• Dual-Voltage System Flexibility: Combines high-efficiency 12VDC and 24VDC operations into a single conventional notification appliance
• Ultra-Low Energy Draw Profile: Engineered to provide up to 48% energy savings in current draw over traditional competitive horn models
• Enhanced Notification Architecture: Multi-mode options collapse standard SKU inventories down by consolidating 3 distinct audible configurations
• Spliceless Universal Wiring Base: Includes a common retrofit wall base designed for limited space or pre-existing layout updates
• Integrated Dust Shunt Cover: Ships factory-complete with a specialized protective cover shield to protect internal terminals from construction debris
• Real-Time Pre-Wire Diagnostics: Built-in contact plate structure acts as a shunting tool to check for line grounds before mounting
• Multi-Box Mounting Compatibility: Built-in mounting slots map cleanly across 1-gang, 2-gang, 4-inch square, and octal junction box shapes
• High-Output Audio Signaling: Generates a clear, high-penetration 80 dBA emergency alert tone tailored for internal facility evacuation
• Fast Maintenance Test Points: Integrated front voltage test pins enable quick field troubleshooting and multi-point meter spot checking
• Premium Code Compliance: Fully certified and listed under strict UL and ULC life safety guidelines for fire protective audible signaling
The Cooper EL-HNR conventional wall-mounted indoor audio fire horn represents a premium life-safety notification appliance belonging to the industry-leading Wheelock Eluxa product family. Specifically styled with a sleek, low-profile thermoplastic housing, this high-performance sounder offers architects, consulting engineers, and facility managers a highly aesthetic device that seamlessly integrates into modern interior architectures while delivering maximum life-safety sound distribution.
By engineering advanced energy efficiency directly into the audio circuitry, the high-performance Cooper EL-HNR drastically cuts system power requirements. Operating cleanly across both 12VDC and 24VDC configurations, it provides an exceptional 48% savings in loop current draw compared to legacy horn models, allowing system integrators to wire significantly more signaling devices per individual Notification Appliance Circuit (NAC) branch.
Installation simplicity is a core hallmark of this advanced notification appliance. The Cooper EL-HNR introduces an intuitive pre-wire system design that allows contractors to safely verify structural branch circuit wiring and identify ground faults prior to clipping the delicate electronics housing into place.
Featuring an innovative terminal interface block protected by a reusable construction contact cover, the robust Cooper EL-HNR hardware remains completely immune to paint overspray, job site dust, and accidental terminal damage. This provides an error-free, low-maintenance deployment path across commercial offices, educational facilities, or institutional medical centers.
When managing large-scale multi-zone life safety infrastructures, deploying the Cooper EL-HNR ensures that tone alerts are broadcast reliably while keeping circuit power constraints optimal. This balanced operational blueprint makes the Cooper EL-HNR a standard choice for modern system upgrades.
Verify precise technical waveform parameters, alarm current draw limits, and detailed wiring diagrams in the official manufacturer submittal document: eaton-fire-eluxa-horn-datasheet-td450157.pdf. You can cross-verify all international design safety compliance registries directly through the official UL Product iQ Directory.
| Property | Specification Details |
|---|---|
| Brand / Product Line | Eaton Cooper Wheelock (Eluxa Family) |
| Catalog Part Number | ELHNR |
| Global Barcode UPC | 786697009525 |
| Life Safety Industry Standards | UL Listed, ULC Listed, FM Approved, CSFM Compliant |
| Device Functional Type | Conventional Fire Alarm Notification Horn / Audio Sounder |
| Operational Supply Voltage | 12V DC / 24V DC Option Grid (In One Appliance) |
| Audio Output Threshold | 80 dBA nominal life safety sound pressure level |
| Chassis Material & Housing Finish | Premium UV-stabilized structural fire-retardant plastic / High-gloss red |
| Environmental Application Index | Indoor Dry Use Wall Mount Configuration Only |
| Audible Settings Matrices | 3 distinct field-selectable audible settings |
| Operating Temperature Window | 32°F to 122°F (0°C to 50°C) building interior parameters |
| Relative Humidity Boundary | Up to 93% RH non-condensing climate limits |
| Physical Dimensions (H x W x D) | 4.75″ Length x 2.78″ Width x 1.3″ Depth profile dimensions |
| Net Appliance Weight | 0.328 lbs (Highly minimized weight footprint) |
Q1: What makes the Wheelock Eluxa series superior to older conventional horns?
A: The primary advantage is ultra-low current draw driven by advanced internal circuitry. This allows system designers to drop circuit power loads dramatically, letting you pack significantly more audible devices onto a single NAC circuit and saving massive material costs by needing fewer hardware power expansion panels.
Q2: Can I use this sounder unit for a project running on a 12V system instead of 24V?
A: Yes, absolutely. The device features an intelligent combined voltage matrix right out of the box. This multi-voltage architecture allows the exact same appliance to function flawlessly across both 12VDC and 24VDC system loops without needing any hardware module swaps.
Q3: How does the integrated plastic contact cover assist during the building construction phase?
A: The plastic contact cover keeps the main landing terminals immune from dust, concrete debris, drywall texture spray, and paint. Additionally, it contains an internal shunting short plate that bridges the wiring path, allowing contractors to safely loop-test the circuit for breaks or line shorts prior to mounting the sounder head.
Q4: Is a specialized back box required to mount this indoor fire horn?
A: No. The back-plate layout features a universal five-point screw matrix designed to fasten directly over pre-existing global configurations. It anchors flush onto 1-gang, 2-gang, 4-inch square, 3.5-inch octal, and 4-inch octal structural box paths.
Q5: Does this specific model feature an integrated visual strobe flash or LED light matrix?
A: No, the EL-HNR is a dedicated conventional audio sounder and does not contain a visual flasher lens or high-candela strobe module. For integrated audio-visual signaling requirements, you should source the companion flashing model variants from the Eaton Eluxa product family.
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