Surge Suppressor Unit, 250 V dc, Clip On Mount. Range: Sirius Innovation. Length: 11.5mm. Width: 18.6mm. Depth: 30.2mm. Minimum Operating Temperature: -25°C. Maximum Operating Temperature: +60°C. Operating Temperature Range: -25 → +60 °C. Dimensions: 11.5 x 18.6 x 30.2 mm. MPN: 3RT2926-1ES00, Siemens