Bosch MTWPB-2475W-NW, MTWPA-2475W-NW, MTWP-2475W-FR, MTWP-2475C-FR Specsheet
Fire Alarm Systems | MTWP Weatherproof Multitone Electronic Appliances
MTWP Weatherproof Multitone Electronic
Appliances
www.boschsecurity.com
u Field‑selectable choice of eight nationally and
internationally recognized alerting signals
The Wheelock MTWP Weatherproof Appliances are
four‑wire appliances listed for indoor or outdoor use.
They provide eight tone patterns, two sound output
levels, and a strobe rated at 75 cd at -31°F (-35°C) and
180 cd at +77°F (+25°C). 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 strobe portion can be synchronized using the SM
(single) or DSM (dual) Synchronization modules or a
compatible control panel. The audible portion cannot
be synchronized, but it can be connected to a coded
fire alarm system.
Notice
These products are not suitable for
hearing‑impaired applications.
Certifications and approvals
Cooper Wheelock, Inc. holds these Listings and
Approvals:
u Two installer‑selectable sound output levels
u Strobe rated at 75 cd at -31°F (-35°C) and 180 cd at
+77°F (+25°C)
u NFPA and ANSI compliant
u UL Listed for indoor or outdoor use
Region
Certification
USA UL ULSZ: Audible-signal Appliances
(ANSI/UL 464) and UVAV: Visual-signal
Appliances for Fire-protective Signaling
Systems (ANSI/UL 1638)
CSFM see our website
Installation/configuration notes
Compatible Products
The following products are compatible with the MTWP
Weatherproof Electronic Appliances:
Category Product ID Product Description
Control
D7022
1
Conventional FACP
Panels
D7024
2
Addressable FACP
D7024 Conventional FACP
D8024
D9124
D10024A
1
1
1
Analog FACP
Addressable FACP
Analog FACP
2 | MTWP Weatherproof Multitone Electronic Appliances
FPD-7024
FPD-7024 Conventional FACP
FPA-1000 Analog Addressable FACPs
Modules SM‑12/24‑R Synchronization module (red)
DSM‑12/24‑R Dual synchronization module (red)
1
For synchronization, use the SM or DSM modules
2
Addressable FACP
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 FPD-7024 and D7024 become
addressable fire alarm control panels (FACPs).
Mounting Considerations
Outdoor or Severe Environment Applications
Notice
Mount the 2475C models only on flat ceilings and
mount the 2475W models only on flat walls.
For an outdoor application or a severe environment
(NEMA 3R) application, mount these multitone
appliances with an IOB Indoor or Outdoor Back Box on
a flat wall or ceiling so the entire rear surface of the
back box is covered. The drain holes in the back box
must point toward the ground. The knockouts on the
rear surface of the back box must remain intact.
The knockout hole on top of the back box is sized for a
half-inch conduit and matching connector. Use a
proper watertight conduit fitting.
Indoor Applications
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.
Indoor Retrofit Applications
Where an oversize electrical box is already installed,
thsee multitone 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 Weatherproof electronic appliance
1 Cover plate
1 Hardware pack
1 Literature pack
Technical specifications
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):
Tone (Code 3)
Current (maximum)
at 24 V:
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
High output: 75 mA VDC, 60 mA FWR
Standard output: 35 mA VDC, 36 mA FWR
Pattern Description: 500 Hz (ANSI S3.41 temporal pattern)
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