3253 YL001 is part of Alpha, a line of electrical components manufactured by Siemens. It is a 16A, single-phase AC Motor Contactor with auxiliary contacts, available in four frame sizes. It has a wide voltage range, making it suitable for many applications, and meets international standards including EN 60947-4-1. Its features include a clearly visible coil status, IP20 degree of protection, adjustable reaction time, and low voltage coil configuration. It is designed for use in control and switching circuits found in most industrial applications.