Extreme cold temperatures can cause cables to stiffen, crack, and even break. To avoid cable damage, select a cable with a sufficient cold temperature rating for your application. Thermoplastic products (THHN-2/THWN-2) may stiffen at temperatures colder than -10°C, while cables made of thermoset insulation (XHHW-2) are temperature rated -40°C. XHHW-2 uses XLPE insulation instead of PVC. The cold temperature resistant polymer helps the cable maintain its flexibility, especially during cold weather installations that require the cable to be bent frequently. Visit https://zurl.co/NBEK for more information.