Accentra M200F-8 Removable Mullion – 8ft 3-Hour Fire-Rated Steel Door Post
*** Specifically engineered for use with 1800F, 2100F, and 7100F Series Fire-Rated Exit Devices. ***
The Accentra M200F-8 Removable Mullion (formerly Yale) is a heavy-duty, life-safety component designed to secure double door openings that require a 3-hour fire rating. This 8ft steel mullion acts as a fixed vertical strike post, allowing two independent rim exit devices to latch securely. When the opening must be cleared for moving large equipment or furniture, the mullion can be removed quickly, restoring the full width of the entryway.
Constructed from 2" x 3" tubular steel and finished in a protective red primer, the Accentra M200F is the industry standard for high-traffic institutional and commercial fire-rated partitions. This UL-listed fire hardware is essential for Commercial Door Hardware specifications that demand the highest level of structural integrity and building code compliance.
Function Info: Fire-Rated Removable Mullion (M200F-8)
- 3-Hour Fire Rating: Rigorously tested and UL/cUL listed for use on fire-labeled double door assemblies.
- Rim Exit Device Support: Engineered to provide the mounting surface and strike engagement for 1800F, 2100F, and 7100F series fire-rated rim panic bars.
- Field Customizable: The 8-foot height is designed to be field-cut by the installer to provide a precision fit for your specific door frame height.
- Structural Security: Eliminates "door play" in double openings by providing a rigid center post for the latches to grip, significantly increasing the forced-entry resistance of the pair.
Key Features & Performance
- Heavy-Wall Tubular Steel: Built from 2" x 3" steel tubing, providing the thermal and mechanical mass required to maintain a fire barrier during an emergency.
- Red Primer Finish: Supplied with a durable industrial primer that prevents oxidation and serves as a high-adhesion base for field painting.
- Removable Versatility: Features a specialized top and bottom fitting system that allows for easy removal while ensuring the post remains "rattle-free" when locked in place.
- Code Compliance: Meets the strict requirements for fire-rated egress openings in hospitals, schools, and high-rise commercial corridors.
- Industrial Durability: Designed to withstand the abuse of high-frequency cart traffic and heavy-duty institutional use.
Technical Specifications
| Feature | Specification |
| Model Number | M200F-8 |
| Manufacturer | Accentra (Formerly Yale) |
| Height | 8' (96") - Field Cuttable |
| Material | Tubular Steel |
| Dimensions | 2" x 3" Profile |
| Fire Rating | 3-Hour Fire Rated (UL Listed) |
| Finish | Red Primer |
| Device Compatibility | 1800F, 2100F, 7100F Series (Fire Rated) |
Installation Note
The Accentra M200F-8 is a structural fire-rated component and must be installed with the appropriate fire-rated top and bottom fittings to maintain its 3-hour rating. The mullion must be cut to the exact height of the opening to ensure the fire-rated strikes align perfectly with the exit devices.
| Mullion Spacer M203 Option | Add for Mullion Spacer M203 (5-6 Day Lead time) |
| Brand | Accentra (formally Yale Security) |
| Series | Accentra - 1800 Series, Accentra - 2100 Series, Accentra - 7000 Series |
| Fire Rated | Fire Rated |
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