Federal Signal Models 55 & 56 Resonating Electric Horn Horns for indoor & outdoor use. FM Approved. These weatherproof horns are water and dust tight when installed with conduit.
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![]() Supported Browsers IE, SAFARI, CHROME |
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Federal Signal Models 55 & 56 Electric Resonation Horns
Models 55 and 56 resonating electric horn horns are ideal for both indoor and outdoor use. They require minimum maintenance. Their rugged designs seal out corrosive dust and vapors. Both models have sufficient output to penetrate through high ambient noise levels.
Both models feature corrosion–resistant corrosion resistant cast aluminum housings with a brass projector. These projectors are designed to match the frequency of the vibrating diaphragm to produce a smooth musical tone. The housings are tapped for 1/2–inch conduit (swivel bracket included).
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Federal Signal Models 55 & 56 Electric Resonation Horns |
56 Resonating HornResonated column of air generates sound Produces 106dBa @ 10' (116dBa @ 1m) Indoor/outdoor use FM Approved 55 Resonating HornResonated column of air generates sound Produces 105dBa @ 10' (115dBa @ 1m) Indoor/outdoor use FM Approved Model 55 (120VAC) is UL Listed and CSA Certified |
The Federal Signal Models 55 and 56 are electric horns that produce sound by means of a diaphragm, which resonates a column of air. Because the output is greater than that of a vibrating horn resonating horns can be used wherever a louder, more powerful signal is required. | Both models feature corrosion–resistant cast aluminum housings with a brass projector. These projectors are designed to match the frequency of the vibrating diaphragm to produce a smooth musical tone. The housings are tapped for 1/2–inch conduit (swivel bracket included). |
Models 55 and 56 are finished in gray enamel and equipped with a straight projector. These weatherproof horns are water– and dust–tight when installed with conduit. | Model 55 is also UL (Underwriters Laboratories) Listed and CSA (Canadian Standards Association) Certified for indoor/outdoor use. Both models are FM Approved. Models 55 and 56 have a duty cycle of five minutes on, five minutes off. |
Models 55 and 56 are ideal for both indoor and outdoor use. They require minimum maintenance; their rugged designs seal out corrosive dust and vapors. Both models have sufficient output to penetrate through high ambient noise levels. |
![]() 56 Resonating Horn
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![]() 55 Resonating Horn
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Prices are subject to change without notice. Inventory is subject to prior sale. Product design, specifications & construction are subject to change without notice. Pictures are for general representational purposes and may not represent actual product. Not Responsible for errors in print, verify all data with us or manufacturer. Terms & Conditions of sale apply, for a copy contact us. Products may be discontinued without notice. Pricing Does Not Include Freight Costs. |
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Models 55 and 56 resonating electric horn horns are ideal for both indoor and outdoor use. They require minimum maintenance. Their rugged designs seal out corrosive dust and vapors. Both models have sufficient output to penetrate through high ambient noise levels.
Both models feature corrosion–resistant corrosion resistant cast aluminum housings with a brass projector. These projectors are designed to match the frequency of the vibrating diaphragm to produce a smooth musical tone. The housings are tapped for 1/2–inch conduit (swivel bracket included).