• No overheating or burn even it overlaps each other
  • It self-regulates thermal performance in response to temperature
  • It can be cut to any length to suit any installation condition
  • Independent heat output control along the length
  • Soft switching for energy saving and for the longer service time
  • Easy connection for powering and splicing.

Solco Pyroelec VSR Self-regulating heating cables perform the best in the below listed applications:

  • Freeze protection for water pipeline
  • Temperature maintenance for petrochemical plant
  • Snow melting for the outdoor facilities ex. road, roof
  • Floor warming for commercial building
  • Heated panel
var_selection code
var_thermal output graph


  • Temperature maintenance up to 110℃ (230°F)
  • Continuous exposure up to 135℃ (275°F) (Power-off)
  • 100 ~ 130 Vac or 200 ~ 240 Vac
  • Available in 16, 24, 30, 40 & 50 Watts/m
  • Heating Cable approx. dimentions
  • VSR16, 24, 30, 40 : 13.5mm x 5.8mm
  • VSR50 : 15.1mm x 5.8mm
  • Bus Wire - ASTM B355 Class 2 NPC 16 AWG
  • Flame retardant XLEVA or fluoropolymer outer jacket
    (Optional) (Exposure to organic and aqueous
    inorganic chemicals and corrosives)


  • Max. Maintain temperature(Power-on) 110℃ (230°F)
  • Max. Continuous exposure temperature(Power-off)
    135℃ (275°F)
  • Rated voltage 12, 24 Vdc
  • Rated power output 12, 17 watt/m@10℃
  • Approx. Dimensions
    9.6mm x 2.1mm without insulation
    11.1mm x 3.6mm insulation
    11.3mm x 5.6mm outer jacket
  • Bus wire - ASTM B355 Class 2 NPC AWG16
  • Outer jacket (Optional)
    Exposure to aqueous inorganic chemicals
    Exposure to organic chemicals or corrosive

FM approvals
VSRab-Cc. Self-Regulating
Electrical Heating Cable
S/1/2/ABCD/T4; IP66
Cert No. 3033885

KCs approvals
VSR Self-regulation Heating
Cable System
Ex e II T4
Cert No. 11-AV2BO-0145

SGS Baseefa, ATEX
HSR and VSR self Regulating Heating Cable Systems
EN 60079-0: 2009
EN 60079-15: 2005
EN 60079-30-1: 2007
Ex II 3 G Ex nA IIC T* Gc IP66
(* refer to the Description for T class)
Cert No. Baseefa12ATEX4255X

LRQA, LIoyd's
Heating Cables
Cert No. 13/10027

* For More detail of certificate, click approval logo.


VSR Self-regulating heating cable complies to the below listed internation standards :

IEEE Standard 515 : 2004
Testing, Design, Intallation, and Maintenance
of Electrical Resistance Heat Tracing
for Industrial Applications

IEC Standard 60079-30-1 : 2007
Electrical Resistance Trace Heating

Part 30-1
: General and testing requirements
Part 30-2
: Application guide for testing, installation, and maintenance