The DOEP FI/LS combination from Doepke is an innovative protective switch that combines the functions of a residual current device (RCD) and a 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 construction is designed to reduce the sensitivity to tripping at higher frequencies, minimizing the likelihood of device-related false tripping. The DOEP FI/LS combination is ideal for applications where fire protection is not required and offers high system availability. Installation is straightforward on a DIN rail, making setup easier.

• All-current sensitive for fault currents from 0 Hz to 150 kHz
• Low tripping sensitivity at higher frequencies to prevent false tripping
• Separate indication of the tripping cause for easy fault diagnosis
• Terminal blocks with a wide clamping cross-section range for flexible connection options
• Compact size for all rated currents, ideal for space-saving installations.