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ESB Installation contactors

ABB’s hum-free installation contactor designs offer a wide range of ratings from 16 A to 100 A. Widely used in buildings for switching and controlling lighting, heating, ventilation, motor and pumps, the installation contactors take noise reduction to a new level. With an innovative AC/DC design that eliminates hum, a selection of tool-free accessories as well as manual and automatic versions, installation contactors offer peace of mind in noise-sensitive applications.


  • Hum-free operation - peace of mind in noise-sensitive environments
  • Tool-free accessories - auxiliaries, space holders and security covers can be mounted 100% tool-free
  • Group mounting - no need for a distance piece in between contactors ESB16..N and ESB/EN20..N
  • Single- and multi-packaging – the right choice according to your needs
  • Easy warehousing – one auxiliary contact block, AC/DC control and EAN code on the devices


  • Comprehensive solution – one range from 16A to 100A 
  • Wide application range - all relevant standards such as IEC60947-4-1, IEC61095 and various certification are available, including marine
  • Built-in protective circuit - protect against remote lightening strikes and overvoltages
  • Automatic/manual operation - EN specialty types feature a manual override functionality with a toggle switch