Residual current circuit breaker with overcurrent release 4P 6kA B 16A/30mA A QC/QB ADM416QC

RCBO 4P 6kA B 16A/30mA A QC/QB - residual current device with overcurrent protection element

The ADM416QC residual current device with overcurrent protection element is a protective device that combines overcurrent protection and leakage current detection functions in a compact modular housing. The four-pole design provides comprehensive protection for all conductors in the circuit, while the Type B characteristic guarantees rapid response to short circuits while maintaining immunity to inrush currents.

Design and electrical parameters

The device operates at a rated voltage of 230-400V AC and a rated current of 16A, offering a short-circuit breaking capacity of 6kA in accordance with EN 60898-1 and IEC 61009-1 standards. The rated residual current is 30mA with Type A sensitivity, ensuring effective protection against electric shock while maintaining immunity to harmonic disturbances.

The B tripping characteristic guarantees an immediate response to short-circuit currents in the range of 3-5×In, while simultaneously providing immunity to the inrush currents of motors and transformers. An insulation voltage of 500V and an impulse withstand voltage of 4kV ensure safe operation in demanding environmental conditions.

Connection system and mounting

The design utilizes the innovative QuickConnect/Biconnect connection system, enabling fast and secure mounting of conductors with a cross-section of 1-25mm² (solid) or 1-16mm² (stranded). The device occupies only 4 modules on the DIN rail, and its compact dimensions (84×71×70mm) allow for space savings in the distribution board.

The standard terminal tightening torque is 2Nm, and the 360° mounting capability significantly facilitates installation in hard-to-reach locations. The system allows for easy removal of individual modules from the phase rail using upper and lower sliders.

Operating conditions and safety

The device maintains full functionality in temperatures ranging from -25°C to +40°C, with power losses of only 10.9W at the rated current. An I²t energy limitation class of 3 and an IP2X protection rating ensure reliable operation in industrial and residential environments.

Compliance with DIN EN 61009-1 (VDE 0664-20) standards guarantees the highest safety standards, while overvoltage category III and pollution degree 2 allow for use in installations with increased reliability requirements.