FH-47 SERIES
LOW PROFILE FIRE
ALARM SPEAKER
Potter Electric Signal Company • 2081 Craig Road, St. Louis, MO, 63146-4161 • Phone: 800-325-3936/Canada 888-882-1833 • www.pottersignal.com
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A Brand
• Listed under UL 1480 fi re protective service
• New low profi le design
• Screw terminal capacity up to AWG #12
• Field selectable taps from ¼ Watt - 2 Watts
• 25V RMS or 70.7V RMS models
• Mounts to 4” square back box
• Frequency range 400 Hz - 4000 Hz
• Integral blocking capacitor for line supervision
• Available with red or white housing
• UL Listed for wall or ceiling mount
Amseco’s low profi le, high quality, fi re alarm speakers are designed to reproduce attention penetrating tones and voice commands for emergency
signaling evacuation systems. These highly effi cient low profi le speakers are available with fi eld selectable taps from ¼ W - 2 Watts. They are
available in two input voltage models 25V RMS and 70.7V RMS and can be installed on a standard 4” x 4” x 1 ½” electrical back box without
the need of an extension ring for a fast and cost effective installation. An in-line capacitor provides the isolation necessary for supervisory use.
The round and square speaker series are available in red or white housing.
The FH-47 Series speakers are designed to meet UL 1480 requirements for audible and voice communications. The low profi le FH-47 speakers
produce a broad frequency range to reproduce emergency signals and voice communication.
Model Number Speaker Voltage
(V RMS) Selectable Power
Taps (Watts) Grille Size
(inches) Grille Type Grille
Color
FH-47R-25S 25 ¼, ½, 1,2 5 ½ Square Red
FH-47W-25S 25 ¼, ½, 1,2 5 ½ Square White
FH-47R-25R 25 ¼, ½, 1,2 7 ¼ Round Red
FH-47W-25R 25 ¼, ½, 1,2 7 ¼ Round White
FH-47R-70S 70.7 ¼, ½, 1,2 5 ½ Square Red
FH-47W-70S 70.7 ¼, ½, 1,2 5 ½ Square White
FH-47R-70R 70.7 ¼, ½, 1,2 7 ¼ Round Red
FH-47W-70R 70.7 ¼, ½, 1,2 7 ¼ Round White
Ordering Information
Engineering Specifi cations
The fi re alarm speaker shall be Amseco FH-47 Series or equivalent and capable of reproducing alarm tones or voice commands on 25V RMS or
70.7V RMS audio systems. Speakers shall provide incremental tap settings of ¼, ½, 1, and 2 Watts, and shall be selected by means of a jumper
wire. The speaker shall have a frequency range of 400 to 4000 Hz and shall have an operating temperature between 14°F and 140°F. It will
produce a UL sound pressure level at 10 feet up to 84dB. The speaker shall be approved for fi re alarm protective signaling use.
Rated Input Voltage (V RMS) 25V 70.7V
Input Power (Watts) 1/4W 1/2W 1W 2W 1/4W 1/2W 1W 2W
Impedance (Ohms) 2.5K 1250 620 310 20K 10K 5K 2.5K
Sound Pressure Level (dB/10 ft) 75 78 81 84 75 78 81 84
Frequency Response (Hz) 400-4000
Low Frequency Cut-off (Hz) 200
Operating Temperature Range 14°F - 140°F (-10°C - 60°C)
Specifi cations
firealarmresources.com
#8-32
Screws
FH-47 Square Grill
4” Square Backbox
2 1/8” Deep
#8-32
Screws
FH-47 Round Grill
4” Square Backbox
2 1/8” Deep
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PRINTED IN USA
A Brand
Dimensions: inches (mm)
FH-47
S
ERIE
S
LOW PROFILE FIRE
ALARM SPEAKER
Wiring Diagram
Mounting
3 3/8 (85.7)
3 3/8 (85.8)
3 3/8 (85.8)
5 17/32 (140)
1 1/4 (32)1 19/32 (15)
3 3/8 (85.8)
3 3/8 (85.8)
7 1/4 (184)
1 1/4 (32)
1 19/32 (15)
SPEAKER
STROBE
TO NEXT DEVICE
OR END-OF-LINE
RESISTOR
TO NEXT DEVICE
OR END-OF-LINE
RESISTOR
SYNC MODULE
SMD10-3A
+ - + -
IN OUT
S + S - + -
CONTROL PANEL
+ - S + S -
Conductor size (AWG), length,
and capacity should be taken into
consideration prior to design and
installation of these products.
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