CQB5aL-63 4.5kA Residual Current Operated Circuit Breaker with Over-current Protection
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The CQB5aL-63 4.5kA Residual Current Operated Circuit Breaker is designed for robust safety and protection in various electrical installations. This high-quality device not only offers overload and short circuit protection but also safeguards individuals from indirect contacts and provides additional protection against direct contacts. It is engineered to prevent fire hazards due to insulation faults, making it a vital component for industrial, commercial, high-rise, and civil residences circuit protection. The circuit breaker is available in a wide variety of rated tripping currents, ensuring it meets diverse applications and requirements.
Specifications
| Specification | Details |
|---|---|
| Rated voltage (V) | 230V~/400~ |
| Rated current (A) | 10, 16, 20, 25, 32, 40, 50, 63 |
| Rated sensitivity (mA) | 30, 50, 100 |
| Rated residual non-operating current | 0.5 lrn |
| Poles | 1P+N, 2P, 3P+N, 4P |
| Rated breaking capacity (A) | 4500 |
| Rated residual making and breaking capacity (A) | 2000 |
| Mechanical & Electrical life | Mechanical ≥ 4000; Electrical ≥ 2000 |
| Pollution degree | 2 |
| Protection class | IP20 |
| Overvoltage category | Ⅲ |
| Standards | IEC61009-1, GB/T16917.1 |
| Compliant certification | CCC |
Additional Information
Order Specifications:
- A) Product models, e.g., CQB5aL-63
- B) Poles of circuit breakers, e.g., (1P+N)
- C) Rated current of circuit breakers, e.g., 16A, 20A, 25A
- D) Rated residual operating current, e.g., 30mA
- E) Order quantity, e.g., 100 pcs
Purchase Order Template: CQB5aL-63 1P+N C/16A 30mA 100pcs
Conductor Requirements and Cross-Sectional Area
| Rated current (A) | Nominal cross-sectional area (mm²) |
|---|---|
| ≤10 | 1.5 |
| 16~20 | 2.5 |
| 25 | 4 |
| 32 | 6 |
| 40~50 | 10 |
| 63 | 16 |
Dimensions and Installation Sizes (mm)
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