The PHOENIX CONTACT part 2866093 is a high-quality monitoring relay designed for temperature monitoring of motor winding, supporting up to 6 PTC sensors. This relay features error memory for temperature sensors in accordance with DIN 44081 standards, ensuring accurate and reliable temperature monitoring. It also includes a test function with an integrated test/reset button for simplified operation. The supply voltage for this relay can be easily selected using a power module, providing flexibility in installation. With 2 PDTs (Potential Distribution Transformers), this relay is a versatile and efficient solution for temperature monitoring applications.