THERMOSTAT WIRE
THERMOSTAT WIRE is a NEC / UL (USA) cable designation: THERMOSTAT WIRE = Thermostat wire: Class 2 control cable, solid bare copper conductors in a PVC jacket. 150 V, Class 2 power-limited (as two makers print it). UL 13 (power-limited circuit cable); NEC Article 725, Class 2.
1 coding system recognises this code
NEC / UL (USA)
| Symbol | Meaning |
|---|---|
THERMOSTAT WIRE | Thermostat wire: Class 2 control cable, solid bare copper conductors in a PVC jacket. 150 V, Class 2 power-limited (as two makers print it). UL 13 (power-limited circuit cable); NEC Article 725, Class 2 |
What is THERMOSTAT WIRE cable?
THERMOSTAT WIRE: Thermostat wire: Class 2 control cable, solid bare copper conductors in a PVC jacket. Rating: 150 V, Class 2 power-limited (as two makers print it). Standard: UL 13 (power-limited circuit cable); NEC Article 725, Class 2.
Two makers agree (Southwire SPEC 10090 p. 1, Cerrowire REV-05/2011 p. 1, read 2026-11-03): solid bare copper conductors, brown PVC jacket, 150 V, UL 13, NEC Article 725, Class 2; "18/2" is 18 AWG, two conductors. They differ on the insulation (Southwire HDPE, Cerrowire PVC 6 mils), the listing (CL2; CL2R and CMR) and the temperature (Cerrowire -20 to 60 C, Southwire none stated), so the insulation compound and the core colours are not shown. The plenum version (Southwire SPEC 10091, CL2P, 300 V, 75 C) is another product.
Documents and pages the readings were taken from
Fire behaviour (EU CPR)
PVC sheath (THERMOSTAT WIRE).
Typically targeted, as declared by makers for this kind of construction in the examples this site checked (not the class of this cable):
EcaN1XV-R, Ahlsell (seller)Cca-s3,d1,a3FG16OR16, Nexans (La Triveneta Cavi)EcaU1000 R2V, Nexans (La Triveneta Cavi)EcaN2XSY, Waskönig+Walter (10 kV datasheet)
Listed as sources, alphabetically by maker. No maker pays to appear here.
A CPR class is declared by the maker in its Declaration of Performance and printed on the sheath (EN 50575 cl 7). This decoder does not assign one. What the CPR classes mean →
Sources: EN 13501-6 draft and FprEN 50575:2014 final draft (drafts, not the published texts); IEC 60332-3-24:2000+A1:2008; EN 13501-3 draft A2.
Laying, sizes and datasheet: THERMOSTAT WIRE
Its sizes are in AWG and kcmil, which are not the same as the nearest mm²: compare them by area and by resistance. AWG to mm²
Work with THERMOSTAT WIRE
Who makes or stocks this cable?
Makers and stockists of this cable family appear here as sponsors for your region, each marked "Sponsored"; a listing never changes what this page says about the cable.