Product Name
3M™ Fire Barrier Pass‑Through Device Round
Product Description
3M™ Fire Barrier Pass‑Through Device Round (SKU B40065428) is a one‑piece, round hinged metal enclosure engineered for through‑penetration firestop assemblies. It features factory-installed intumescent and foam smoke seals that deliver up to 3 hr fire resistance (ASTM E814/UL 1479) and effective smoke and toxic gas blocking.
Key Benefits
- Up to 3 hr Fire Rating: Complies with ASTM E814/UL 1479 and ASTM E84 standards.
- Re‑Enterable Design: Hinged enclosure allows easy access for adding or removing cables and pipes.
- Smoke & Gas Seal: Foam seals prevent cold and hot smoke while helping maintain toxic gas barriers.
- Quick Installation: Fits standard hole saw or core bit openings; no adhesives required.
Best For
- Telecom, data, and electrical cables
- Plastic and metal pipes—single or combined
- Through-wall and through-floor applications in new or retrofit construction
- Re‑enterable zones requiring frequent access
- Rated assemblies requiring fire and smoke protection
- Compact round penetrations typical of 2″–4″ diameter openings
Product Properties
| Property | Specification |
|---|---|
| SKU | B40065428 |
| Product Type | Round Pass‑Through Device |
| Fire Rating | Up to 3 hr (ASTM E814/UL 1479) |
| Smoke Seal | Foam smoke seal—hot & cold |
| Construction | Hinged round metal enclosure with intumescent core |
| Re‑Entry | Yes—ccessible for maintenance |
| Installation | Fits standard round holes; no adhesives |
