Wheelock® Series CVX/CSX Explosion-Proof Bells
Rugged Audible Signaling for Hazardous Locations
The Wheelock® Series CVX/CSX Explosion-Proof Bells from Kidde Fire Systems are engineered for Division One hazardous location applications, delivering reliable audible notification in environments where explosive gases, vapors, or dusts may be present.
Constructed with a heavy-duty cast aluminum enclosure and a corrosion-resistant red enamel finish, these bells combine high performance, long service life, and uncompromising safety for both indoor and outdoor installations. With their rugged housing, hinged cover, and protective guard on outdoor models, they’re ideal for oil and gas facilities, refineries, chemical plants, and other demanding industrial applications.
Key Advantages
- Explosion-Proof Construction
Certified for use in hazardous atmospheres, ensuring safety in volatile environments. - High-Performance Output
Produces 87–90 dBA sound output at 10 feet for clear and powerful signaling. - Durable & Corrosion-Resistant
Heavy-duty cast enclosure and red enamel finish withstand harsh weather and industrial conditions. - Flexible Mounting
Available in 24 VDC and 115 VAC models for indoor or outdoor applications.
- Maintenance Friendly
Hinged cover design simplifies service and inspection. - Protective Guard
Outdoor versions include a factory-installed guard to prevent impact damage. - Reliability You Can Trust
Engineered to meet the highest fire protection and life safety standards for hazardous environments.
Applications
The Wheelock CVX/CSX Bells are ideal for:
- Oil and gas refineries and fuel storage facilities
- Chemical processing plants and manufacturing sites
- Dust-heavy environments such as mills or grain elevators
- Marine and offshore installations requiring corrosion resistance
- Industrial facilities needing Class I or Class II compliance
System Architecture
Construction & Design
Housing: Cast aluminum, explosion-proof enclosure with hinged cover
Finish: Durable red enamel coating for visibility and corrosion protection
Protective Features: Outdoor models include impact-resistant guard
Mounting: Compatible with standard conduit connections for secure installation
Wiring: Field-wirable terminals inside sealed housing
Technical Specifications
| SPECIFICATION | DETAILS |
|---|---|
| Input Voltage | 24 VDC or 115 VAC |
| Sound Output | 87–90 dBA @ 10 ft (3 m) |
| Enclosure Type | Cast aluminum, explosion-proof |
| Mounting Options | Indoor or outdoor models available |
| Housing Finish | Red enamel, corrosion-resistant |
| Protective Guard | Standard on outdoor models |
| Temperature Range | –40°F to +150°F (–40°C to +66°C) |
| Weight | Approx. 9.5 lb (4.3 kg) |
Compliance & Certifications
- UL Listed for Hazardous Atmospheres
- Class I, Groups B, C, D
- Class II, Groups F, G
- Factory Mutual (FM) Approved
- California State Fire Marshal (CSFM) Listed
- Meets NFPA 72 requirements for audible notification appliances
Resources
Data Sheet: Wheelock® Series CVX/CSX Explosion-Proof Bells (K-75-003)
Kidde Fire Systems Capabilities Brochure (BR101_2023)
Resource links coming soon!
Built for Hazardous Duty. Certified for Safety.
The Wheelock® Series CVX/CSX Explosion-Proof Bells provide reliable, high-output signaling for the world’s most demanding environments. Designed for hazardous locations where performance and protection are critical, they deliver durable construction, superior audibility, and long-term dependability.
