Siemens 3UA5200-7D U Electronic Motor Protection Overload Relay

Siemens 3UA5200-7D U Electronic Motor Protection Overload Relay is an electronic thermal overload device designed to protect three‑phase motors from overcurrent and overheating. Rated for up to 600 V AC and three‑phase operation, it provides adjustable overload protection with a setting range of 1.85 to 3.0 A, enabling precise coordination with the motor’s running current. When the monitored current exceeds the preset value, the relay trips to disconnect the motor and prevent damage, reducing wear, downtime, and potential motor failure in industrial control circuits. This model belongs to Siemens’ 3UA5200 family of electronic overload relays, offering compact protection for motor starters in a variety of industrial applications.