3RU2116-4AC0 Siemens

The Siemens 3RU2116-4AC0 is a thermal overload relay designed to provide efficient motor protection. This component is part of the SIRIUS product line and is engineered to safeguard motors in the event of overload or phase failure. The relay is suitable for a size S00 contactor and offers a manual-automatic-reset feature for ease of use. With an adjustable current response value ranging from 11 to 16 A, the 3RU2116-4AC0 ensures precise protection for a variety of motor sizes. It operates with a rated voltage of up to 690 V and is compatible with operating frequencies between 50 and 60 Hz, making it versatile for different power networks. The overload relay is equipped with spring-type terminals for both the main and auxiliary circuits, facilitating a secure and maintenance-friendly connection. Its compact design, with dimensions of 87 mm in height, 45 mm in width, and 70 mm in depth, allows for easy integration into existing setups without requiring significant space. This thermal overload relay is designed with a trip class of 10, ensuring a quick response to overloads, thereby minimising potential motor damage. The product also features integrated auxiliary contacts, with one normally closed (NC) and one normally open (NO) contact, which can be used for signalling purposes. Built to withstand challenging industrial environments, the Siemens 3RU2116-4AC0 can operate at installation altitudes of up to 2000 metres above sea level and within a temperature range of -40 to +70°C during operation. Its robust construction is also reflected in its insulation voltage rating and surge voltage resistance, ensuring long-term reliability and performance. The 3RU2116-4AC0 is a testament to Siemens' commitment to quality and innovation in motor protection technology. It is an essential component for industrial applications where motor safety and reliability are paramount.