3M™ Fire Barrier Electrical Box Inserts EBI-4, 3.25 in x 3.25 in x 3/16 in, 40 Each/Case

★★★★★ 4.7 109 reviews

US$54.80
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US$54.80
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Free shipping Free 30-day returns

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Product details

Management number 215630498 Release Date 2026/04/12 List Price US$54.80 Model Number 215630498
Category

3M™ Fire Barrier Electrical Box Inserts are a flexible, one-piece fire-rated intumescent insert used to protect electrical boxes by adhering to the inside the box. When exposed to fire, the insert expands to fill up the box preventing the spread of fire and limiting temperature rise.

  • Protection of membrane penetrations for listed metallic boxes
  • Tested in accordance with ASTM E814 (UL 1479) (Certified as a Wall Opening Protective Material, UL Category CLIV)
  • STC rating of 62 when tested in a STC 62 rated wall assembly
  • Flexible
  • Convenient slits for access to wiring
  • Great for new construction and retro fit applications
  • Full adhesive backing for easy installation
  • For industrial/occupational use only. Not for consumer sale or use
Item Weight 3.46 pounds
Manufacturer 3M
Item model number EBI-4
Product Dimensions 8.03 x 5.08 x 3.78 inches

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