Bosch S8-24MCC-FW Specsheet
Fire Alarm Systems | S8‑24MCC‑FW Multi‑candela Speaker Strobe (white)
S8‑24MCC‑FW Multi‑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 S8‑24MCC‑FW Multi‑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 multi‑candela (15 cd, 30 cd, 75 cd, or 95 cd)
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 15 cd, 30 cd,
75 cd, or 95 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 speaker strobes are compatible with Wheelock
SAFEPATH4 Facility Communication Systems and
Bosch Voice Evacuation Systems.
Mounting Considerations
The 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 | S8‑24MCC‑FW Multi‑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)
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
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: 15 cd, 30 cd, 75 cd, or 95 cd
Average RMS Current
At 24 VDC: 15 cd: 45 mA; 30 cd: 70 mA; 75 cd: 119 mA;
At UL max: 15 cd: 65 mA; 30 cd: 105 mA; 75 cd: 189 mA;
1
RMS current ratings are per UL average RMS method.
1
95 cd: 159 mA
95 cd: 249 mA
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
S8‑24MCC‑FW Multi‑candela Speaker Strobe (white)
Compatible with Wheelock SAFEPATH4 Facility
Communication Systems and Bosch Voice Evacuation
Systems
Order number S8-24MCC-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
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
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
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