DJR Heater use 6063 special aluminum alloy heat conductor. For expanding the heat radiating area, each radiator fin has small radiating rib. Good Ni80Cr20 nichrome resistance wire heating core with nice micarex. Small size, light weight, large heating area, non-naked fire, high thermal conversion rate, less influence by power and voltage, long life span. Widely used for high-tension switch board, centrally installed switchgear, ring main unit, terminal box, box-type substation and other kinds of electric equipment. anti condensation, prevent the electric leakage and glint incident.