The ABB AF52-40-00-13 is a 4-pole contactor from the AF52 series, with a coil rated for 100-250V 50/60Hz AC/DC. That wide-range coil means you can standardise on one contactor across panels fed by different line voltages — 110V, 230V, or 24V DC all fall inside the operating window without swapping coils. The 4-pole configuration gives you three main poles for switching three-phase motor loads and a fourth pole that can serve as an auxiliary contact or switch a separate circuit, common in reversing or star-delta starters where an extra N/O or N/C is needed without an add-on block.
Mounts on DIN rail in a standard control panel enclosure. The 4-pole footprint matches the AF52 family's mechanical interlock and auxiliary contact add-ons, so retrofitting into an existing panel layout is straightforward if you already use ABB AF-series contactors.