The SMISSLINE RCBOs are ideal for protecting people and property in all new and existing distribution systems. The combination of standby current and cable protection in one single device greatly simplifies planning and offers cost benefits. Using a RCBO can e.g. satisfy the minimum level of protection required by regulations in an apartment or in a particular distribution system. Should a residual current arise, only the circuit directly affected is switched off while all other circuits remain in operation.

The range designed to ensure efficiency and protection. RCBOs are commonly used in applications where there is the need to combine protection against overcurrents (overload and short-circuit) and protection against earth leakage currents. RCBOs help in sensing this kind of faults and trip the circuit ensuring complete protection of the people and connected equipment.

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Main benefits

Complete range

Wide choice of codes to cover main customer needs

Continuous operation

Easy troubleshooting on the network and reduced downtime for maintenance

Easy to install

Time saving in wiring operation

Global availability

Compliant with Local Standards and wide set of Approvals

Main features

  • Short-circuit breaking capacity of 10 kA (IEC/EN 61009) for all types even with the 4pole version
  • Type A and F (APR)
  • Expandable for future extension with direct pluggable solution
  • Flexible and modular

Product range


RCBO up to 6kA for commercial, industrial and critical power applications.


Function: protection of end user circuits against overload and short-circuit currents; protection against the effects of sinusoidal alternating and direct pulsating earth


Function: protection against the effects of sinusoidal alternating and direct pulsating earth fault currents, providing an optimal trade-off between safety and continuity of service thanks to the resistance to unwanted tripping; protection against indirect contact and additional protection against direct contact (IΔn=30 mA); protection and isolation of resistive and inductive loads.

Products and Documentation

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