The DOEP FI/LS combination is an innovative circuit breaker that combines the functions of a residual current device (RCD) and a miniature circuit breaker (MCB) in a compact unit. This combination provides comprehensive protection for people and electrical systems by safeguarding against both fault currents and short-circuit or overload situations. With a rated breaking capacity of 6 kA and an all-current-sensitive design, this switch is optimized for frequencies ranging from 0 Hz to 150 kHz. The DRCBO 4 is particularly resistant to surge currents and lightning, enhancing its reliability in various environments. The tripping characteristic C is specifically designed for circuits with high inrush currents, while the SK curve ensures high system availability and minimizes fault-related trippings. With a clear labeling window and a separate display for the cause of tripping, the device is user-friendly and efficient.

• All-current sensitive for frequencies from 0 Hz to 150 kHz
• Low sensitivity to higher frequencies to avoid false trippings
• Surge current and lightning resistant for increased reliability
• Separate display for the cause of tripping for easy fault diagnosis
• Compact size for all rated currents.