Residual current circuit breaker 3P+N 63A 30mA 10kA B+ CDB663D

### Safety and protection in your installation

Hager CDB663D residual current circuit breaker is a key element ensuring safety in electrical installations. The device is designed to protect people and equipment from the effects of electric shock and failures caused by short circuits and overloads. The 3P+N (three-phase plus neutral pole) design makes it suitable for protecting three-phase circuits, commonly used in homes, commercial buildings and industry.

Functionality and parameters

The circuit breaker is characterized by a rated current of 63A and a sensitivity of 30mA, which means it reacts to very small leakage currents, providing fast protection. The short-circuit breaking capacity at 10kA guarantees effective disconnection of the circuit in the event of a serious failure. Characteristic B+ provides optimal selectivity and minimizes the risk of unnecessary tripping of the installation during short-term loads. Mounting is done on a standard DIN rail, which facilitates installation and replacement of the device.

For the installer – quick installation and reliable operation

Mounting on a DIN rail is a standard that saves time. The width of 4 modules allows for efficient use of space in the switchgear cabinet. Screw terminals allow connection of wires with a cross-section from 1 mm² to 25 mm² (solid) and from 1 mm² to 16 mm² (stranded), ensuring compatibility with various types of wires. Additionally, a mechanical lock prevents accidental opening of the circuit breaker during operation. The rated insulation voltage Ui is 400V and the rated impulse withstand voltage Uimp is 4kV, which ensures a high level of safety.

For the user – peace of mind and reliability

This residual current circuit breaker is a guarantee of safety for the whole family. Fast reaction to leakage currents minimizes the risk of electric shock, and high short-circuit breaking capacity protects devices from damage. Solid construction and high quality workmanship ensure long-lasting and trouble-free operation of the device for many years. The device operates in a temperature range from -25°C to 70°C, making it suitable for use in various environmental conditions. Power losses are only 9.29W, which translates to energy savings.