Freeze Free Self-regulating pipe heating cable automatically varies its heat output with changes in surrounding temperature.. Freeze Free cable helps keep plastic and metal water pipes from freezing to -60 degrees/-52 Degree Celsius.. A braided metal jacket provides an electrical ground as well as protection against damage in dry locations. Cable is available on reels and can be cut to the proper length for the specific application. Cables are rated at 3 watts per foot- 120 Vac at 50 degrees F/ 10 degrees C. 75-foot maximum circuit length- 3-foot minimum circuit length. Freeze Free cable is UL Listed to US and Canadian Safety Standards and CSA Certified.