HS24 Series Low‑Current Horn Strobes
Fire Alarm Systems | HS24 Series Low‑Current Horn Strobes
HS24 Series Low‑Current Horn Strobes
▶ Separate horn and strobe capabilities for field
modifying the signal to meet specific applications
▶ Sleek, low profile with a tamper‑proof re-entrant grill
▶ Low installation and operating costs
▶ Synchronize strobes and horns using an AVS44
Synchronization Control Module
▶ Silence horn while strobes remain energized using only
two power wires
▶ Available in red or off‑white
The Gentex Commander Series (HS24) is a horn and strobe
combination that offers dependable audible and visual
alarms at low current. These models are easily
field‑changeable from temporal (Code 3) to a continuous
tone by simply removing a jumper plug. They are shipped
from the factory in the temporal alarm mode. The
Commander Series comes standard with the 4 in. (10.2 cm)
mounting plate. The Commander Series has a minimal
operating current and has a minimum flash rate of 1 Hz
regardless of input voltage. Commander Series appliances
are UL Listed for use with fire protective systems.
Functions
Horn
The horn produces a peak sound output of 90 dBA or
greater as measured in an anechoic chamber. The user can
select either continuous or temporal tone output. The
temporal signal can be synchronized. The audible signal can
be silenced while leaving the visible signal energized with
the use of a single pair of power wires.
Strobe
The strobe maintains a minimum flash rate of 1Hz or greater
regardless of power input voltage. The appliance meets the
candela requirements (75 cd) of the Americans with
Disabilities Act (ADA) for the 75 cd and 110 cd models. The
appliance has an operating current of 57 mA or less at
24 VDC for the 15/75 cd model.
Power Supervision
The horn strobes are polarized to allow for electrical
supervision of the system wiring. Each unit is provided with
terminals with barriers for input and output wiring and can
mount on a single‑gang box, double‑gang box, or double
work box with the use of an adapter plate. Each unit has an
input voltage range of 20 V to 31 V with either direct current
or full wave rectified power.
Certifications and Approvals
Note
Gentex Corporation holds the Listings and
Approvals.
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2 | HS24 Series Low‑Current Horn Strobes
Region
Certification
USA
UL
Mechanical Properties
ULSZ: Audible Signal Appliances (UL464),
ULSZ7: Audible Signal Appliances
Certified for Canada (cULus)
Dimensions (H x W x D):
7135-0569: 122
Voltage Range:
16 to 33 VDC or FWR
Voltage (Input):
24 VDC or VFWR nominal
FM
CSFM
CBFP
City of Chicago Bureau of Fire Protection
NYC/MEA
285‑91‑E
ADA
Complies with Americans with Disabilities
Act ADA 4.28.3
NFPA
Complies with National Fire Protection Association NFPA 72
Installation/Configuration Notes
5.6 in. x 4.5 in. x 3.4 in.
(14.2 cm x 11.4 cm x 8.6 cm)
Power Requirements
Strobe Current Ratings (maximum)
15 cd:
61 mA RMS, 80 mA FWR
15/75 cd:
92 mA RMS, 119 mA FWR
30 cd:
92 mA RMS, 119 mA FWR
60 cd:
134 mA VDC, 172 mA FWR
75 cd:
156 mA VDC, 204 mA FWR
110 cd:
195 mA VDC, 252 mA FWR
Mounting Considerations
The horn strobes are intended for indoor installations only;
they are not weatherproof for outdoor or drip‑proof
applications. Mount on interior walls so that the entire lens
is at least 80 in. (2 m) but not greater than 96 in. (2.4 m)
above the finished floor.
The supplied mounting plate fits standard 4‑inch back
boxes and double‑gang boxes.
Wiring Considerations
Use 18 AWG (1 mm) minimum wire.
Note
Do not use these strobe units in coded or
pulsed signaling circuits.
Parts Included
Quant.
