MODEL 350
Vibratone® Electro-Mechanical Horn
Installation and Maintenance
Instructions
Limited Warranty: This product’s limited warranty can
be found at www.fedsig.com/SSG-Warranty.
Messages to Installers and Users This product
should be installed to code by a licensed electrician
and follow all safety instructions. Failure to do so may
result in property damage, serious injury, or death.
• Read and understand instructions before
installing or operating the equipment.
• SHOCK HAZARD - To avoid electrical shock
hazards, do not connect wires when power is
applied.
• Optimum sound distribution will be severely
reduced if any objects are in front of the horn.
Ensure that the front of the horn is clear of any
obstructions.
• All effective warning sounders produce loud
sounds that may cause, in certain situations,
permanent hearing loss. Take appropriate
precautions, such as hearing protection. The
device should be installed far enough away from
potential listeners to limit their exposure while
still maintaining its effectiveness. The OSHA
Code of Federal Regulations 1910.95 Noise
Standard provides guidelines that may be used
regarding permissible noise exposure levels.
• After installation, test the system to ensure that it
is operating properly.
Overview: The Model 350 horn is a very loud electro-
mechanical device that produces a horn tone by
vibration of a diaphragm. This horn is capable of
reproducing coded blasts or sustained tone. The horn
has a duty cycle of ve minutes on, ve minutes off.
Unpacking the Device: After unpacking the device,
examine it for damage and verify the parts. See Table
1 for the Carton Contents List. If a part is missing or
appears damaged, do not attempt to install. Contact
Federal Signal Customer Support at +1 708-587-3587
Table 1 Carton Contents List
Qty Description
1 350 Horn
2 8-32 x 1-5/8" oval head screws
2 10-32 x 5/8" oval head tapping screws
1 10-32 x 3/8" hex head tapping screw
1 10-32 x 3/8" hex socket head set screw
Mounting the Device
The horn may be directly mounted to a standard 4-inch
square electrical box or may be mounted using various
FederalSignal accessories (purchased separately).
Outlet Box Mounting
To mount the horn to a wall or other at vertical
surface:
1. Mount a 4-inch square electrical box to the
mounting surface with appropriate user supplied
hardware.
2. Connect the wires per the Electrical Connections
section below.
3. Mount the horn to the box using the two 8-32 by
1-5/8-inch screws provided.
4. Install the two 10-32 by 5/8-inch tapping screws
into the two unused screw openings on the horn.
See Figure 1.
Figure 1 Outlet Box Mounting
290A2450-02
NB
256918 Rev K3 0323