The Doepke DFS4 040-4/0.30-A V500 is a highly advanced residual current circuit breaker (RCCB) designed for use in single-phase and three-phase networks. With a rated current of 40 A and a rated residual current of 300 mA, this four-pole switch provides reliable protection for people, animals, and electrical installations. The compact design of the device allows for easy installation on a DIN rail, occupying only four modular units. The switch is equipped with a network and auxiliary voltage-independent tripping mechanism, ensuring high safety. Additionally, it is sensitive to alternating and pulsating direct residual currents, making it particularly versatile. The large double-decker terminals enable the connection of conductors with a large cross-section, while the switching position indicator and the viewing window for labeling stickers facilitate handling and troubleshooting.

• Sensitive to alternating and pulsating direct residual currents (Type A)
• High short-circuit strength
• Double-decker terminals on both sides for large conductor cross-sections
• Multifunctional switching knob with three positions: on, off, tripped
• Viewing window for labeling stickers.