The IDEC YS1T-RHA38F21PD is a thermal overload relay within the YS Series, engineered for dependable motor protection in diverse industrial settings. It adheres to stringent IEC standards, ensuring consistent performance and safety. Featuring a compact design and silver-alloy contacts for long life, this relay provides robust protection against motor overload conditions. Its bimetallic design and ease of operation make it a valuable component in motor control circuits.