Series 280HT

Image for Series 280HT - Card Lok Retainer from Schroff - North America
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Catalog Number:  280HT
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  • Weight 2.70 g/cm (.241 oz/in)
  • High thermal bracket design
  • Min expansion 11.18 mm (.440 in)
  • For cold wall applications
  • Available with black anodized, hard black anodized, or electroless nickel plating
  • Average clamp force (4.80", black anodized) = 673 lbs
  • Screw actuated
  • Length 96.5 mm (3.80 in) to 325 mm (12.80 in), 12.7 mm (0.5 in) increments
  • Profile 9.27 mm (.365 in) x 9.65 mm (.380 in)

    The 280HT features a unique bracket design that provides 15% better thermal performance compared to similarly sized Card Loks, providing superior protection for high performance applications.


    The Series 280HT features a larger profile design and is better suited to accommodate heavier Board Module Assemblies, while the bracket design provides superior cooling performance.


    From time to time, nVent may modify its product specifications to be in conformity with applicable industry, military or other relevant standards. Unless otherwise mutually agreed in writing, cancelled or superseded military specifications may be certified to the latest or superseding specifications. Products manufactured in conformity with such specifications will be deemed fully compliant whether or not you have been notified of such modifications, even if different from the original specification or those referenced by the customer.

    Average Clamp Force [lbs]:


Order Information:

  • For customized products contact or 1-800-854-7086. Please provide drawing, quality clauses, and purchase order requirements.
  • Select product specifications before modifying or adding to project list or requesting a quote.

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    Technical Data

    Recommended Gap Width PCB + 10.80 mm (.425 in)
    Recommended Torque 113 N-cm (10 in-lbs), with "L" option 163 N-cm (14 in-lbs)