Residual current circuit breaker 3P+N 40A/30mA Type A QuickConnect left N CDS440R

Safety and protection in your electrical installation

Residual Current Device (RCD) 3P+N with a rated current of 40A and a sensitivity of 30mA is a key element ensuring the safety of using the electrical installation. The device effectively protects against electric shock by detecting even small leakage currents and immediately disconnecting the circuit. Its four-pole (3P+N) design makes it ideal for protecting three-phase circuits with a neutral wire.

Design and installation – speed and reliability

The RCD has been designed for quick and easy mounting on a DIN rail. The QuickConnect system simplifies the connection of wires, saving the installer time. Compact dimensions (width 4 modules, depth 70 mm) allow for efficient use of space in the distribution board. The cross-section of the connectable solid wire is 1…25 mm², and the stranded wire is 1…16 mm², ensuring compatibility with various types of wires used in electrical installations.

Characteristics and application – protection tailored to needs

The type A RCD is designed to protect against short circuits and earth leakage currents in AC circuits. Its sensitivity of 30mA ensures high effectiveness in detecting dangerous leakage currents, protecting users from electric shock. The short-circuit strength of 6kA guarantees reliable operation in the event of a short circuit. The device meets safety standards, and its IP20 protection degree provides protection against finger contact. The rated impulse withstand voltage Uimp is 4kV, which increases its resistance to overvoltages. The possibility of additional equipment allows the RCD to be adapted to the specific requirements of the installation.