AF40 contactors are used for controlling power circuits up to 690 VAC and 220 VDC. They are mainly used for controlling 3-phase motors, non-inductive or slightly inductive loads. AF contactors include an electronic coil interface accepting a wide control voltage Uc min, Uc max. Only four coils cover control voltages between 24 to 500 VAC 50/60 Hz or 20 to 500 VAC. 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 and do not require additional surge suppressors. The AF series 1-stack 3-pole contactors are of the block type design. Main poles and auxiliary contact blocks: 3 main poles, front and side-mounted add-on auxiliary contact blocks (mechanically linked auxiliary contacts compliant with Annex L of IEC 60947-5-1. N.C. Mirror contacts compliant with Annex F of IEC 60947-4-1) - control circuit: AC or DC operated.