Snow Melting & De-Icing Heating Cable

FINE SM2-CR is specifically designed for direct burial in  concrete to melt out snow piled up on street.

Unlike ordinary metal resistance wire which produces heat  output corresponding to its length, the core of SM2-CR is  composed of the infinite parallel connection of carbon  particles. The parallel circuitry allows the cable to be cut to  the exact length required, with no wasted cable.

SM2-CR consists of a continuous core of conductive  polymer extruded between two copper bus wires.

SM2-CR regulates its own heat output in response to  ambient temperatures as electrical current flows through  the core. The self-regulating function of the core is due to  its PTC (Positive Temperature Coefficient) property by  which the electrical consumption of SM2-CR is reduced in the application.

Especially, the self-regulating conductive core and insulation jacket of SM2-CR is treated with irradiation cross-linking reaction, yielding excellent heat resistance and cable stability in long term operation.

Product construction

Product construction

Product characteristics and design information

Copper   bus wire 14 AWG  
Max. power output 80 W/M at 0℃ in   concrete
Cable spacing 25 cm 4M/square   meter
Max. maintenance temperature 90℃  
Min. installation temperature -10℃  
Service voltage 200 - 277 VAC  

Fine Korea offers a full range of Accessories, which are termination silicone boot kit, end seal kit, and expansion joint

kit. These accessories must be used all together to ensure proper functioning of the product and compliance with warranty, code, and requirements of approvals.

Max. length (m) vs. Circuit breaker size

  start-up temperature 20A 30A 40A 50A
SM2-CR 220V 10℃ 23 35 50 65
0℃ 20 33 45 55
-10℃ 17 31 40 50


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