... copper 4.17 year histoty Parallel Circuit Self Regulating Heating Cable 220VSelf regulating heating cable is a parallel circuit electric heater strip. ... of the self regulating heating cable, and the conductive core provides an infinite number of parallel conductive paths, permitting ... :110V,220V,380VOuter power(W/m,10°C)10,15,20,25,30Explosive mark:ExllT6Self regulating heating Cable Accessories: