The SCHN safety relay from Schneider Electric, known as Harmony XPS Universal, is a highly advanced safety component specifically designed for monitoring motor standstills. It offers comprehensive diagnostic capabilities that help minimize downtime in the event of a fault. Through innovative technology for safe standstill detection, the residual voltage of the motor is measured, eliminating the need for additional sensors. This relay is capable of monitoring both DC and AC motors in single or three-phase networks up to 690 V. The user-friendly front panel allows for easy adjustment of threshold values and delay times, facilitating customization for specific applications. With a safe relay contact and a semiconductor signaling output, the device provides a reliable interface for transmitting diagnostic data to control systems, ensuring comprehensive monitoring and fault detection.

• Safe standstill detection through measurement of residual voltage
• Adjustable delay time from 0.5 to 60 seconds
• Compatible with DC and AC motors up to 690 V
• Integrated diagnostic function for fault detection and reporting
• Expandable via a side connector for additional outputs.