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3M Fire Barrier PT4SD Pass Through Device

Brand: 3M Mfg#: PT4SD
Product#: 479PT4SD
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A firestop solution for electrical, data, communications cable or pipes penetrating fire-rated floors or walls. Ideal for vital telecom equipment, especially in high-traffic areas where cable is constantly being added or removed


  • Warning label and illustrated instruction guide on device for easy installation and code compliance review
  • Re-enterable firestop device for blank openings, single or multiple penetrants in new or retrofit construction
  • UL classified L rating, hot and cold smoke seal (achieved with foam smoke seals and 3M fire barrier sealant or putty per system details)
  • Stackable for multiple penetrations (square models only)
  • Red color and prominent 3M logos help identify as a fire rated device during inspection
  • Optional mounting or stud brackets (sold separately)
  • One piece, hinged metal enclosure makes installations fast and easy
  • Firestop tested for up to 3 hr in accordance with ASTM E 814 (UL 1479)


  • Brand: 3M
  • Includes: (2) Foam End Seals
  • Color: Red
  • Construction: One Piece, Hinged
  • Standards: ASTM E 814, UL 1479
  • Fire Rating: Up to 3 hr
  • Mounting: Secure with Fire Barrier Sealant or Optional Bracket
  • Type: Square, Metal
  • Length: 4 in
  • Width: 4 in
  • Height: 4 in
  • Usage: For Electrical, Data and Communication Application