The Notifier ACT-70 Audio Coupling Transformer is a precision-engineered signal conversion component designed for professional fire alarm and voice evacuation systems. This transformer provides critical audio level matching functionality in complex commercial fire detection and communication infrastructures, enabling seamless signal transmission between high-voltage audio circuits and low-impedance audio input stages.
Engineered specifically for integration with Notifier addressable control panels and distributed audio amplification systems, the ACT-70 steps down 70.7 VRMS audio signals to low-level audio outputs. This voltage transformation is essential for maintaining signal integrity and preventing potential equipment damage during audio communication pathway connections, particularly in large-scale commercial, institutional, and industrial facility fire alarm networks.
Key Features
- Precise 70.7 VRMS to low-level audio signal conversion
- Compatible with Notifier DAA-5070 distributed audio amplification modules
- Robust electrical isolation between high and low voltage circuits
- Compact form factor for streamlined panel and rack installations
- Designed for consistent performance in challenging environmental conditions
- Compliant with NFPA 72 fire alarm communication standards
Specifications
- Input Voltage: 70.7 VRMS
- Output: Low-level audio signal
- Mounting: Standard electrical panel integration
- Temperature Range: 32°F to 120°F (0°C to 49°C)
- Relative Humidity: 10% to 93% non-condensing
Typical installation environments include commercial office complexes, healthcare facilities, educational campuses, transportation hubs, and multi-story industrial complexes with centralized fire detection and voice evacuation systems. The ACT-70 ensures reliable signal transformation in addressable fire alarm panels, distributed audio amplification networks, and emergency communication infrastructure.
Professional installers will appreciate the transformer’s robust design, which supports seamless integration with Notifier’s comprehensive fire alarm and emergency communication product ecosystem. Precision engineering and rigorous quality control make the ACT-70 a dependable component for maintaining critical life safety communication pathways.
For more information, contact the Life Safety Consultants team at (888) 557-0558, or email us at: sales@lifesafetycom.com
Additional information
| Weight | 0.2 lbs |
|---|---|
| Dimensions | 6 × 3.5 × 1.75 in |
| Condition | New |
| Manufacturers | Notifier |
| Part Type | Replacement Part |







