Model 350 Vibratone® Horn produces a loud tone by the electro-mechanical vibration of a diaphragm. Its compact size, loud output and heavy-duty construction makes the 350 ideal for industrial and institutional signaling applications. It’s popularly used for general alarming, start and dismissal noticing, coded paging and process control in noisy areas.  

The 350 is enclosed in a zinc die-cast housing and sealed with grey powder-coat paint with a stainless steel diaphragm.


Voltage 12VAC 50/60Hz
24VAC 50/60Hz
120VAC 50/60Hz
240VAC 50/60Hz
Mount Panel
4" Square Electrical Box
Operating Current 0.90 Amps at 12VAC
0.90 Amps at 24VAC
0.18 Amps at 120VAC
0.09 Amps at 240VAC
Decibel Output 94 Using 12VAC at 10 Feet
100 Using 24, 120 and 240VAC at 10 Feet
104 Using 12VAC at 1 Meter
110 Using 24, 120 and 240VAC at 1 Meter
Operating Temperature -65°F to 150°F (-54°C to 66°C)150 °F
Duty Cycle Not rated for continuous duty.
Enclosure Rating Type 4X when installed with Panel Mount Gasket Kit or Weatherproof Backbox
Enclosure Rating Type 4X and Type 12 when installed with Surface Mount Trim Ring
Net Weight 1.40 lb
Shipping Weight 1.50 lb

Ordering Information

Model Types
Model Description UPC
350-012-30 Horn, 12VAC 78297920510
350-024-30 Horn, 24VAC 78297920520
350-120-30 Horn, 120VAC 78297920530
350-240-30 Horn, 240VAC 78297920540
Product # Description UPC
FB Box, wall mount 78297922320
FBL Deep wall box for flush mount 78297922350
FG Grille, flush mount 78297922360
PR2-NM Projector, double, gray 782979233398
SF Plate, semi-flush, gray 78297922460
TR Mounting trim ring for 350 and 450 horns 78297921393
WB Box, weatherproof, gray 78297922470
Replacement Parts
Description Part Number UPC
Panel mount gasket kit K8435666A 782979232575
350/450 hardware kit K8435663B 782979232568
120VAC coil KFC1516C 782979225508
Coil, 240V, 350 KFC1506C 782979225492