The AF range is ABB's electronically controlled contactor line and the successor to the old A-line. Its defining feature is the wide-band coil: one AF contactor typically covers a broad control-voltage range instead of a single voltage, which cuts the number of variants a panel builder has to hold. We supply AF and AFC compact contactors across the range, plus AFS safety contactors with mirror contacts for safety circuits.
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The A-line used conventional coils wound for one voltage; AF uses an electronic coil covering a wide voltage band, with lower holding power and better tolerance of supply dips.
Yes, within its stated coil band. A coil coded for 100–250 V AC/DC will operate anywhere in that range, which is why AF contactors reduce stock variants. Always check the specific coil code on the reference.