Siemens 3UA5200-0G N Three-Phase Solid State Relay

Siemens 3UA5200-0G N is a three-phase solid-state overload relay designed to protect motors in low-voltage starter circuits. It is rated for a current setting range of 0.4 to 0.63 A and a maximum operating voltage of 600 V on a three-phase (3P) system, making it suitable for protecting small to mid-size motors in Siemens control panels. The "N" variant belongs to the 3UA5200 family and is intended for integration with Siemens motor starters to sense overload conditions and interrupt the circuit to prevent motor damage. By employing a solid-state solution, this relay offers rapid response to overcurrent events with reduced mechanical wear compared with traditional thermal relays, contributing to safer operation and longer motor life in industrial automation environments. When wiring, the device is typically placed in the motor control circuit so that a fault condition triggers a switch-off of the motor supply, safeguarding equipment and minimizing downtime. For definitive installation details, wiring diagrams, and compatibility with specific starter configurations, consult the official Siemens documentation or an authorized Siemens distributor.