Bosch GCC24-CR, GCC24-CW, GCS24-CR, GCS24-CW Specsheet

Fire Alarm Systems | GC Ceiling‑mount, Field‑selectable Strobes and Horn Strobes

GC Ceiling‑mount, Field‑selectable Strobes
and Horn Strobes

www.boschsecurity.com

u Field‑selectable candela options (15 cd, 30 cd,

75 cd, 95 cd, and 115 cd)

The Commander4 Series Ceiling‑mount Strobes and
Horn Strobe combinations offer dependable audible
and visual alarms, low current draw, and a minimum
flash rate of 1 Hz regardless of the input voltage.
These models offer field‑selectable options of 15 cd,
30 cd, 75 cd, 95 cd, 115 cd, and 150 cd.
The horns provide a selection of high or low dBA and a
selection of 2400 Hz (remote signaling) or a low
frequency broad band from 1500 Hz to 3000 Hz
mechanical sounding (evacuation) tone where doors
could be a problem. These models are easily
field‑changeable from Temporal Code 3 to a
continuous tone.
These devices come standard with a 4 in. (10.2 cm)
mounting plate, and incorporate the popular
SuperSlide feature that allows you to easily test for
supervision.

Certifications and approvals

Gentex Corporation holds these Listings and
Approvals:

u Separate horn and strobe functions; silence horn

while strobes remain flashing

u Strobe, horn, or both can be synchronized using the

AVS Series Synchronization Modules

u Silence horn while strobes remain flashing

u Switch selection for high or low dBA, high or low

frequency, and for Temporal Code 3, Chime, or
Whoop tones

Region

USA UL ULSZ: Audible Signal Appliances

Certification

(UL464), ULSZ7: Audible Signal Appli­ances Certified for Canada, and UUKC:
Signaling Appliances and Equipment for
the Hearing Impaired (ANSI/UL 1971)
(GCC24-C models)

UL UUKC: Signaling Appliances and Equip-

ment for the Hearing Impaired (ANSI/UL

1971) and UEES7: Visual-signal Appli­ances Certified for Canada [CAN/ULC­S526 (1987)] (GCS24-C models)

FM

CSFM see our website

Installation/configuration notes

Mounting Considerations

These strobes are equipped with a 4‑in. square
mounting plate that can be mounted on the indicated
back boxes for the indicated applications:

2 | GC Ceiling‑mount, Field‑selectable Strobes and Horn Strobes

Conduit

Applications

4‑in. square • •

GSB • •

Surface
Mounted

Flush
Mounted

Synchronization

Although the AVS44 modules can be used with these
devices, the AVSM modules are recommended in loops
where no HS24 or ST24 devices are used.

Wiring

Notice

Do not use these strobe units 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 Horn Strobe

1 Mounting plate with terminal block

1 Jumper card

2 Hardware packs

1 Literature pack

Technical specifications

Electrical

Current (operating
strobe):

Regulated Voltage (input): 24 VDC or FWR

15 cd = 72 mA; 30 cd = 88 mA;
75 cd = 176 mA; 95 cd = 200 mA;
115 cd = 214 mA, 150 cd = 286 mA

Environmental

Temperature (Operating): +32°F to +120°F (0°C to +49°C)

Mechanical

Candela Selections: 15 cd, 30 cd, 75 cd, 95 cd, 115 cd, or

Dimensions (diameter x D): 6.0 in. x 2.6 in. (15.2 cm x 6.6 cm)

150 cd

Audible Device Current
(maximum):

Sound Output (maximum
range)
at 10 ft (3 m):

*Operating the horn in this mode at this voltage does not meet the
minimum UL reverberant sound level required for public mode fire
protection service. These settings are acceptable only for private mode
fire alarm use. Chime mode is only acceptable for private use.

Continuous 2400 MHz Mode

Audible Device Current
(maximum):

Sound Output (maximum
range)
at 10 ft (3 m):

Continuous Mechanical Mode

Audible Device Current
(maximum):

Sound Output (maximum
range)
at 10 ft (3 m):

Notice

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

23 mA RMS
43 mA FWR

High output: 81 dBA
Low output: 73 dBA*

22mA RMS
45 mA FWR

High output: 86 dBA
Low output: 78 dBA

23 mA RMS
43 mA FWR

High output: 84 dBA
Low output: 76 dBA

Trademarks

All hardware and software product names used in this
document are likely to be registered trademarks and
must be treated accordingly.

Ordering information

GCC24‑CR Red Horn Strobe Unit

Red ceiling-mount horn strobe with field‑selectable
strobe intensities of 15, 30, 75, 95, 115, and 150 cd,
2400 Hz (remote signaling) or low frequency broad
band from 1500 to 3000 Hz mechanical sounding
(evacuation) tone, continuous or temporal (Code 3)
horn tone, and high or low sound volumes.

Order number GCC24-CR

Horn Ratings

Temporal Code 3, 2400 MHz Mode

Audible Device Current
(maximum):

Sound Output (maximum
range)
at 10 ft (3 m):

Temporal Code 3 Mechanical Mode

22 mA RMS
45 mA FWR

High output: 83 dBA
Low output: 75 dBA

GCC24‑CW White Horn Strobe Unit

White ceiling-mount horn strobe with field‑selectable
strobe intensities of 15, 30, 75, 95, 115, and 150 cd,
2400 Hz (remote signaling) or low frequency broad
band from 1500 to 3000 Hz mechanical sounding
(evacuation) tone, continuous or temporal (Code 3)
horn tone, and high or low sound volumes.

Order number GCC24-CW

3 | GC Ceiling‑mount, Field‑selectable Strobes and Horn Strobes

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
2719144843 | en, V3, 14. Nov 2014

GCS24‑CR Red Strobe Unit

Red ceiling-mount strobe with field‑selectable
intensities of 15 cd, 30 cd, 75 cd, 95 cd, 115 cd, and
150 cd.

Order number GCS24-CR

GCS24‑CW White Strobe Unit

White ceiling-mount strobe with field‑selectable
intensities of 15 cd, 30 cd, 75 cd, 95 cd, 115 cd, and
150 cd.

Order number GCS24-CW

Accessories

AVS‑44 Synchronization Control Module (red)

Order number AVS-44

AVS44‑W Synchronization Control Module (white)

Order number AVS44-W

AVSM‑R Synchronization Control Module (red)

Synchronization module for use with all Gentex
synchronizable notification appliances except the
HS24 Series and the ST24 Series.
Not Available.

Order number AVSM-R

AVSM‑W Synchronization Control Module (white)

Synchronization module for use with all Gentex
synchronizable notification appliances except the
HS24 Series and the ST24 Series.
Not Available.

Order number AVSM-W

GSB Surface Back Box (red)

5.6 in. x 4.6 in. x 1.5 in. (14.1 cm x 11.6 cm x 3.7 cm)

Order number GSB