The DOEP DFS4 040-4/0.03-A TWIN residual current circuit breaker from Doepke is a highly advanced safety device designed to protect people, animals, and electrical systems. This residual current circuit breaker (RCCB) disconnects the power supply when dangerously high fault currents occur, providing effective protection in single-phase or three-phase networks. The compact design of the device occupies only four modular units and is available for rated currents up to 125 A. The Twin version allows for functional testing of the device without interrupting the circuit, which increases system availability and avoids costs associated with downtime. The integrated labeling software simplifies the labeling process, while the large double-deck terminals can accommodate large conductor cross-sections. The DOEP DFS4 is thus a reliable solution for monitoring circuits with a rated voltage of 230 V and 400 V.

• Twin version allows functional testing without power interruption
• High system availability due to standard-compliant residual current protection during the testing procedure
• Easy fault finding thanks to the tripped position of the multifunction switch knob
• Suitable for pulse and alternating current sensitive applications
• Large double-deck terminals for high conductor cross-sections.