Potter® MBA Bells
Reliable Audible Signaling for Fire and Life Safety Applications
The Potter® MBA Bells from Kidde Fire Systems are engineered for public mode signaling in accordance with NFPA 72, offering long, continuous, high-decibel alerts with minimal current draw. These bells are designed to provide clear and penetrating audible notification across fire and life safety systems, ensuring immediate awareness when seconds matter.
With a low-frequency shell design and durable red enamel finish, Potter MBA bells deliver exceptional performance, visibility, and reliability in both commercial and industrial environments.
Key Advantages
- High-Performance Output
Produces a loud, continuous ring with high dBA output and low current consumption. - Low-Frequency Resonance
Designed for superior audibility and sound penetration in large or noisy areas. - Durable Construction
Red, smooth-finish housing improves appearance and corrosion resistance.
- Easy Installation
Mounts directly to a standard 4-inch electrical backbox for simple setup. - Multiple Shell Sizes
Available in 6-inch and 10-inch models to accommodate application requirements. - System Compatibility
Ideal for use with Kidde Fire Systems suppression and detection platforms.
Applications
The Potter MBA Bells are ideal for:
- Fire alarm systems in public and commercial buildings
- Manufacturing and industrial environments requiring clear audible notification
- Public assembly areas where NFPA 72 compliance is mandatory
- Integration with suppression systems and notification circuits for comprehensive system signaling
System Architecture
Construction & Design
Housing: High-quality steel bell with red powder-coated finish for durability and visibility.
Mechanism: Precision-engineered motor assembly for long, continuous tone.
Mounting: Standard 4-inch (101 mm) square electrical backbox (indoor use).
Operating Environment: Rated for –30°F to +150°F (–34°C to +66°C).
Maintenance: Designed for long life with minimal service needs under normal conditions.
Technical Specifications
| SPECIFICATION | DETAILS |
|---|---|
| Input Voltage | 24 VDC |
| Sound Output (Typical) | 95 dBA (6 in. model) / 85 dBA (10 in. model) @ 10 ft (3 m) |
| Sound Output (Minimum) | 77 dBA (6 in.) / 80 dBA (10 in.) |
| Current Draw | 20 mA (Max) |
| Temperature Range | –30°F to +150°F (–34°C to +66°C) |
| Mounting | Standard 4 in. square electrical backbox |
| Shell Sizes | 6 in. (150 mm), 10 in. (250 mm) |
| Housing Finish | Red smooth enamel |
| Frequency Range | Low-frequency tone for enhanced audibility |
Compliance & Certifications
- UL Listed (UL 464)
- ULC Listed (CAN/ULC-S525-07)
- Factory Mutual (FM) Approved
- California State Fire Marshal (CSFM) Listed
- Designed for NFPA 72 public mode signaling
Resources
Data Sheet: Potter® PDC Bells (K-75-022)
Kidde Fire Systems Capabilities Brochure (BR101_2023)
Resource links coming soon!
Audibility That Commands Attention
The Potter® MBA Bells set the standard for clarity, reliability, and compliance in fire and life safety systems. With precision engineering, long-lasting performance, and easy installation, these bells ensure every alarm is heard — and every response is immediate.
