The AF12-30-10-11 is a 3 pole - 690 V IEC or 600 UL contactor with 1 built-in auxiliary contact and screw terminals, controlling motors up to 5.5 kW / 400 V AC (AC-3) or 7-1/2 hp / 480 V UL and switching power circuits up to 28 A (AC-1) or 28 A UL general use. Thanks to the AF technology, the contactor has a wide control voltage range.They are mainly used for controlling 3-phase motors, non-inductive or slightly inductive loads. AFcontactors include an electronic coil interface accepting a wide control voltage Uc min. ... Uc max. Only four coils cover control voltages between 24... 500 V 50/60 Hz or 20... 500 V DC. AF contactors can manage large control voltage variations. One coil can be used for different control voltages used worldwide without any coil change.AF contactors have built-in surge protection.