Siemens 3UA6200-2H Overload Relay

Siemens 3UA6200-2H is a thermally delayed overload relay designed to protect three‑phase motors by mounting to Siemens contactors in the 3TB50/52 family. It covers a current range of 55 to 80 A and supports operation up to 600 V AC, making it suitable for moderate‑power motor protection in industrial settings. The device provides one normally open (NO) and one normally closed (NC) auxiliary contact for signaling or interlocking, enabling straightforward integration with control circuits. Intended for front mounting to the compatible contactor or starter, the 3UA6200-2H forms a compact motor‑protection assembly when paired with Siemens starters, helping prevent motor damage from overload events. As part of the Siemens 3UA overload relay lineup, this relay is used in applications such as conveyors, pumps, fans, and machine tools where reliable thermal protection and clear trip indication are essential. To ensure correct installation, verify the relay is paired with a compatible Siemens contactor in the 3TB50/52 series and confirm the motor’s full‑load current falls within the 55–80 A rating and the supply voltage does not exceed 600 VAC.