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China CBRB7 Miniature Circuit Breaker (MCB) - Reliable Suppliers & Factory for Overload Protection

CBRB7 Miniature Circuit Breakers (MCBs) are vital components in contemporary electrical systems, offering dependable protection against overloads and short circuits. Manufactured in China, these high-quality MCBs are designed to function effectively within a wide ambient temperature range, making them suitable for various applications. Rated at AC230V/400V, the CBRB7 ensures safe and reliable operation of electrical circuits, mitigating potential hazards arising from electrical faults. As leading suppliers in the industry, our factory guarantees the production of premium MCBs that meet international standards for safety and performance

    Applications

    Switching on, switching off, and isolating circuits under load.

    Operating Environment
    • Ambient Temperature: -5℃~+40℃
    • Altitude: ≤2000m
    • Relative Humidity: ≤95%
    • Mounted on standard TH35mm DIN rail
    Technical Parameters
    • Compliance Standards: IEC60947-3 GB14048.3
    • Rated Operational Voltage: AC230V/400V
    • Short-Time Withstand Current: 24In/1s
    • Mechanical Endurance: 10000 operations
    • Enclosure Material: Mineral-based material
    • Flame Retardant Rating: V0

    Product Details

    One of the key features of the CBRB7 Miniature Circuit Breaker is its operational temperature range, which spans from -5℃ to +40℃. This wide temperature tolerance allows the MCB to function effectively in diverse environments, from residential settings to industrial applications. Additionally, the device is designed to operate at altitudes of up to 2000 meters, making it versatile for use in different geographical locations. The ability to withstand relative humidity levels of up to 95% further enhances its adaptability, ensuring that it can perform reliably even in challenging conditions.

    The CBRB7 MCB is installed on a standard TH35mm DIN rail, which simplifies the installation process and ensures compatibility with existing electrical systems. This design feature not only facilitates easy mounting but also promotes efficient use of space within electrical panels. Compliance with international standards such as IEC60947-3 and GB14048.3 underscores the product’s reliability and safety, assuring users that it meets stringent quality requirements. This adherence to established standards is crucial for professionals in the electrical field, as it guarantees that the device will perform as expected under various operational conditions.

    In terms of performance, the CBRB7 Miniature Circuit Breaker boasts a short-time withstand current rating of 24In for 1 second, which indicates its capability to handle temporary overloads without tripping. This feature is particularly important in scenarios where electrical surges may occur, allowing the circuit to remain operational while still providing protection against more severe faults. The mechanical durability of the CBRB7 MCB is rated at 10,000 operations, ensuring that it can withstand frequent use without compromising its functionality. This durability is a significant advantage for both residential and commercial applications, where reliability is paramount.

    The shell material of the CBRB7 Miniature Circuit Breaker is composed of a mineral-based material, which contributes to its overall strength and resilience. This material choice not only enhances the MCB’s durability but also ensures that it meets the flame retardant grade of V0, providing an additional layer of safety in the event of a fire. The combination of these features makes the CBRB7 MCB a dependable choice for those seeking to enhance electrical safety in their installations.

    Breaking Capacity

    Rated current (A) Voltage (V) Breaking capacity (kA)
    6~63 230/400 10
    80~125 230/400 6

    Overall Dimensions

    Overall dimensions
    Unit dimensions

    Frequently Asked Questions

    Q:What are the main applications of the CBRB7 Miniature Circuit Breaker?

    The CBRB7 MCB is designed for switching on, switching off, and isolating electrical circuits under load conditions.

    Q:What is the operating environment temperature range for this MCB?

    The device is built to operate reliably in ambient temperatures ranging from -5℃ to +40℃.

    Q:How is the CBRB7 Miniature Circuit Breaker mounted?

    It is designed for easy installation on a standard TH35mm DIN rail, making it compatible with standard electrical panels.

    Q:What compliance standards does this product meet?

    The CBRB7 MCB complies with the international safety and performance standards IEC60947-3 and GB14048.3.

    Q:What materials are used for the enclosure and what is its fire safety rating?

    The shell is made of a durable mineral-based material that provides high resilience and achieves a V0 flame retardant rating.

    Q:What is the mechanical durability of this circuit breaker?

    The CBRB7 MCB is rated for a mechanical endurance of up to 10,000 operations, ensuring long-term reliability.

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