The Federal Signal Model A is a general-purpose electro-mechanical
siren that produces a distinctive sound and tonal quality for
industrial applications. It has a high maximum pitch which
provides excellent contrast to industrial ambient noise. Introduced
in 1918, the Model A is still used today in many rugged and
extreme environments and applications.
The Model A features a universal motor and operates with
120VAC or 125VDC. The fractional horsepower motor drives a
ported aluminum rotor within the specially designed stator to
produce a unique sound. A small internal fan cools the motor
during operation. The recommended duty cycle is five minutes
on/five minutes off. This siren produces an attention-getting
103dBa @ 10' (113dBa @ 1m) and 1060Hz at full R.P.M.
The Model A's metal housing is sealed with red powder coat
for an attractive appearance and superior corrosion resistance.
The swivel mount bracket accommodates wall and surface
The Model A is UL and cUL Listed and FM Approved.
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