Audible Devices
55X Explosion-Proof Resonating Horn
- Corrosion-resistant cast aluminum housing
- Produces 105dBa @ 10' (115dBa @ 1m)
- Type 4X, IP66 enclosure
- UL and cUL Listed, CSA Certified

This Federal Signal explosion-proof resonating horn is constructed for safe use in hazardous environments. It is enclosed in a heavy-duty die cast aluminum housing which is tapped for 3/4-inch conduit.
Federal Signal Model 55X is a resonating electric horn which produces sound by means of a diaphragm which resonates a column of air. The Model 55X is available in 120VAC.
The 55X is UL Listed for Class I, Division 1, Groups C & D; Class I, Division 2, Groups C & D; Class II, Division 1, Groups E, F & G; and Class III. A five minute duty cycle applies.
This resonating explosion-proof horn is designed for locations where the danger of explosion or fire exists, such as refineries, laboratories, mines and grain elevators.
Models
Part # | Description | Ship Weight | Net Weight | |
---|---|---|---|---|
55X-120-1 | Horn, 120VAC, explosion-proof, resonating | 12.5 lbs. | 10.5 lbs. | Add to Quote > |
Accessories
Part # | Description | Ship Weight | |
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NOT APPLICABLE |
Replacement Parts
Description | Part # | |
---|---|---|
Straight Projector | K8283C071-0G | Add to Quote > |
Mounting Bracket Accessory Kit | K8233A046-0G | Add to Quote > |
Agency
Listed By Underwriter's Laboratory (ULus) | |
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Audible signal devices for use in hazardous locations | UGKZ_E12629.pdf |
Listed By Underwriter's Laboratory For Use In Canada (cUL) | |
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Audible signal devices for use in hazardous locations certified for Canada | UGKZ7_E12629.pdf |
Certified by CSA International | |
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Signal appliances, audible, for hazardous locations | 4818_02.pdf |