Description
Broadcast voice pages and alarm tones in refineries, chemical facilities, grain silos, and paint booths with the Valcom S-660A, a 30-watt explosion-proof horn rated Class I Division 1 for use in hazardous locations where standard electrical equipment is not permitted.
The Telecom Spot Expert Review
Class I Division 1 ratings apply to locations where flammable gases or vapors are present continuously, intermittently, or periodically under normal operating conditions — refineries, paint spray booths, solvent storage areas, and similar environments where conventional electrical equipment creates an ignition risk. The S-660A is purpose-built for these locations with an explosion-proof enclosure that contains any internal arcing and prevents it from igniting surrounding atmosphere. The 30-watt output handles the high ambient noise levels typical in industrial facilities — compressors, heavy machinery, and production noise all raise the floor that a paging horn has to overcome. The built-in 70V transformer connects the horn directly to standard 70V distributed speaker lines without a separate matching transformer. Facilities requiring explosion-proof audio equipment often also need documentation of the product's hazardous location rating for compliance and insurance purposes.
Key Features
- 30-watt explosion-proof horn for hazardous locations
- Class I Division 1 rated — suitable for areas with flammable gases or vapors
- Built-in 70V transformer for direct connection to distributed speaker lines
- High output for cutting through industrial ambient noise
- Designed for refineries, chemical plants, paint booths, and grain storage facilities
Technical Specifications
| Model | S-660A |
|---|---|
| Type | Explosion-Proof Horn Speaker |
| Input Power | 30W |
| Speaker Line Voltage | 70V |
| Transformer | Built-in 70V |
| Hazardous Location Rating | Class I Division 1 |
| Operating Environment | Hazardous locations, industrial |