The heating part is made by several power resistive elements into a finned stainless tube. Metallic cage black painted with epoxydic dusts with tongues for floor fixing. Connection on a ceramic screw terminal closed into a box fixed inside the cage; cable entry through a 3/4 inch metallic cable gland. Available heatings: 1,5 - 2 - 2,5 - 3 - 3,5 - 4 - 4,5 kW., others on request. Supply voltages: single-phase 220-240V AC/DC, three-phase 380, 400, 415V, others on request. For others power values, please contact our technical deparment.