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CBRB7 Miniature Circuit Breakers (MCBs) - Reliable Overload Protection from China Suppliers & Factory
Applications
Switching on, switching off, and isolating circuits under load.
Operating Environment
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Ambient Temperature: -5℃ ~ +40℃
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Altitude: ≤2000m
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Relative Humidity: ≤95%
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Mounted on standard TH35mm DIN rail
Technical Parameters
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Standards: IEC60947-3, GB14048.3
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Operational Voltage: AC230V/400V
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Short-Time Current: 24In/1s
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Mechanical Endurance: 10000 operations
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Enclosure: Mineral-based, V0 Flame Retardant
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
Frequently Asked Questions (FAQ)
What is the operating temperature range for the CBRB7 Miniature Circuit Breaker?
The CBRB7 MCB is designed to function effectively in ambient temperatures ranging from -5℃ to +40℃, making it suitable for residential, commercial, and industrial applications.
What installation method is required for the CBRB7 MCB?
The CBRB7 Miniature Circuit Breaker is designed to be mounted easily on a standard TH35mm DIN rail, ensuring quick installation and compatibility with standard electrical panels.
Which standards do the CBRB7 comply with?
The device complies with international safety and quality standards, specifically IEC60947-3 and GB14048.3.
What is the breaking capacity of the CBRB7 MCB?
The breaking capacity is 10kA for rated currents between 6A and 63A, and 6kA for rated currents between 80A and 125A, at an operational voltage of AC 230V/400V.
What material is used for the enclosure of the CBRB7 MCB?
The shell is constructed from a high-quality mineral-based material that provides excellent strength and features a V0 flame retardant rating for enhanced fire safety.
What is the mechanical durability of this circuit breaker?
The CBRB7 Miniature Circuit Breaker is built for longevity and has a mechanical endurance rating of 10,000 operations.