Federal Signal 31X-120-3 31X Series Explosion-Proof Horn, 120VDC, Gray

Deliver reliable, high-decibel audible alerts where safety matters most. The Federal Signal 31X-120-3 Explosion-Proof Horn is engineered for hazardous locations, providing a dependable alarm solution for industrial, processing, and utility sites. Built with a corrosion-resistant, copper-free cast aluminum housing and stainless-steel diaphragm, this explosion-proof horn resists harsh environments and minimizes downtime. The unit operates on 120 VAC and produces up to 110 dB at 1 meter (100 dBA at 10') to ensure clear audible coverage in noisy facilities. Certified for Class I, Division 1, Groups C & D and Class II, Division 1, Groups E, F & G, and backed by UL/cUL and CSA listings, it helps you meet stringent safety and regulatory requirements. Pipe or surface mounting options make it straightforward to install with existing alarm, security, surveillance, and monitoring systems. Ideal for refineries, chemical plants, manufacturing floors, and other hazardous areas, the 31X-120-3 delivers durable performance and easier integration. Specify this Federal Signal explosion-proof horn to strengthen your physical security and alarm strategy — contact our sales team to order or request installation guidance.

• Provides dependable, high-volume audible alerts for hazardous industrial environments, improving worker safety and incident response
• Certified for Class I, Division 1 and Class II hazardous areas with UL/cUL/CSA listings to simplify regulatory compliance
• Robust, corrosion-resistant copper-free cast aluminum housing and stainless-steel diaphragm reduce maintenance and extend service life
• Produces 110 dB @ 1 m (100 dBA @ 10') to overcome heavy machinery noise and integrate with security and monitoring systems
• Flexible pipe or surface mount design for easy installation in retrofit or new-build security, surveillance, and alarm applications