The DOEP DFS4 040-4/0.30-A KV residual current circuit breaker 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. With a compact design that occupies only four modular units, the switch is suitable for both private and commercial applications. Its high immunity to short-term impulse and fault currents ensures increased system availability, while the network voltage-independent tripping offers additional safety. The DOEP DFS4 is available in a variety of fault current types and versions, making it suitable for monitoring circuits with a rated voltage of up to 400 V and a frequency of 50 Hz. The user-friendly tripping characteristic and the ease of troubleshooting make this switch a reliable choice for anyone who values safety and efficiency.

• High immunity to impulse fault currents
• Network and auxiliary voltage-independent tripping
• Sensitive to alternating and pulsating direct fault currents
• Easy troubleshooting with multifunctional switch knob
• Suitable for single-phase and three-phase networks up to 125 A.