Cuptor L 3/12 cu controller C 450 3. Technical specifications Inner dimensions (wxdxh): 160 x 140 x 100 mm Work space1 (bxtxh): 135 x 115 x 75 mm Outer dimensions2 (WxDxH): 385 x 330 x 405 mm Temperature Uniformity: +/- 5 K with closed air inlet in the empty workspace according to DIN 17052-1 at working temperatures > 800°C Volume: 3 liter Weight: 20 kg Power rating: 1,3 kW Supply voltage: 220-240 V, 1/N/PE (2PE) 50/60 Hz Max. operating temperature3: 1200 °C Heat-up time (without load): 60 min. to Tmax (if connected at 230 V, 1/N/PE) 1 Defined space inside furnace where the temperature uniformity is valid. 2 Outer dimensions may vary depending on additional equipment and accessories. Exact dimensions on request. 3 Continuous operation at maximum temperature can lead to increased wear of the heating elements, thermocouples or isolation. We recommend operation at approx. 50 °C below the maximum temperature. 4. Customized furnace design  Housing manufactured from high grade structured stainless steel  Dual shell housing  Exhaust air outlet in the furnace rear wall  Switching of the heating elements by electronic relay  Adjustable air inlet in the door  Door opening supported by springs  Flap door which can be used as work surface while charging  Only fiber materials are used which are not classified as carcinogenic according to TRGS 905, class 1 or 2  Only fiber materials are used which are not classified as carcinogenic according to TRGS 905, class 1 or 2  Heating fr