The Mircom FH-400-LF-RR is a red wall and ceiling mount low-frequency sounder. Specifically, it produces a 520 Hz ±10% square-wave tone for sleeping areas under NFPA 72.
First, the FH-400-LF-RR runs on 24 VDC regulated or full-wave rectified power. Then, DIP switches set the audible pattern and volume in the field. As a result, one device covers multiple notification cadences without reordering.
In addition, the sounder mounts to single gang, double gang, or 4-inch square back boxes. Furthermore, it works for both wall and ceiling installations. Therefore, the FH-400-LF-RR suits sleeping rooms in dorms, hotels, and assisted-living facilities.
Mircom FH-400-LF-RR Key Features
- 520 Hz ±10% square-wave low-frequency tone for NFPA 72 sleeping-area compliance
- Red housing for fire alarm notification use
- Wall or ceiling mount on common back boxes
- Selectable audible patterns: Temporal 3, Temporal 4, Continuous, 20 BPM
- High and low volume settings via DIP switch
- Dual power compatibility: 24 VDC regulated or full-wave rectified
- Low current draw design for NAC budget headroom
- Synchronization via Mircom MGC protocol or MIX-4050 sync module
- UL 464, ULC S525, NFPA 72 listed
Mounting Options
- Single gang back box
- Double gang back box
- 4-inch square back box
- Wall or ceiling orientation
Where the FH-400-LF-RR Fits
First, NFPA 72 requires 520 Hz low-frequency tones in newly constructed commercial sleeping areas. Then, the FH-400-LF-RR delivers that tone from a single fire-alarm-only device. As a result, designers can meet code in hotel guest rooms, dorm rooms, and similar occupancies without separate audio gear.
Order or Get Application Help
Life Safety Consultants stocks Mircom 400 Series sounders and horn/strobes along with sync modules and back boxes. To order or to plan NAC capacity, call 1-888-557-0558. Alternatively, email sales@lifesafetycom.com.
For more information, contact the Life Safety Consultants team at (888) 557-0558, or email us at: sales@lifesafetycom.com
Additional information
| Weight | 1.5 lbs |
|---|---|
| Dimensions | 9.5 × 8 × 5 in |
| Condition | New |
| Manufacturers | Mircom |
| Part Type | Horn / Strobe |
