Surge Suppressor Unit, 24 → 48 V ac, 24 → 70 V dc, Clip On Mount. Range: Sirius Innovation. Length: 29.5mm. Width: 30mm. Depth: 14.4mm. Minimum Operating Temperature: -25°C. Maximum Operating Temperature: +60°C. Dimensions: 29.5 x 30 x 14.4 mm. Operating Temperature Range: -25 → +60 °C. MPN: 3RT2936-1BB00, Siemens