Siemens 3UA191-.63-1 Relay

Siemens 3UA191-.63-1 Relay is an overload protection relay from the Siemens 3UA series, designed to protect AC motors by monitoring current and triggering a protective trip when overload or abnormal conditions occur. It is intended for use with Siemens motor protection starters and contactors as part of a compact protection assembly in industrial control panels. The 3UA family is known for reliable motor protection through adjustable trip characteristics and clear status signaling, making it a common choice for small to mid-size motors across manufacturing and processing environments. For exact electrical ratings, trip characteristics, and mounting compatibility, consult the official Siemens datasheet for model 3UA191-.63-1.