The Kidde Commercial 439D-10AW-R is a robust 10-inch (250mm) electromechanical fire alarm bell designed for comprehensive notification in commercial and institutional fire detection systems. Engineered for high-reliability environments, this vibrating bell provides critical audible alarm signaling across complex facilities where immediate occupant awareness is essential during emergency events.
Specifically optimized for addressable fire alarm panels and conventional notification circuits, the 439D-10AW-R integrates seamlessly with commercial building safety infrastructures. Its rugged construction allows deployment in challenging environments including industrial facilities, healthcare complexes, educational institutions, and high-traffic commercial spaces where consistent, loud alarm performance is paramount.
Key Features
- 10-inch (250mm) diameter vibrating bell mechanism with high-decibel audio output
- 24VDC operational voltage with integrated diode for circuit protection
- Powder-coated red finish for high visibility and standard fire safety color coding
- UL Listed and compliant with NFPA 72 notification appliance requirements
- Designed for surface or flush mounting with universal mounting bracket
- Corrosion-resistant metal construction for long-term reliability
Specifications
- Voltage: 24VDC nominal
- Mounting: Surface or flush mount
- Diameter: 10″ (250mm)
- Color: Red
- Certification: UL 464, UL 268
Professional installers will appreciate the 439D-10AW-R’s compatibility with most commercial fire alarm control panels, including systems from Edwards, Simplex, Notifier, and other major manufacturers. Its reliable electromechanical design ensures consistent performance across HVAC systems, multi-story buildings, and complex facility layouts where clear, immediate notification is critical for life safety protocols.
For more information, contact the Life Safety Consultants team at (888) 557-0558, or email us at: sales@lifesafetycom.com
Additional information
| Weight | 6.2 lbs |
|---|---|
| Dimensions | 10.75 × 10.5 × 4 in |
| Condition | New |
| Manufacturers | Kidde |
| Part Type | Replacement Part |







