The Eaton ELFHSW is a Wheelock Eluxa low-frequency sounder-strobe for fire alarm service. It is a wall-mount appliance with a white housing, FIRE lettering, integrated LED strobe, and 24 VDC operation.
First, the audible produces a 520 Hz tone that meets NFPA 72 low-frequency requirements for sleeping rooms. Then, the LED strobe flashes once per second at a 20 ms pulse duration. As a result, the ELFHSW satisfies both audible and visual notification requirements in a single appliance.
Eaton ELFHSW Candela and Sound
The strobe intensity is field selectable: 110 cd or 177 cd. In addition, the audible offers three patterns: Continuous, T3 fire, or T3/T4 fire/CO sync control. Therefore, one SKU covers a wide range of sleeping-area room sizes.
- Strobe candela: 110 or 177 cd (field selectable)
- 520 Hz low-frequency tone
- UL 464 sound output: 80 dBA at 24 VDC reverberant
- ULC S525: 85 dBA at 24 VDC
- 20 ms LED strobe flash duration (NFPA 72 2016)
- UL/ULC max RMS current: 164 mA @ 110 cd, 256 mA @ 177 cd
Electrical and Synchronization
The ELFHSW operates from 16 to 33 VDC or VFWR (24 V only). Also, the strobe synchronizes via Wheelock DSM Sync Modules or PS Power Supplies using Wheelock’s patented sync protocol. Furthermore, the audible silences while the strobe remains active when wired through a sync module.
Mounting and Listings
The ELFHSW ships with a hinged mounting plate. Specifically, it accepts ELSPKBB wall backboxes, single-gang backboxes, or 4-inch square boxes. In addition, the appliance is listed under UL 1971, UL 1638, UL 464, CAN/ULC-S525, CAN/ULC-S526, CSFM, RoHS, and FCC Part 15.
Wall dimensions: 6.35 in H x 4.56 in W x 1.54 in D. Also, the UV-stabilized engineered-plastic housing exceeds UL 94V-0 flammability rating.
Order the Eaton ELFHSW
Life Safety Consultants stocks Eluxa low-frequency sounders and sounder strobes. To order or to confirm sleeping-area coverage calculations, 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 | 1.6 lbs |
|---|---|
| Dimensions | 5.3 × 7 × 5.3 in |
| Condition | New |
| Manufacturers | Wheelock |
| Part Type | Replacement Part |







