The Danfoss SLPG/SLIG (PX-F) self-limiting (self-regulating) heating cables with CSA certification provide the solution to basic freeze protection applications. The self-limiting capability of the cable ensures that the output of the cable increase or decrease according to ambient temperature. The cable will maintain its functionality even when shortened. All self-limiting heating cables must be over-temperature protected by a thermostat, as the output will decrease, but never be zero , and be protected by a RCD with a maximum trip current of 30 mA. The outer sheath is highly resistant to harsh environmental conditions and corrosion and it also serves as a protection against mechanical influences.