The ABB AF52-30-11-14 is a DC contactor carrying a 250-500V 50/60Hz coil — the coil voltage range is wide enough to cover common 400V control circuits in European and Asian panels. The 'AF' prefix indicates the AF series, ABB's standard-duty contactor line for switching motor and resistive loads in control cabinets.
No official successor has been published, so the AF52-30-11-14 remains the direct fit for any BOM line that calls it out. For a maintenance-spares buyer holding legacy gear, this is the part to keep one in the cabinet — no substitution risk while the install base runs.
The 250-500V 50/60Hz coil rating means the contactor picks up reliably across a 2:1 voltage span — useful when the control transformer tap is uncertain or when the same part must work across sites with different line voltages. The DC contactor type tells you the main contacts are designed for DC load breaking, not just AC; if your circuit switches DC motors or DC bus loads, this is the correct construction. For AC motor duty, verify the contactor's AC rating in the full datasheet before specifying.