3RN1011-2CB00 SIEMENS

The Siemens 3RN1011-2CB00 is a phased-out thermistor motor protection evaluation unit, now superseded by the 3RN2011-2BA30. This standard evaluation unit is designed to safeguard motors against overheating by monitoring the temperature of thermistors embedded within the motor windings. It features a manual reset function, providing a straightforward method for restoring operation after a thermal trip. The unit incorporates one normally open (NO) and one normally closed (NC) contact, offering versatile signaling options for control and alarm circuits. It operates on a 24 V AC/DC power supply, making it suitable for a wide range of industrial applications. The 3RN1011-2CB00 utilizes spring-type terminals, ensuring secure and vibration-resistant connections. While no longer actively manufactured, it remains a reliable solution for existing installations requiring thermistor-based motor protection. Consider the successor model 3RN2011-2BA30 for new applications or replacements, benefiting from updated features and enhanced performance. This device is crucial for preventing motor damage and ensuring operational continuity.