The Doepke GmbH RCD DFS4 040-4/0.03A 500 is a highly advanced residual current device designed for use in single-phase and three-phase networks. This switch provides reliable protection for people, animals, and electrical systems by automatically disconnecting the power supply in the event of dangerously high fault currents. With a compact design that occupies only four modular units, the DFS4 is suitable for both standard applications and specific requirements. The devices are available in various versions and offer high short-circuit resistance as well as the ability to connect large conductor cross-sections via the double-decker terminals on both sides. The integrated switching position indicator and the viewing window for labeling stickers facilitate handling and maintenance. The multifunctional switch knob allows for easy operation and troubleshooting, making this RCD a practical choice for various electrical installations.

• Two- or four-pole design for flexible applications
• Network and auxiliary voltage-independent tripping for increased safety
• Sensitivity for alternating and pulsating direct fault currents (Type A)
• High short-circuit resistance for reliable operation
• Easy mounting on DIN rail with wide double-decker terminals.