Product Description
FV4008BN EA FC3 LD 628 98 36 Detex V40 Series Rim Exit Device — Exit Alarm Hardwired AC/DC, Fire Command Input, Less Dogging, Satin Aluminum Clear Anodized
When battery-powered alarms aren't reliable enough for your monitored exit, the Detex FV4008BN with hardwired exit alarm connects directly to your building's 24VAC/DC power and alarm panel. Zero battery failures, zero missed alerts.
This is a fire-rated device. UL listed for up to 3-hour fire-rated door assemblies. Required for fire-rated openings per NFPA 80.
Technical Specifications
| SKU | FV4008BN EA FC3 LD 628 98 36 |
| Series | Detex V40 Value Series |
| Mount Type | Rim |
| Stile | Narrow Stile, Fire Rated |
| Grade | ANSI/BHMA Grade 1 |
| Function | Exit Alarm Hardwired AC/DC, Fire Command Input, Less Dogging |
| Finish | Satin Aluminum Clear Anodized (628) |
| Fire Rating | UL Listed, up to 3-Hour Fire Door |
| Device Length | 36" |
| Power | 24VAC/DC |
Compliance and Codes
- ANSI/BHMA A156.3 Grade 1 — highest commercial grade for panic hardware. Tested to 1,000,000 cycles.
- UL 305 — listed panic hardware for means of egress.
- UL 10C / UL 10B — fire-rated door assembly listed. Meets NFPA 80 requirements.
- ADA Compliant — operates with less than 15 pounds of force.
Function Details
- Hardwired exit alarm sounds 100dB when door is opened. Requires 24VAC/DC power supply — no battery replacement worries.
- Includes fire command (FC3) input for integration with building fire alarm panel. Releases device on alarm signal.
- No dogging mechanism — door latches every time it closes. Required for fire-rated openings where code prohibits dogging.
What's in the Box
- Detex FV4008BN Rim Exit Device
- Mounting hardware and template
- Installation instructions
Note: Power supply sold separately — 24VAC/DC required. We recommend Altronix or similar UL-listed supply.
Pro-Installer FAQ
Can this device be cut down for narrower doors?
Yes, the pushbar can be field-cut for doors narrower than standard width. Measure carefully and cut from the hinge end only. The lock stile end must remain factory length for proper strike engagement.
How loud is the alarm?
The exit alarm produces approximately 100dB at 3 feet — comparable to a car horn. Loud enough to deter and alert without causing hearing damage for brief exposure.
Can I add dogging to a fire-rated device?
No. Fire-rated openings require positive latching on every door closure per NFPA 80. This is why fire-rated models come with LD (Less Dogging) — dogging of any kind voids the fire rating.
Why Lock Depot? We specialize in commercial exit hardware. Factory-sealed, Grade 1 Detex devices ship same day on available stock. Need help specifying the right device for your opening? Call us.
Product images are representative and may not depict the exact SKU, finish, or configuration listed. Always verify specifications before ordering.
