The ABB AF370-40-11-13 contactor is a versatile 3-phase device designed for a variety of applications, including motor starting, isolation, by-pass, and distribution, with a maximum voltage capacity of 1000 V. It features a 4-pole configuration and is suitable for controlling motors up to 200 kW at 400 V AC (AC-3) and switching power circuits up to 525 A (AC-1) or 420 A for UL general use. The contactor operates efficiently within a wide control voltage range of 100-250 V, accommodating both 50/60 Hz and DC, thanks to its advanced AF technology. This technology not only manages large control voltage variations but also reduces panel energy consumption and ensures reliable performance in unstable networks. The contactor includes pre-mounted auxiliary contacts and main circuit bars, with built-in surge protection for a compact and efficient solution. Its block-type design allows for easy extension with add-on auxiliary contact blocks and a wide range of accessories, making it a flexible choice for various industrial applications.