Belden's XL-Dur® & SIS Wire is available through Allied Wire and Cable, an authorized distributor of Belden Cable products. These two types of Belden Hook-up Wire meet many standards of quality and follow UL and CSA guidelines.

According to Belden, XL-Dur is their proprietary blend of thermoset, chemically cross-linked polyethylene. It shares many of the same properties as Hypalon without the high cost. XL-Dur Hook-Up Wire is moisture and solvent resistant, and it performs well in high-temperature situations where flexibility isn't a necessity. Due to its exceptional physical and electrical properties, Xl-Dur brand insulation is ideal for use in a large variety of applications.  

Belden XL-Dur Hook-Up Wire is available in a variety of UL styles: UL 3173, UL 3195, UL 3196, UL 3436, UL 3321, and UL 3199. UL Style 3199 XL-Dur Hook-Up Wire features cross-linked, extruded polyethylene insulation and a stranded tinned copper conductor. UL Styles 3173, 3195, 3196, 3436, and 3321 all conform to CSA Type CL1251.

Belden's SIS Wire is UL compliant, with 600V and +90°C ratings. It comes a with a separator and stranded tinned copper conductor. SIS wire is suitable for use in switchboards, panelboards, and distribution boards.