both outdoor and indoor applications in diverse regions.

8. Short Circuit Protection

The short circuit protection feature of the USFULL FMM3-PV DC MCCB helps to prevent circuit damage and potential fires caused by short circuits. It detects faults in the circuit and quickly disconnects the power, minimizing potential hazards.

9. Overload Protection

Overload protection is essential to avoid overheating of electrical circuits. The USFULL FMM3-PV DC MCCB prevents damage caused by excessive currents by disconnecting the circuit when an overload is detected, ensuring the system remains safe under all conditions.

Below Are the DC MCCB Specifications

The USFULL FMM3-PV DC MCCB is designed with several key specifications that meet international standards. These specifications ensure that the product is suitable for a variety of DC applications, including renewable energy systems, industrial setups, and residential use.

 

Where the DC MCCB can be used?

The versatility of the USFULL FMM3-PV DC MCCB makes it an excellent choice for a wide range of applications. Here are some of the most common uses:

• Home Use: Protecting electrical circuits in residential buildings, especially in solar power systems and other renewable energy setups.
• Solar Lighting: Ensuring the safe operation of solar lighting systems, including off-grid solar applications.
• Solar Farms: Serving as an essential safety component in large-scale solar energy installations, protecting the system from electrical faults and ensuring continuous, safe operation.
• Industrial Projects: Used in industrial electrical systems to provide robust protection in heavy-duty applications that require high reliability and safety.

In addition to these, the USFULL FMM3-PV DC MCCB is a reliable choice for any DC-powered system where safety and efficient power management are critical.