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XD Deflection Couplings

XD deflection couplings from Eaton's Crouse-Hinds Division can be installed indoors, outdoors, buried underground or embedded in concrete in non-hazardous areas.  XDs provide a flexible and watertight connection for protection of conduit wiring systems from damage due to movement.  They are used with standard rigid conduit or PVC rigid conduit (PVC requires rigid metal conduit nipples and rigid metal-to-PVC conduit adapters). All XDs come standard with a hot dip galvanized finish for added corrosion protection against harsh environmental factors.

Typical applications for XD deflection couplings include underground conduit feeder runs, runs between sections of concrete subject to relative movement, runs between fixed structures, conduit entrances in high rise buildings, bridges, marinas, docks and piers.

Certifications and compliances

  • UL standard: 514B
  • CSA 22.2 No. 18 3-12
  • Wet locations

Design features

  • XD couplings accommodate the following movements without collapsing or fracturing the conduit, and damaging the wires it contains:
    1. Axial expansion or contraction up to 3/4”
    2. Angular misalignment of the axes of the coupled conduit runs in any direction to 30°
    3. Parallel misalignment of the axes of coupled conduit runs in any direction to 3/4”
  • Inner sleeve provides a smooth insulated wireway for protection of wire insulation
  • Watertight flexible neoprene outer jacket is corrosion-resistant and protects the grounding strap and the attachment points of the hubs
  • Tinned copper flexible braid grounding straps assure grounding continuity
  • Stainless steel jacket clamps for strength and corrosion resistance
  • Standard tapered electrical threads fit standard rigid conduit
  • Integral hub bushing protects insulation of conductors

Standard materials

  • Hubs – Feraloy iron alloy, hot dip galvanized
  • Outer jacket – molded neoprene, natural (black)
  • Jacket clamps – stainless steel, natural
  • Inner sleeve – neoprene polyester fabric with steel coil
  • Bonding strap – braided tinned copper

Drawings and design support