Residual current circuit breaker, 4P, AC, 40A, 30mA, instantaneous F204 AC-40/0.03 2CSF204001R1400

Protection of installations and life with ABB F204 AC-40/0.03 residual current circuit breaker

This four-pole residual current device (RCD) from ABB's F200 series is a key element ensuring safety in electrical installations. It is designed to protect people from electric shock and to protect installations from the effects of short circuits to earth. Its operation is based on the rapid detection of small leakage currents, which can pose a hazard.

This circuit breaker is characterized by a rated current of 40A and a sensitivity of 30mA, making it an ideal solution for a wide range of applications – from home installations, through commercial, to industrial. The instantaneous AC type construction provides effective protection against sinusoidal short-circuit currents to earth. Mounting is on a DIN rail, which facilitates integration with existing electrical infrastructure.

Construction features and operating parameters

The F204 AC-40/0.03 circuit breaker is distinguished by its solid construction and high reliability. It has a protection degree of IP2X, which provides basic protection against contact and ingress of solid objects. Short-circuit strength at the level of 1 kA and impulse withstand voltage of 0.25 kA guarantee stable operation even in difficult operating conditions. The width of the device, 4 modules, allows for efficient use of space in the switchgear cabinet.

The use of a mechanical lock increases safety during maintenance and repairs, preventing accidental switching on of the circuit breaker during service work. Designed to operate at temperatures from -25°C to 55°C, it will perform well in various environments. The possibility of mounting additional accessories expands the functionality of the device and allows it to be adapted to the specific needs of the installation. The rated insulation voltage Ui is 500V and the rated impulse withstand voltage Uimp is 4kV, ensuring a high level of device safety. The cross-section of the connectable single-wire conductor is 25 mm².