Siemens 3UA7011-1E is an electromechanical overload relay that provides thermal protection for three-phase motors in motor-control circuits; it belongs to the Siemens 3UA7 family and is designed for direct mounting to Siemens 3TF2/3TD2 contactors, or for standalone mounting on a 35 mm DIN rail or panel. It has a setting range Ir of 2.5–4 A and is rated for up to 380 VAC, making it suitable for motor feeders in standard industrial installations. The unit supports direct mounting on compatible contactors and can be mounted separately on a 35 mm DIN rail, offering flexible integration in control panels.
