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Why Should You Choose the CFB2sLE-63 RCCB Earth Leakage Circuit Breaker for Reliable Electrical Protection?

2025-12-05

Choosing the right residual current device is essential for ensuring electrical safety in homes, commercial buildings, and industrial applications. The CFB2sLE-63 RCCB Earth Leakage Circuit Breaker stands out as a dependable, efficient, and widely compatible solution that meets modern protection standards. This article explores what makes this model unique, how it works, where it excels, and why it has become a preferred choice for users and engineers worldwide.

CFB2sLE-63 RCCB Earth Leakage Circuit Breaker


What Makes the CFB2sLE-63 RCCB Earth Leakage Circuit Breaker Different?

The CFB2sLE-63 model is designed to provide comprehensive leakage protection by detecting residual currents and disconnecting circuits instantly. Unlike standard MCBs, which protect primarily against overcurrent, RCCBs safeguard human life and equipment by preventing electric shock hazards and fire risks due to insulation failure.

Key features include:

  • Fast leakage detection

  • High sensitivity and reliability

  • Wide range of rated currents

  • Compact design suitable for modern distribution boards

  • Compliance with international safety standards

  • Long mechanical and electrical lifespan


How Does the CFB2sLE-63 RCCB Earth Leakage Circuit Breaker Improve Electrical Safety?

The device constantly monitors the balance of current between live and neutral conductors. When a leakage occurs—caused by accidental contact, fault wiring, or equipment insulation failure—the breaker trips immediately, preventing dangerous conditions.

Main safety benefits include:

  • Human protection: Immediate disconnection minimizes electrical shock risk.

  • Fire prevention: Detects insulation failures early before overheating occurs.

  • Equipment safety: Protects sensitive appliances from fault currents.

  • System reliability: Enhances overall stability in residential and commercial networks.


Which Technical Parameters Define the Performance of the CFB2sLE-63 RCCB Earth Leakage Circuit Breaker?

Below is a clear parameter overview to help users and engineers understand the product's performance:

Product Parameters (Overview List)

  • Rated current (In): 16A / 25A / 32A / 40A / 50A / 63A

  • Rated voltage (Ue): 230V / 400V AC

  • Rated residual operating current (IΔn): 30mA, 100mA, 300mA

  • Breaking capacity: 6kA

  • Type: AC / A type leakage protection

  • Poles available: 2P / 4P

  • Frequency: 50/60Hz

  • Standard compliance: IEC/EN 61008

  • Mechanical life: ≥ 4,000 operations

  • Electrical life: ≥ 2,000 operations


Technical Data Table

Parameter Specification
Rated Current 16A–63A
Rated Voltage 230/400V AC
Leakage Sensitivity 30/100/300mA
Breaking Capacity 6kA
Pole Options 2P, 4P
Protection Type AC / A
Frequency 50/60Hz
Standard IEC/EN 61008

Why Is the CFB2sLE-63 RCCB Earth Leakage Circuit Breaker Essential for Modern Installations?

Modern buildings require enhanced safety measures to handle increasingly complex electrical loads. The CFB2sLE-63 RCCB Earth Leakage Circuit Breaker provides reliable fault detection, meets global safety standards, and supports a long service life. Its compact design makes it ideal for both new installations and system upgrades.

Reasons it is essential:

  • Prevents life-threatening shocks

  • Reduces costly downtime

  • Enhances electrical reliability

  • Meets mandatory safety requirements in many regions

  • Works seamlessly with other devices from Shanghai FATO Group Co.,Ltd.


FAQ About the CFB2sLE-63 RCCB Earth Leakage Circuit Breaker

Q1: What applications are suitable for the CFB2sLE-63 RCCB Earth Leakage Circuit Breaker?
A1: It is suitable for residential power systems, commercial buildings, small industrial facilities, and any distribution board requiring leakage and shock protection.

Q2: How often should a CFB2sLE-63 RCCB Earth Leakage Circuit Breaker be tested?
A2: It should be tested monthly using the "TEST" button to ensure proper tripping performance and maintain long-term reliability.

Q3: What is the advantage of choosing a 30mA sensitivity for the CFB2sLE-63 model?
A3: The 30mA sensitivity offers enhanced human protection by quickly detecting small leakage currents, making it ideal for home and office electrical systems.

Q4: Can the CFB2sLE-63 RCCB Earth Leakage Circuit Breaker be used with other protective devices?
A4: Yes, it can be combined with MCBs, surge protectors, and distribution accessories from Shanghai FATO Group Co.,Ltd., ensuring full-system protection.


Contact Shanghai FATO Group Co.,Ltd.

For more technical details, customized solutions, or bulk purchasing of the CFB2sLE-63 RCCB Earth Leakage Circuit Breaker, please contact Shanghai FATO Group Co.,Ltd. Our engineering team is ready to support your electrical protection needs professionally and efficiently.

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