Siemens 3UA6200-2X Three-Phase Overload Relay

Siemens 3UA6200-2X is a three-phase thermal overload relay designed to protect motors when used with compatible Siemens contactors. It supports a continuous current range of 80 to 110 A and is rated for circuits up to 600 V AC across three phases, making it suitable for medium-sized motors in industrial equipment such as conveyors, pumps, and fans. As part of Siemens’ 3UA overload-relay family, the 3UA6200-2X is installed alongside matching 3UA contactors to automatically disconnect motor power during overload conditions, helping prevent winding damage and downtime. This model is designed for standard three-phase electrical systems operating at voltages up to 600 V, enabling straightforward integration with existing Siemens motor-control architectures. By selecting a relay within the 80–110 A window, engineers align protection with the motor’s running current, supporting reliable startup behavior and protection without nuisance trips in normal operation. The 3UA6200-2X variant aligns with Siemens’ modular approach to motor protection, simplifying replacements and maintenance within established starter assemblies.