Siemens 48ATL3S00 ESP200 Overload Relay

Siemens 48ATL3S00 ESP200 Overload Relay is a solid-state, three-phase motor protection device in the ESP200 family, covering a 200–600 A adjustable range for motor circuits. This 3-pole unit (Size A1) can be mounted directly on a panel or overload backplate, and it accepts a current transformer (Class 5…30) for sensing; it also supports standalone operation and typical DIN-rail mounting on compatible assemblies. The ESP200 features manual or automatic reset and is rated for up to 600 VAC in motor protection applications. The 48ATL3S00 catalog entry corresponds to the 3UB8123‑4LW2 ESP200 variant, ensuring compatibility with Siemens contactors and motor starters in standard industrial panels.