Component
1
Horn strobe
1
Mounting plate
1
Hardware pack
1
Literature pack
Technical Specifications
Environmental Considerations
Relative Humidity:
Up to 93%, non‑condensing
Temperature (operating):
+32°F to +120°F (0°C to +49°C)
Horn Ratings
Horne Current (maximum):
34 mA RMS; 49 mA FWR
Sound Output (maximum range)
at 10 ft (3 m):
85 dBA
Ordering Information
HS24‑15WR 15 cd Horn Strobe (red)
Red, 24 VDC device with 15 cd strobe and
field‑selectable temporal (Code 3) or continuous tone pattern
HS24-15WR
HS24‑15WW 15 cd Horn Strobe (white)
White, 24 VDC device with 15 cd strobe and
field‑selectable temporal (Code 3) or continuous tone pattern
HS24-15WW
HS24‑15/75WR 15/75 cd Horn Strobe (red)
Red, 24 VDC device with 15/75 cd strobe and
field‑selectable temporal (Code 3) or continuous tone pattern
HS24-15/75WR
HS24‑15/75WW 15/75 cd Horn Strobe
(white)
White, 24 VDC device with 15/75 cd strobe
and field‑selectable temporal (Code 3) or continuous tone pattern
HS24-15/75WW
HS24‑30WR 30 cd Horn Strobe (red)
Red, 24 VDC device with 30 cd strobe and
field‑selectable temporal (Code 3) or continuous tone pattern
HS24-30WR
HS24‑30WW 30 cd Horn Strobe (white)
White, 24 VDC device with 30 cd strobe and
field‑selectable temporal (Code 3) or continuous tone pattern
HS24-30WW
HS24‑60WR 60 cd Horn Strobe (red)
Red, 24 VDC device with 60 cd strobe and
field‑selectable temporal (Code 3) or continuous tone pattern
HS24-60WR
HS24‑60WW 60 cd Horn Strobe (white)
White, 24 VDC device with 60 cd strobe and
field‑selectable temporal (Code 3) or continuous tone pattern
HS24-60WW
HS24‑75WR 75‑cd Horn Strobe (red)
Red, 24 VDC device with 75 cd strobe and
field‑selectable temporal (Code 3) or continuous tone pattern
HS24-75WR
HS24 Series Low‑Current Horn Strobes | 3
Ordering Information
HS24‑75WW 75 cd Horn Strobe (white)
White, 24 VDC device with 75 cd strobe and
field‑selectable temporal (Code 3) or continuous tone pattern
HS24-75WW
HS24‑110WR 110 cd Horn Strobe (red)
Red, 24 VDC device with 110 cd strobe and
field‑selectable temporal (Code 3) or continuous tone pattern
HS24-110WR
HS24‑110WW 110 cd Horn Strobe (white)
White, 24 VDC device with 110 cd strobe and
field‑selectable temporal (Code 3) or continuous tone pattern
HS24-110WW
Accessories
AVS‑44 Synchronization Control Module
(red)
Synchronization Control Module primarily for
use with the Gentex HS24 Series and ST24
Series notification appliances.
AVS-44
AVS44‑W Synchronization Control Module
(white)
Synchronization Control Module primarily for
use with the Gentex HS24 Series and ST24
Series notification appliances.
AVS44-W
www.boschsecurity.com
4 | HS24 Series Low‑Current Horn Strobes
Americas:
Bosch Security Systems, Inc.
130 Perinton Parkway
Fairport, New York, 14450, USA
Phone: +1 800 289 0096
Fax: +1 585 223 9180
security.sales@us.bosch.com
www.boschsecurity.us
Europe, Middle East, Africa:
Bosch Security Systems B.V.
P.O. Box 80002
5600 JB Eindhoven, The Netherlands
Phone: + 31 40 2577 284
Fax: +31 40 2577 330
emea.securitysystems@bosch.com
www.boschsecurity.com
© Bosch Security Systems Inc. 2010 | Data subject to change without notice
T2958723211 | Cur: en-US, V4, 4 Jul 2010
Asia-Pacific:
Represented by
Robert Bosch (SEA) Pte Ltd, Security Systems
11 Bishan Street 21
Singapore 573943
Phone: +65 6258 5511
Fax: +65 6571 2698
apr.securitysystems@bosch.com
www.boschsecurity.com
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