ABB RCBOs

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ABB MCB/RCBO (RCBO) – Compact protection for individual circuits

With an ABB LS-FI switch (also known as FI/LS or RCBO ) you get Residual current protection and line protection in one device. This means: protection against electric shock (residual current) plus protection against overload and Short circuit protection – ideal if you want to protect individual circuits separately.

This product overview contains a wide selection of ABB RCBOs (residual current circuit breakers/miniature circuit breakers). For residential, commercial and industrial buildings – in various pole counts, rated currents, and tripping characteristics. and residual current types.

Why ABB LS-FI switches?

ABB stands for reliable protection technology and clean workmanship. ABB's residual current circuit breakers (RCCBs) are particularly practical, if you want more safety per circuit without overloading the distribution board with multiple devices.

  • 2-in-1 protection: RCD + MCB in one device
  • Space-saving: ideal for compact sub-distribution boards
  • Faster fault finding: the affected circuit is clearly identifiable
  • Less wiring: saves time during assembly.
  • Robust & durable: for continuous use

ABB Series Overview: DS201 & DS202C

Common ABB FI/LS series include DS201 (mostly 1P+N) and DS202C. (Compact versions depending on the application). They are ideal if you want to target individual consumers, If you want to protect rooms or critical areas separately.

Typical characteristics:

  • Configurations such as 1P+N (typical for single final circuits)
  • Rated current e.g. 6A, 10A, 13A, 16A, 20A, 25A, 32A
  • Characteristics often B or C (depending on the load)
  • Residual current tripping current e.g. 30 mA (personal protection)
  • Residual current type as required, e.g. type A (widely used)

When is a residual current circuit breaker (RCCB) particularly useful?

An ABB RCBO is often the best choice if you want to protect individual circuits separately or if outages are only supposed to affect a small area.

  • kitchen, bathroom or outdoor areas
  • Washing machine, dryer, dishwasher
  • Servers, network, sensitive technology
  • Workshop and garage electrical circuits
  • Commercial individual consumers

How to choose the right ABB RCBO

To ensure the protection is truly suitable for your installation, pay particular attention to:

  • Number of poles: e.g. 1P+N
  • Rated current (A): suitable for the cable and fuse
  • Characteristic: B for standard circuits, C for higher inrush currents
  • Tripping current (mA): often 30 mA for personal protection
  • Residual current type: suitable for the load (e.g., type A)

Buy ABB LS-FI switches online

Discover our range of ABB MCBs and RCBOs now and find the right RCBO combination. for your application. With fast delivery, fair prices and technical advice, you get exactly the protection you need. The one you need – compact, reliable and compliant with standards.