The Siemens 3UA52 00-0K Thermal Overload Relay is a high-quality electrical component designed for industrial applications. With its 3 phases and 3 poles, this relay provides reliable overload protection for electric motors. Made with durable ABS/plastic contact material, this unit is suitable for interior use and has a coil voltage ranging from 551-600V. Manufactured in Germany by the trusted brand Siemens, this relay is compatible with universal smart home systems and offers efficient protection properties for industrial settings.