Residual current circuit breaker 3P+N 125A 30mA 10kA AC CDC690

Safety and protection in your electrical installation

The 3P+N CDC690 residual current circuit breaker (RCCB) 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. Its solid construction and high parameters make it a reliable solution for both residential and commercial buildings.

Characteristics and application

The CDC690 RCCB is a four-pole (3P+N) device with a rated current of 125A and a sensitivity of 30mA. This means it reacts to leakage currents from as little as 30 milliamperes, providing quick protection against electric shock. The rated short-circuit breaking capacity of 10kA (AC) guarantees effective disconnection of the circuit in the event of a serious failure. Mounting is on a DIN rail, which simplifies installation and integration with the existing system.

Product advantages – for the installer and user

• High reliability: Rated differential current of 30mA and short-circuit breaking capacity of 10kA provide effective protection against shock and damage to the installation.
• Wide range of applications: Rated current of 125A allows securing circuits with higher power consumption, ideal for powering apartments, houses or commercial facilities.
• Easy installation: DIN rail mounting significantly speeds up the installation process, saving time and labor costs.
• Mechanical lock: Provides additional security, preventing accidental disconnection of the breaker by the user or unauthorized manipulation by third parties.
• Wide operating temperature range: The ability to operate in a temperature range from -25°C to 40°C makes the device suitable for use in various environmental conditions.
• Large wire cross-section: The ability to connect wires with a cross-section of up to 50mm² (solid) and 35mm² (stranded) provides flexibility when selecting supply wires.
• Compliance with standards: The device meets applicable safety standards, guaranteeing its correct operation and compliance with regulations.

Technical parameters in practice

The CDC690 is characterized by a rated voltage of 415V and an insulation voltage Ui of 500V, ensuring safe operation in standard electrical installations. The IP20 degree of protection means protection against finger contact and solid objects larger than 12.5 mm – typical protection for devices mounted inside distribution boards. Additionally, the possibility of mounting additional equipment allows adapting the functionality of the breaker to individual installation needs. The rated impulse withstand voltage Uimp is as high as 4kV, which increases the device's resistance to sudden voltage surges.