Description
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.
⚙️ Key Cooper EL-HNR Conventional Notification Capabilities
- Dual-Voltage Operational Freedom: Integrates dual 12 VDC and 24 VDC capabilities inside a single hardware unit, allowing the exact same model to adapt seamlessly to varying electrical site layout parameters.
- 80 dBA Penetrating Fire Tone: The Cooper EL-HNR emits a standardized, high-clarity single emergency tone designed to cross background environmental ambient noises cleanly for immediate human recognition.
- Pre-Wire Fault Diagnostic Tracker: Terminal base features 1/16-inch deep mounting error relief built right into the plate, enabling instant voltage checking and terminal troubleshooting.
- Aggressive SKU Consolidation: Multi-setting audible design allows one physical device model to cover up to nine legacy configurations, significantly narrowing inventory tracking demands.
🔒 Advanced Enclosure Engineering & Universal Mounting
- Sleek Low-Profile Casing: Molded from premium red fire-retardant plastic to combine eye-catching visibility with a compact, modern layout that fits flush against wall surfaces.
- Five-Point Base Adaptability: The underlying back-plate layout features versatile screw slots that mount directly to 1-gang, 2-gang, 4-inch square, 3.5-inch octal, and 4-inch octal box fittings.
- Integrated Shunting Protection: Temporary plastic shield loops allow installers to loop-test lines safely during active facility construction without risking voltage damage to final audio components.
- Drastic Power Capital Reductions: Drastically slashes overall infrastructure requirements by reducing the number of external NAC auxiliary power booster supplies needed across multi-zone loop networks.
📋 Engineering & Architecture Resources
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.
Technical Specifications Table
| 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) |
Frequently Asked Questions (FAQ)
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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