Residual Current Circuit Breaker FH204 AC-40/0.03 - 4-pole 2CSF204002R1400

Residual Current Circuit Breaker (RCCB) FH204 AC-40/0.03 is a four-pole protection device designed to protect electrical installations from the effects of earth leakage currents. The device is characterized by high efficiency in detecting leakage currents, ensuring the safety of people and equipment. Mounting is done on a DIN rail, which facilitates installation and integration with existing infrastructure.

This model, catalog number 2CSF204002R1400, features a rated current of 40A and a differential current sensitivity of 0.03A. Made in AC technology, it effectively reacts to sinusoidal leakage currents. The width of the device, 4 modules (72mm), allows for optimal use of space in the distribution board. The circuit breaker has a mechanical lock, preventing accidental switching on or off.

Features and benefits:

• Versatile application: ideal for protecting circuits in residential and commercial buildings.
• High reliability: compliance with IEC/EN 61008 standards guarantees safety and long-term operation.
• Protection against electric shock: 30mA sensitivity ensures a quick response in the event of a leakage current, minimizing the risk of electric shock.
• Easy installation: standard DIN rail mounting simplifies and speeds up installation.
• Durability: shock current resistance up to 0.25kA and short-circuit strength 1kA ensure stable operation even in difficult conditions.
• Safety of use: mechanical lock prevents accidental switching on or off of the circuit breaker during operation or maintenance of the installation.
• Wide operating temperature range: the device retains its properties in the temperature range from -5°C to 40°C, allowing it to be used in various environments.

The FH204 AC-40/0.03 circuit breaker has been designed with the requirements of modern electrical installations in mind. Its construction provides effective protection against overloads and short circuits, as well as against dangerous leakage currents to earth. The rated insulation voltage Ui is 500V, and the rated impulse withstand voltage Uimp is 4kV – confirming high resistance to overvoltages. The possibility of connecting conductors with a cross-section from 10 to 25 mm² (stranded) and from 25 mm² (solid) provides flexibility in choosing the appropriate power cables. The device has a protection degree of IP2X, which means protection against touching with a finger and against solid bodies larger than 12.5 mm.