Skip to product information
1 of 4

3M Fire Barrier Putty Sleeve Kit DT 400, 4 in, Round, 1/case

3M Fire Barrier Putty Sleeve Kit DT 400, 4 in, Round, 1/case

Regular price $152.99 USD
Regular price Sale price $152.99 USD
Sale Sold out
Shipping calculated at checkout.

3M Fire Barrier Putty Sleeve Kit DT 400 – Firestop Sleeve for Cable and Blank Applications

The 3M Fire Barrier Putty Sleeve Kit DT 400 is designed for passive fire protection in electrical and construction applications, providing a firestop solution for cable and blank openings in concrete floors, walls, concrete block walls, and gypsum wall board. This kit is ideal for electrical distributors, lighting solutions providers, wire and cable installers, and switchgear suppliers needing reliable fire and cable penetration protection. The galvanized steel sleeve and mounting brackets ensure secure installation while the included fire barrier moldable putty holds cables in place, preventing slippage and maintaining fire resistance.

Specifications

  • Manufacturer: 3M
  • Manufacturer Part #: DT400
  • Sleeve Diameter: 102 millimeters (4 inches)
  • Sleeve Length: 12 inches (304 mm)
  • Bracket Size: 8 inches x 8 inches (204 mm x 204 mm)
  • Color: Silver
  • Product Weight: 5.9 lbs
  • UPC: 051115188060
  • Fire Rating: Up to 4 hours per ASTM E814 (UL1479)
  • Application Opening Size: Minimum 4-1/2 inches (114 mm), Maximum 6 inches (152 mm)

Features

  • Complete kit includes galvanized steel sleeve, mounting brackets, screws, identification labels, and 3M Fire Barrier Moldable Putty+.
  • Innovative sleeve design with rolled-out lip for smooth cable entry and no-slip installation.
  • Bracket plates cover smooth, rough, or irregular shaped openings to fit various installation needs.
  • Easy-slit label allows quick retrofitting around existing cables without sleeve removal.
  • Red putty holds cables in position, preventing movement and maintaining firestop integrity.
  • Versatile for new construction or renovation projects.
  • UL tested and fire rated for up to 4 hours.
  • Economical solution reduces inventory with three available sleeve sizes.

Downloads & Links

View full details

HUNKSHome® — Modern Home, Kitchen & Living Essentials

HUNKSHome® is a curated modern home & living lifestyle brand delivering functional, design-forward household essentials, smart kitchenware, and everyday living upgrades for contemporary homes. Our catalog extends beyond kitchen essentials. We offer products across home organization, lighting, décor, tools and hardware, outdoor and garden, household utility, and other everyday-living categories. Our collections emphasize usability, durability, clean aesthetics, and practical innovation — built for customers who value comfort, efficiency, and refined living experiences.


HOME & LIVING COLLECTIONS

Kitchen Storage & Cookware • Smart Kitchen Tools • Home Organization • Home Furnishing • Furniture • Lighting & Lamps • Electrical & Lighting Equipment • Home Décor • Tools & Hardware • Cleaning Essentials • Everyday Home Tools

POPULAR CATEGORIES

Kitchen Gadgets • Food Preparation Tools • Storage Containers • Lighting & Décor Accessories • Outdoor & Garden • Household Helpers • Compact Living Solutions • Home Convenience Products • Lifestyle Utility Essentials

WHY CUSTOMERS TRUST HUNKSHome®

✓ Function-first product design
✓ Curated practical collections
✓ Secure checkout & trusted payment support
✓ Reliable shipping within the USA with order tracking
✓ Customer-centric support experience


POPULAR SEARCHES

Modern kitchen tools • Smart kitchen gadgets • Home organization products • Home furnishing & furniture • Lighting & lamps • Home décor accessories • Space saving kitchen solutions • Household essentials online • Kitchen storage containers • Home utility products • Daily living accessories • Practical home upgrades • Home, kitchen & living essentials USA


HUNKSHome® is operated by BlackTree Vaibhav Holdings LLC, a Wyoming limited liability company registered in the United States. We provide modern home, kitchen, and living essentials designed for practical living and contemporary lifestyles. Our catalog spans kitchen essentials, home furnishing, furniture, lighting, electrical & lighting equipment, home décor, tools & hardware, and everyday household products. Our brand focuses on functional innovation, efficient home solutions, and curated household products.

Shipping: Orders are currently shipped within the United States only.

Registered Business Address: 30 N Gould St Ste R, Sheridan, WY 82801, United States

Customer Support: hello@hunkshome.com
Phone: +1 (307) 336-7159

© 2026 HUNKSHome®. All rights reserved. Brand names and product references are for identification and descriptive purposes only.