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Description
Category FIRESTOP
Page P31
Description: 
FIREBLOK's Universal Firestop Insert is intumescent thermoplastic pad used as a membrane penetration fire stop in electrical boxes maintaining the fire-resistant ratings of wall assemblies and when the horizontal separation between metallic boxes on opposite sides of the wall is less than 24𬽠apart. The insert is certified for both 1 2 hour, U300, U400, V400 and U411 wall assemblies with metal electrical boxes with plastic or metal cover plates. UFSI can be used in different box sizes from single gang boxes, 4𬽠Square boxes to 4-11/16𬽠Square boxes.
 
Features:
- 3-3/4" x 3-3/4" x 3/8"
- Volume: 2.1  Cu. In.
- Easily applied by hand
- Expansion begins @ 300°F / 148°C
- Highly Intumescent (20+ times its original size)
- Certified for both 1 2 Hour fire rated wall
- Soundproof with a STC Rating 52*
- Pre-Molded Ground Screw Openings
- Certified for both Plastic and Metal faceplates in all fire-rated walls
- Pre-Scored on the back for easy snapping and installation
- Warranted for the life of the building when stored below 130°F / 54°C
- Adheres to back of electrical box

* Tested to ASTM E90 Standard
 
Specifications:
Color White
Std Pkg 30
Master CTN 120
   
Metal Box Size:
1-Gang Box: Use half insert for max 2-1/8" x 4" x 2-1/8" in deep 1-Gang box, adheres into back of box
4S Box: Use one insert for max 4" x 4" x 2-1/8" in deep 4S box, adheres into back of box
5S Box: Use one and a half insert for max 4-11/16" x 4-11/16" x 2-1/8" in deep 5S box, one covering the inside back of the box and half insert on an internal side of the box
 
Certifications:
   FireBlok
 

Catalog Number

UPC

Description

UFSI 8-35243-02403-8 UNIVERSAL FIRESTOP INSERT FOR 1-GANG, 4" 4-11/16" METAL ELECTRICAL BOXES

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