Please use another Browser

It looks like you are using a browser that is not fully supported. Please note that there might be constraints on site display and usability. For the best experience we suggest that you download the newest version of a supported browser:

Internet Explorer, Chrome Browser, Firefox Browser, Safari Browser

Continue with the current browser

SPS IPC Drives 2017, Nuremberg, November 28, 2017

Siemens at SPS IPC Drives 2017

Heart of the electrical power distribution

3WL air circuit breakers are used as incoming-feeder, coupler, and outgoing-feeder circuit breakers in electrical systems in industry, buildings, and infrastructure applications. They have communications capability and can be easily integrated into higher-level control and energy management systems.

Maintenance and retrofitting of the 3WL circuit breaker is easy and can be done in few steps. See for yourself.
Video tutorial

powerconfig configuration software

Configure your 3WL air circuit breaker
3WL configurator

A broad product range

3WL air circuit breakers are available in four sizes, each featuring a 3- and 4-pole design, and cover a power range from 630 A to 6,300 A. The modular portfolio offers flexibility and provides for easy assembly and subsequent adjustment.


3WL air circuit breakers – versatile and flexible

  • Five power levels of the short-circuit breaking capacity for all applications
  • Available as circuit breakers and non-automatic circuit breakers in an AC version
  • Available as a circuit breaker in a DC version
  • Modules can be specially retrofitted for electronic trip units
  • Different connection technologies
  • Connection option of external input and output modules

3WL air circuit breakers – your benefits at a glance

  • Increased flexibility due to the modular portfolio
  • Increased plant availability and power transparency thanks to functions for communication and energy data acquisition
  • Long service life of equipment thanks to easy replacement of main contact elements and individual arc chutes
  • Efficient operation through the provision of energy data and ready-to-close indicator
  • Consistent, end-to-end communication capability
  • Compliance with worldwide IEC & UL standards
  • Product proven worldwide

Protection against short circuit, ground fault, and overload

Whether motors, capacitors, transformers, busbars, or cables – 3WL air circuit breakers reliably and efficiently protect electrical installations against damage or fire. Discover our portfolio. 

Find the right air circuit breaker
Siemens Industry Mall