Siemens 3UA5200-1G is a three‑pole thermal overload relay from the Sirius family designed to mount to Siemens contactors (notably 3TF32/33) to protect three‑phase motors from overload. It offers adjustable protection in the 4 A to 6.3 A range (Class 10) and is rated for up to 600 V AC, with a front‑mounting, push‑to‑reset configuration for quick recovery after an overload. This variant is a legacy part, listed as discontinued by Siemens with end‑of‑life status; remaining stock and refurbished units are typically available from distributors of legacy automation components.
