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Developed in 1988, ERICO CADWELD EXOLON connections represented a significant advancement in welded electrical connections for sensitive indoor applications like data centers, hospitals, and other clean room environments. The virtual elimination of smoke and a unique electronic starting system makes this an ideal solution for sensitive applications. Each ERICO CADWELD EXOLON package contains ceramic filters that produce an extremely low emission connection.


  • Forms a permanent, low resistance connection
  • Provides a molecular bond
  • ERICO CADWELD Exothermic Connections are rated with the same current capacity as the conductor
  • Portable installation equipment with no external source of power required
  • Installers can be easily trained to make ERICO CADWELD Exothermic Connections
  • Connections can be visually inspected


Part Number XLTAD3Q3QS
Mold Family TA
Conductor 1 500 kcmil Concentric
Conductor 1 Outer Diameter, Nominal 0.813"
Conductor 2 500 kcmil Concentric
Conductor 2 Outer Diameter, Nominal 0.813"
Split Crucible No
Wear Plates No
Mold Only No
Welding Material XL300, Sold Separately
Handle Clamp XLL159, Sold Separately
Price Key XLD
Baffle Assembly XLB973A1, Sold Separately
Ease of Use Preferred
Standard Packaging Quantity 1 pc
UPC 78285656247
A gap between conductors may be required. See mold tag for more information.

Pentair, CADDY, CADWELD, CRITEC, ERICO, ERIFLEX, ERITECH and LENTON are owned by Pentair or its global affiliates. All other trademarks are the property of their respective owners. Pentair reserves the right to change specifications without prior notice.