The Siemens TRA111B0P TRA ON Delay Time Delay Relay is a reliable and high-quality product designed for precise timing applications. As part of the Siemens brand, you can trust that this relay will provide accurate and consistent time delays. The model number Siemens 7PX1040-1AJ20 ensures compatibility with a variety of electrical equipment and systems, making it a versatile option for various industrial settings. With its built-in timer feature, this delay relay is ideal for controlling the timing of various processes and functions with ease.