MA series (ABB new type) AC contactors are mainly used in50/60Hz
electrical lines of the rated voltage up to 660V AC and rated
current up to 475A, are applicable for remote making and breaking
of electrical lines or frequent control of AC motors, having
no-voltage protection. Usually, it can be combined with T series
thermal relay to form electromagnetic starters which have overload
and open-phase protection. It complies with IEC947 & VED0660.