Fire Alarm Systems | NS Series 24 VDC Fixed-candela Horn Strobes
NS Series 24 VDC Fixed-candela Horn
Strobes
▶ Two selectable nationally and internationally
recognized alerting signals
▶ Two selectable sound output levels
▶ Strobe listed at 15 cd, but providing 75 cd on axis
▶ 24 VDC, filtered or unfiltered
▶ Low average current draw
▶ NFPA and ANSI compliant
The Wheelock NS Series 24 VDC Fixed-candela Horn
Strobes have a choice of two tone patterns (continuous
or temporal [Code 3] horn tones) and two sound output
levels (high or low). The temporal (Code-3) horn pattern
meets ANSI/NFPA/ISO requirements for standard
emergency evacuation signaling. They also have a strobe
light rated at 15 cd that provides 75 cd of light intensity
on axis.
These two-wire horn strobes feature low current draw
at 24 VDC, filtered (FWR) or unfiltered. All inputs are
polarized for compatibility with standard reverse
polarity supervision of the circuit wiring by the control
panel. The temporal patterns and strobes can be
synchronized with an SM (single) or a DSM (dual)
synchronization module or a compatible control panel.
They have a universal mounting plate for easy wall
mounting on a variety of back boxes.
Certifications and Approvals
Wheelock, Inc. holds these Listings and Approvals:
Listings and
Approvals:
UL UCST and ULSZ: Audible Signal Appliances (UL464)
UL UUKC: Signaling Appliances and Equipment for the
Hearing Impaired (UL1971)
ULC-S525-99: Canadian UL Standard for Audible Signaling
Appliances for Fire Alarm Systems
ULC-S526-02: Canadian UL Standard for Visible Signaling
Appliances for Fire Alarm Systems
CSFM 7135-0785: 142
City of Chicago Bureau of Fire Protection
Factory Mutual Research
NYC/MEA (151‑93‑E, Vol. 20)
Complies with:
Americans with Disabilities Act (ADA)
American National Standards Institute (ANSI 117.1)
International Standards Organization (ISO)
National Fire Protection Association (NFPA 72)
Occupational Safety and Health Administration
(OSHA 29 Part 1910.165)
Installation/Configuration Notes
Compatible Products
The following products are compatible with the NS
Series Horn Strobes:
Category
Product ID
Product Description
Control
D7022
Conventional FACP
Panels
D70242
Addressable FACP
D7024
Conventional FACP
D80243
Analog FACP
D9124
Addressable FACP
D10024A3
Analog FACP
1
3
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2 | NS Series 24 VDC Fixed-candela Horn Strobes
Modules
SM-12/24-R
Synchronization module (red)
DSM-12/24-R
Dual synchronization module (red)
The D7022 must be used in 24 VDC mode.
2
When used with a D7039 Multiplex Expansion Module,
the D7024 becomes an addressable fire alarm control
panel (FACP).
3
For synchronization, use the SM or DSM modules with
these control panels and set the synchronization module
for 24 VDC operation.
1
Mounting Considerations
Wall mount these horn strobes on the indicated back
boxes for the indicated applications:
Conduit
Applications
Surface
Mounted
Single‑gang
Semi-Flush or
Flush Mount
•
Broadband continuous horn
Sound output* at 10 ft
(3 m):
High output: 87 dBA
Low output: 81 dBA
Horn (Code 3)
Pattern Description:
Horn (ANSI S3.41 temporal pattern)
Sound output* at 10 ft
(3 m):
High output: 82 dBA
Low output: 76 dBA
* Sound output is a minimum UL rating based on sound
power measurements in a reverberant test room per
UL464.
Environmental Considerations
•
+32°F to +120°F (0°C to +49°C)
•
•
Mechanical Properties
•
Four-inch square
•
•
BB
•
•
•
DBB
•
•
•
SBB
•
•
•
All models have an attractive cover plate for a clean,
finished appearance.
Wiring
Do not use these horn strobe units in coded
or pulsed signaling circuits.
The input terminals accept wires with diameters
between 18 AWG (1.2 mm) and 12 AWG (2.3 mm).
Parts Included
Pattern Description:
Up to 95%, non-condensing
•
Note
Horn (continuous)
Temperature (Operating):
•
SHBB
Alarm Patterns and Ratings
Relative Humidity:
Double‑gang
100 mm European
Technical Specifications
Candela Rating:
15 cd1
Dimensions (H x W x D):
4.75 in. x 4.75 in. x 2.375 in.
(12.1 cm x 12.1 cm x 6.0 cm)
Material:
Molded plastic enclosure incorporating a Xenon
flashtube and Lexan® lens
Although this product is UL Listed at 15 cd, it provides
75 cd on axis.
1
Power Requirements
Current (maximum)
VDC::
High output: 104 mA; Low output: 96 mA
VFWR:
High output: 174 mA; Low output: 160 mA
Voltage (input)
Nominal:
24 VDC or FWR
Range:
16.0 V to 33.0 V
Quant.
Component
Trademarks
1
Horn strobe
1
Universal mounting plate
Lexan® is a registered trademark of General Electric Corporation, USA, in the
United States and other countries.
1
Hardware pack
1
Literature pack
Ordering Information
NS-241575W-FR 24 VDC Horn-Strobe (red)
NS-241575W-FR
NS-241575W-FW 24 VDC Horn-Strobe (white)
NS-241575W-FW
Hardware Accessories
BB-R Steel Back Box
BB-R
DBB-R Steel Back Box (red)
DBB-R
NATP-R Trim Plate (red)
NATP-R
NATP-W Trim Plate (white)
NATP-W
RP-R Retrofit Plate (red)
RP-R
SBB-R Surface-mount Back Box (red)
SBB-R
NS Series 24 VDC Fixed-candela Horn Strobes | 3
Ordering Information
SBB-W Surface-mount Back Box (white)
SBB-W
SFP-R Semi-flush Plate (red)
SFP-R
SHBB-R Shallow Surface Back Box (red)
SHBB-R
Americas:
Bosch Security Systems
130 Perinton Parkway
Fairport, New York, 14450, USA
Phone: +1 585 223 4060
Fax: +1 800 289 0096
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 27 83955
Fax: +31 40 27 86668
emea.securitysystems@bosch.com
www.boschsecurity.com
© Bosch Security Systems 2006 | Data subject to change without notice
F1572676235 | Cur: en-US, V2, 9 Feb 2006
Asia-Pacific:
Bosch Security Systems Pte Ltd
38C Jalan Pemimpin
Singapore 577180
Phone: +65 6319 3450
Fax: +65 6319 3499
apr.securitysystems@bosch.com
www.boschsecurity.com
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