Resonating Horn, 120VAC - Resonated column of air generates sound. Model 55 produces 105 dBa at 10 feet (115 dBa at 1m). Model 56 produces 106 dBa at 10 feet (116 dBa at 1m). Indoor/outdoor use. Corrosion resistant cast aluminum housing and spun brass projector. Gray enamel paint coating. Weatherproof, water and dust-tight. FM Approved. Model 55 (120VAC), Type 3R is UL Listed and CSA Certified.
Modified Industry Description
120V SNGLE PROJECTOR RESONATING HORN
Federal Signal 55-120-1 Electric Resonating Horn, 120 VAC, 3 A, 115/105 dB, Indoor/Outdoor, Gray, Specifications Met: UL/cUL Listed, CSFM Approved, CSA Certified
Models 55 and 56 are electric horns that produce sound by means of a diaphragm, which resonates a column of air. With greater output than a vibrating horn, the resonating horn can be used wherever a louder, more powerful alert is needed. These projectors are designed to match the frequency of the vibrating diaphragm to produce a smooth tone. The housings are tapped for 1/2 in conduit. Models 55 and 56 have sufficient output to penetrate through high ambient noise levels and have a duty cycle of five minutes on, five minutes off.