Bosch MT-24MCW-FW, MT-24MCW-FR Specsheet
Fire Alarm Systems | MT Multi‑candela Multitone Electronic Appliances
MT Multi‑candela Multitone Electronic
Appliances
www.boschsecurity.com
u Field‑selectable choice of eight nationally and
internationally recognized alerting signals
The Wheelock MT Mult‑candela Electronic Appliances
are audible and visual alarm‑indicating devices
engineered to comply with temporal pattern
specifications without requiring an additional code
mechanism. They have a selection of eight tone
patterns, two sound output levels, and four light
intensities (15 cd, 30 cd, 75 cd, or 110 cd). The
temporal (Code 3) horn and tone patterns meet ANSI/
NFPA/ISO requirements for standard emergency
evacuation signaling.
The extended temperature range satisfies all
severe‑weather outdoor applications. The option to
silence the audible signal allows emergency personnel
to communicate while maintaining the visual alarm
condition, a requirement in some jurisdictions.
Certifications and approvals
Cooper Wheelock, Inc. holds these Listings and
Approvals:
u Two installer‑selectable sound output levels
u Strobe selections of 15 cd, 30 cd, 75 cd, or 110 cd
u ADA, NFPA, and ANSI compliant
u Low average current draw
Region
Certification
USA UL UCST: Audible Signal Appliances, Gener-
al Siganal (UL464), ULSZ: Audible Signal Appliances (UL464), UUKC: Signaling Appliances and Equipment for the
Hearing Impaired (UL1971)
CSFM see our website
Installation/configuration notes
Compatible Products
The following products are compatible with the MT
Multi‑Candela Electronic Appliances:
Category Product ID Product Description
Control Panels D7022
D7024
1
2
Conventional FACP
Addressable FACP
D7024 Conventional FACP
D8024
D9124
D10024A
1
1
1
Analog FACP
Addressable FACP
Analog FACP
2 | MT Multi‑candela Multitone Electronic Appliances
FPA-1000 Analog Addressable FACPs
FPD-7024
FPD-7024 Conventional FACP
Modules SM‑12/24‑R Synchronization module (red)
DSM‑12/24‑R Dual synchronization module
1
For synchronization, use the SM or DSM modules
2
Addressable FACP
(red)
with these control panels. The synchronization module
must be set for 24 V operation. When used, the D7022
must be set for 24 VDC operation.
2
When used with a D7039 Multiplex Expansion
Module, the D7024 and FPD-7024 become
addressable fire alarm control panels (FACPs).
Mounting Considerations
For inside applications, mount these multitone
appliances on the indicated back boxes for the
indicated applications:
Conduit
Applications
Double‑gang • • *
Four‑inch square • • *
DBB • • *
IOB • •
SBB • •
Surface
Mounted
Semi‑Flush or
Flush Mount
* For semi‑flush applications use an ISP2 Surface
Adapter.
All models have an attractive cover plate for a clean,
finished appearance.
Retrofit Applications
Where an oversize electrical box is already installed,
the MT Series appliances can be installed with the
RP‑R Retrofit Plate that measures 8 in. (20.3 cm) high
by 5.875 in. (14.9 cm) wide.
Wiring
Notice
These strobe units are not recommended for use
in coded or pulsed signaling circuits.
The input terminals accept wires with diameters
between 18 AWG and 12 AWG (ISO 0.75 mm2 and
4 mm2).
Parts included
Quant. Component
1 Electronic appliance
1 Hardware pack
1 Literature pack
Technical specifications
Electrical
Current (maximum) strobe only
• VDC 15 cd: 60 mA; 30 cd: 92 mA; 75 cd: 165 mA;
• VFWR 15 cd: 102 mA; 30 cd: 155 mA;
Voltage (input)
• Nominal 24 VDC or FWR
• Range 16.0 V to 33.0 V
110 cd: 220 mA
75 cd: 253 mA; 110 cd: 347 mA
Environmental
Relative Humidity: Up to 95%, non‑condensing
Temperature
(Operating):
-31°F to +150°F (-35°C to +66°C)
Mechanical
Dimensions
(H x W x D):
Material: High‑impact thermoplastic
5.125 in. x 5.125 in. x 4.125 in.
(13 cm x 13 cm x 10.5 cm)
Audible Alarm Patterns and Ratings
Horn (continuous)
Current (maximum)
at 24 V:
Pattern Description: Broadband continuous horn
Sound output* at
10 ft (3 m):
Bell
Current (maximum)
at 24 V:
Pattern Description: 1560 Hz modulated (0.7 sec on, repeat)
Sound output* at
10 ft (3 m):
Horn (march-time)
Current (maximum)
at 24 V:
Pattern Description: Horn (0.25 sec on, 0.25 sec off, repeat)
Sound output* at
10 ft (3 m):
Horn (Code 3)
Current (maximum)
at 24 V:
Pattern Description: Horn (ANSI S3.41 temporal pattern)
Sound output* at
10 ft (3 m):
High output: 108 mA VDC, 87 mA FWR
Standard output: 44 mA VDC, 45 mA FWR
High output: 92 dBA
Standard output: 87 dBA
High output: 53 mA VDC and 51 mA FWR
Standard output: 24 mA VDC, 28 mA FWR
High output: 86 dBA
Standard output: 80 dBA
High output: 104 mA VDC, 87 mA FWR
Standard output: 38 mA VDC, 45 mA FWR
High output: 89 dBA
Standard output: 84 dBA
High output: 91 mA VDC, 87 mA FWR
Standard output: 35 mA VDC, 45 mA FWR
High output: 88 dBA
Standard output: 83 dBA
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