Audible Devices
31X Explosion-Proof Vibrating Horn
- Corrosion-resistant cast aluminum housings
- Produces 100dBa @ 10' (110dBa @ 1m)
- UL and cUL Listed, CSA Certified

These Federal Signal explosion-proof vibrating horns are constructed for safe use in hazardous environments. They are enclosed in a heavy-duty copper-free cast aluminum housing tapped for 3/4-inch conduit.
Federal Signal Models 31X and 41X are corrosion-resistant vibrating horns with stainless steel diaphragms. Model 41X is available in 24VDC. The Model 31X is available in 120VAC and 240VAC and features an internal volume control.
The 31X and 41X models are UL and cUL Listed for Class I, Division 1, Groups C and D; Class II, Division 1, Groups E, F, and G; and Class III. Both are CSA (Canadian Standards Association) Certified. A five minute duty cycle applies to both models.
Models
Part # | Description | Ship Weight | Net Weight | |
---|---|---|---|---|
31X-120-3 | Horn, 120VAC, explosion-proof | 8.1 lbs. | 7.5 lbs. | Add to Quote > |
31X-240 | Horn, 240VAC, explosion-proof | 8.1 lbs. | 7.5 lbs. | Add to Quote > |
Accessories
Part # | Description | Ship Weight | |
---|---|---|---|
NOT APPLICABLE |
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 |
Specs
Voltage | 120VAC 50/60Hz 240VAC 50/60Hz |
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Mount | 3/4" Pipe |
Operating Current | 0.20 Amps at 120VAC 0.10 Amps at 240VAC |
Operating Temperature Min. | -31 F |
Operating Temperature Max. | 150 F |
Decibel Output | 100 at 10 Feet 110 at 1 Meter |
Duty Cycle | Rated for continuous duty |
Height | 7.625 IN |
Width | 6.5 IN |
Depth | 6.5 IN |