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

3 | MT Multi‑candela Multitone Electronic Appliances

Tone (Code 3)

Current (maximum)
at 24 V:

Pattern Description: 500 Hz (ANSI S3.41 temporal pattern

Sound output* at
10 ft (3 m):

Slow Whoop:

Current (maximum)
at 24 V:

Pattern Description: 500 Hz to 1200 Hz sweep (4 sec on, 0.5 sec

Sound output* at
10 ft (3 m):

Siren

Current (maximum)
at 24 V:

Pattern Description: 600 Hz to 1200 Hz sweep (1.0 sec on,

Sound output* at
10 ft (3 m):

High‑Low

Current (maximum)
at 24 V:

Pattern Description: 1000 Hz and 800 Hz (0.25 sec on, alternate)

Sound output* at
10 ft (3 m):

High output: 75 mA VDC, 60 mA FWR
Standard output: 35 mA VDC, 36 mA FWR

High output: 85 dBA
Standard output: 80 dBA

High output: 98 mA VDC, 92 mA FWR
Standard output: 37 mA VDC, 42 mA FWR

off, repeat)

High output: 90 dBA
Standard output: 85 dBA

High output: 104 mA VDC, 92 mA FWR
Standard output: 36 mA VDC, 40 mA FWR

repeat)

High output: 89 dBA
Standard output: 84 dBA

High output: 57 mA VDC; 58 mA FWR
Standard output: 26 mA VDC, 32 mA FWR

High output: 86 dBA
Standard output: 81 dBA

* Sound output is a minimum UL rating based on
sound power measurements in a reverberant test
room per UL464.

Notice

The sound output for the Temporal Code 3 mode
is rated lower than in Continuous mode because
the time that the horn is off is averaged into the
sound output rating. While the horn is producing a
tone in Temporal Code 3 mode, its sound
pressure is the same as the Continuous mode.

MT‑24MCW‑FW 24 VDC Multi‑candela Multitone Elec­tronic Appliance (white)

White, 24 VDC audible and visual alarm indicating
device has eight tone patterns, two sound output
levels, four light intensities (15, 30, 75, or 110 cd), and
an extended temperature range for severe weather
outdoor applications

Order number MT-24MCW-FW

Accessories

DBB‑R Steel Back Box (red)

8.6 cm (3.375 in.) square, 5.6 cm (2.1875 in.) deep

Order number DBB-R

IOB‑R Indoor or Outdoor Back Box (red)

13.3 cm (5.25 in.) square, 6.7 cm (2.625 in.) deep

Order number IOB-R

ISP2‑R Surface Adapter (red)

13.3 cm (5.25 in.) square, 3 cm (1.1875 in.) deep

Order number ISP2-R

ISP2‑W Surface Adapter (white)

13.3 cm (5.25 in.) square, 3 cm (1.1875 in.) deep

Order number ISP2-W

RP‑R Retrofit Plate (red)

20.3 cm (8 in.) high, 14.9 cm (5.875 in.) wide.
Not Available.

Order number RP-R

SBB‑R Surface‑mount Back Box (red)

14 cm (5.5 in.) x 14.2 cm (5.6 in.) x 9.1 cm (3.6 in.)

Order number SBB-R

SBB‑W Surface‑mount Back Box (white)

14 cm (5.5 in.) x 14.2 cm (5.6 in.) x 9.1 cm (3.6 in.)

Order number SBB-W

SFP‑R Semi‑flush Plate (red)

15.2 cm (6 in.) square by 0.8 cm (0.3125 in.) thick

Order number SFP-R

Ordering information

MT‑24MCW‑FR 24 VDC, Multi‑candela Multitone Elec­tronic Appliance (red)

Red, 24 VDC audible and visual alarm‑indicating device
has eight tone patterns, two sound output levels, four
light intensities (15, 30, 75, or 110 cd), and an
extended temperature range for severe weather
outdoor applications.

Order number MT-24MCW-FR

4 | MT Multi‑candela Multitone Electronic Appliances

Represented by:

Americas: Europe, Middle East, Africa: Asia-Pacific: China: America Latina:

Bosch Security Systems, Inc.
130 Perinton Parkway
Fairport, New York, 14450, USA
Phone: [phone]
Fax: [phone]
[e-mail]
www.boschsecurity.us

Bosch Security Systems B.V.
P.O. Box 80002
5617 BA Eindhoven, The Netherlands
Phone: + 31 40 2577 284
Fax: [phone]
[e-mail]
www.boschsecurity.com

Robert Bosch (SEA) Pte Ltd, Security
Systems
11 Bishan Street 21
Singapore 573943
Phone: [phone]
Fax: [phone]
[e-mail]
www.boschsecurity.asia

Bosch (Shanghai) Security Systems Ltd.
201 Building, No. 333 Fuquan Road
North IBP
Changning District, Shanghai
200335 China
Phone [phone]
Fax: [phone]
www.boschsecurity.com.cn

Robert Bosch Ltda Security Systems Division
Via Anhanguera, Km 98
CEP 13065-900
Campinas, Sao Paulo, Brazil
Phone: [phone]
Fax: [phone]
[e-mail]
www.boschsecurity.com

© Bosch Security Systems 2014 | Data subject to change without notice
2712327435 | en, V4, 25. Sep 2014