40A Electronic Residual Current Circuit Breaker
This residual current operated circuit breaker is suitable for AC 50Hz, rated voltage single pole two lines 230V, rated current to 40A line. The circuit breaker has overload and short circuit protection functions, and can also be used as an infrequent conversion start of the line under normal conditions.
Technical Specifications
Product Overview
Safety and Protection
The CQB91LE-40 residual current operated circuit breaker is designed for AC 50Hz electrical systems, offering comprehensive protection for both personnel and equipment. It features integrated overload and short-circuit protection, capable of rapidly cutting off power supply during leakage or fault conditions. This versatile device is suitable for protecting lines or motors and supports infrequent conversion starts under normal operating conditions.
Electrical Specifications
Available Rated Currents
- 6
- 10
- 16
- 20
- 25
- 32
- 40
Rated Breaking Capacity
- Rated Voltage
- 230 V
- Pole Configuration
- 1P+N
Protection Features
Leakage Characteristics
Tripping Curves
- Rated Tripping Currents
- 10mA30mA100mA
Durability and Environment
Service Life
| Type | Minimum Cycles |
|---|---|
| Mechanical | 6,000 |
| Electrical | 4,000 |
- Protection Class
- IP20
- Pollution Degree
- 2
Installation Requirements
Conductor Cross-section
| Rated Current (A) | Cross-section (mm²) |
|---|---|
| 6-16 | 2 |
| 20-25 | 2.5 |
| 32-40 | 4 |
Compliance
- Compliance Standards
- GB/T16917.1IEC61009-1
