ABB contactors give silent operation

It takes a lot to silence the buzz around Hampden, Scotland’s national stadium, as kickoff approaches, but ABB Control says it has made a contribution, by at least silencing the buzz of the control gear through the use of new electronic products. The ABB Control AF range of AC contactors that switch current to the floodlights have an electronic coil interface that gives silent operation without the need for expensive DC contactors and separate rectifiers. Not only is the system quieter, installation is quicker and simpler, and space is saved in the panel.