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Thomas & Betts Marrette XTP Wire Caps (20-pk) 329330C

Thomas & BettsSKU: 036244020



  • The Marrette® XTP is a high quality, twist-on wire connector with a unique spring and cap grip design that sets it apart from the competition.

External Cap Features:

  • Made of tough, durable polypropylene and 105°C rated to withstand high installation pressures.
  • Posi-Grip surface combines a matte finish with closely-spaced, deep grooves for superior twisting power, even when hands are greasy or damp.
  • Deep, wide throat ensures full insulation coverage.
  • Threaded entry helps guide large wire bundles into the spring chamber.

Inner Spring Features:

  • Exclusive Live ActionTM variable volume spring expands to accommodate more wires with less twisting effort, compared to other connectors with a “fixed spring” design.
  • Model #'s 329 and 330 have a round spring construction that gives a positive conductor bite to solid or stranded wires.
  • Unique copper-coated spring helps resist corrosion.
  • Approved for circuits up to 300V only


  • For copper conductor only.
  • For wire sizes between #22 - #16 (Gray); #22 - #14 (Blue)
  • Pack of 20
  • Made in Canada


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