Bosch S8-24MCCH-FW Specsheet
Fire Alarm Systems | S8‑24MCCH‑FW High‑candela Speaker Strobe (white)
S8‑24MCCH‑FW High‑candela Speaker
Strobe (white)
www.boschsecurity.com
u 24 VDC with a wide UL regulated voltage range
using filtered VDC or unfiltered VRMS input
The Wheelock S8‑24MCCH‑FW High‑candela Speaker
Strobe provides high audible output with clear
audibility at either of its field‑selectable voltages
(25 VRMS or 70 VRMS) and at all of its field‑selectable
powers (1/8 W, 1/4 W, 1/2 W, 1 W, 2 W, 4 W, or 8 W).
With its field‑selectable (115 cd or 177 cd)
high‑candela strobe it meets the needs of the life
safety industry for effective emergency voice
communications, tone signaling, and visible signaling
to alert the hearing impaired.
The speakers have a 12‑inch round metal grill and a
molded, flame‑retardant core. The strobes produce
1 flash/sec over the regulated voltage range and can
be synchronized using the SM or DSM Synchronization
Modules.
Certifications and approvals
Cooper Wheelock, Inc. holds these Listings and
Approvals:
u Synchronize using SM or DSM Synchronization
Modules
u Field‑selectable voltages of 25 VRMS or 70 VRMS
and powers from 1/8 W to 8 W
u Field‑selectable strobe intensities of 115 cd or
177 cd
u High efficiency design for maximum output at
minimum wattage across a frequency range of
400 Hz to 4 kHz
Region
USA UL UUKC: Signaling Appliances and Equip-
Certification
ment for the Hearing Impaired
(UL1971), UUMW: Speakers and Amplifiers for Fire Protective Signaling Systems (UL1480, UL1711, and UL2043)
CSFM see our website
Installation/configuration notes
Compatibility Information
These speakers are compatible with Wheelock
SAFEPATH4 Facility Communication Systems and
Bosch Voice Evacuation Systems.
Mounting Considerations
The S8‑24MCCH‑FW Speaker Strobe is designed to
mount flush in a hung tile ceiling. The CBB‑8 Circular
Back Box or its equivalent is required to meet UL1480
requirements. When the speaker and back box cannot
be installed directly through a ceiling tile, a support
bridge (SBB‑8 or equivalent) must be used.
2 | S8‑24MCCH‑FW High‑candela Speaker Strobe (white)
Notice
Do not use these speaker strobes in hazardous
locations as defined by the National Electrical
Code (NEC) and by NFPA. Do not expose these
speaker strobes to rain or moisture. Do not use
these speaker strobes on coded systems in which
the applied voltage is cycled on and off.
Wiring Considerations
The terminal block accepts two 12 AWG (2.3 mm) to
18 AWG (1.2 mm) stranded wires at each screw
terminal.
Parts included
Quant. Component
1 Speaker strobe
1 Hardware pack
1 Literature pack
Technical specifications
Electrical
Voltage
Range : 16.0 VDC or VRMS to 33.0 VDC or VRMS
Regulated: 24 VDC or VRMS
Environmental
Relative Humidity: Up to 85%, non‑condensing
Temperature (operating): +32°F to +120°F (0°C to +49°C)
Mechanical
Color: white, powder coat
Weight: 3.75 lb (1.7 kg)
1/4 W: 78 dBA
1/2 W: 81 dBA
1 W: 84 dBA
2 W: 87 dBA
4 W: 90 dBA
8 W: 93 dBA
Strobe Characteristics
Candela Ratings: 115 cd or 177 cd
Average RMS Current
At 24 VDC: 115 cd: 195 mA; 177 cd: 270 mA
At UL max: 115 cd: 300 mA; 177 cd: 420 mA
1
RMS current ratings are per UL average RMS method.
1
UL max current is the maximum RMS current within
the listed voltage range.
Trademarks
All hardware and software product names used in this
document are likely to be registered trademarks and
must be treated accordingly.
Ordering information
S8‑24MCCH‑FW High‑candela Speaker Strobe (white)
Compatible with Wheelock SAFEPATH4 Facility
Communication Systems and Bosch Voice Evacuation
Systems
Order number S8-24MCCH-FW
Accessories
CBB‑8 Circular Back Box
Overall (flange) diameter of 31.3 cm (12.3125 in.),
interior diameter of 24.8 cm (9.75 in.), depth of
10.3 cm (4.1 in.)
Order number CBB-8
Diameter
Grill: 12 in. (30.5 cm)
Speaker: 8 in. (20.3)
Material
Grill: powder‑coated metal
Speaker Cone: molded, flame‑retardant plastic
Strobe: Xenon flashtube with solid-state circuitry
enclosed in a Lexan lens
Speaker Characteristics
Frequency Response: 200 Hz to 15 kHz (400 Hz to 4 kHz UL)
Impedance: 8 Ω
Decibel Rating at 10 ft (3 m):
1/8 W: 75 dBA
SSB‑8 Ceiling Support Bridge
23.75 in. (60.3 cm) long by 14.5 in. (36.8 cm) wide
Order number SSB-8
DSM‑12/24‑R Dual Synchronization Module (red)
A 12/24 VDC Cooper Wheelock module that
synchronizes notification appliances on a single Class
A or two Class B circuits.
Order number DSM‑12/24‑R
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