The Simplex (478-373) Toroid transformer represents a critical component in commercial fire alarm and notification systems, engineered to provide robust voltage transformation for speaker circuits in complex life safety infrastructure. Designed specifically for professional fire alarm installers and facilities management teams, this precision-manufactured transformer ensures consistent power delivery and signal integrity across commercial and industrial fire detection environments.
Utilizing advanced toroidal core technology, the 478-373 transformer delivers superior electromagnetic performance compared to traditional laminated core designs. Its compact form factor enables seamless integration into addressable fire alarm panels, emergency notification systems, and distributed audio communication networks found in high-rise office complexes, healthcare facilities, educational campuses, and critical infrastructure installations.
Key Features
- 120V primary input with precision-wound secondary windings for consistent voltage transformation
- Low magnetic flux leakage design minimizes electromagnetic interference in sensitive alarm circuits
- Constructed with high-grade electrical steel core for enhanced thermal stability and energy efficiency
- UL Listed and compliant with NFPA 72 National Fire Alarm and Signaling Code requirements
- Engineered for extended operational lifespan in continuous-duty commercial fire alarm applications
- Compatible with multiple Simplex addressable notification appliance circuits (NAC)
Specifications
- Input Voltage: 120VAC
- Mounting: Standard electrical backbox compatible
- Operating Temperature Range: -20°F to 150°F
- Regulatory Compliance: UL 464, UL 268, NFPA 72
Professional installers will appreciate the transformer’s robust construction and precise engineering, which supports reliable performance in demanding fire alarm system deployments. Whether integrated into new construction or retrofit emergency notification infrastructure, the Simplex 478-373 offers the technical reliability required by commercial fire protection professionals.
For more information, contact the Life Safety Consultants team at (888) 557-0558, or email us at: sales@lifesafetycom.com
Additional information
| Weight | 6.9 lbs |
|---|---|
| Dimensions | 9.7 × 7.8 × 6.4 in |
| Condition | New |
| Manufacturers | Simplex |
| Part Type | Speaker |
