Bosch GEH12WW, GEH12WR Specsheet

Fire Alarm Systems | GEH12 Low‑frequency Horns

GEH12 Low‑frequency Horns

www.boschsecurity.com

u Evacuation tone

u Use the SuperSlide feature for easy testing

u Wide voltage range; 8 VDC to 17.5 VDC

The Gentex GEH12 Low‑frequency Horns offer a
dependable audible alarm and a low current draw.

Functions

Easy Installation and Testing

The user can wire then install the entire system,
reducing installation and operating costs. Use the
SuperSlide feature to test supervision.

Horn Output

The horns provide a selection of high or low volumes
with a peak sound of 100 dBA or greater at 10 ft
(3 m). They offer a choice between a 2400 Hz (remote
signaling) tone or a broadband low frequency
(1500 Hz to 3000 Hz) mechanical sounding
(evacuation) tone where closed doors could be a
problem. The user can also select either continuous or
temporal Code 3 tone output, and synchronize the
temporal signals by using the AVS Series
Synchronization Modules or a compatible control
panel.

Certifications and approvals

Gentex Corporation holds these Listings and
Approvals:

u Select high or low frequency, high or low volume,

and Temporal Code 3 or Continuous tone pattern

u Wire then install the entire system

Region

Certification

USA UL ULSZ: Audible Signal Appliances

(UL464)

CSFM see our website

Installation/configuration notes

Compatible Products

The following products are compatible with the GEH12
Series Horns:

Category Product ID Product Description

Control
Panels

D7022

Compatible with all Bosch G Series, 6000 Series, 2000
Series, DS7400Xi and DS7400XiV4, DS7080iP‑32,
DS7200 Series, and DS7060 Series Control Panels

2

Conventional FACP

1

Modules AVS‑44 Synchronization module (red)

AVS44‑W Synchronization module (white)

AVSM‑R Synchronization module (red)

AVSM‑W Synchronization module (white)

1

For synchronization, use the AVS44 or AVSM

Synchronization Modules with these control panels.

2 | GEH12 Low‑frequency Horns

2

The D7022 must be set for 12 VDC operation and
requires the AVS44 or AVSM Synchronization Modules
for synchronization.

Mounting Considerations

Outdoor Applications
For an outdoor application or a severe environment
(NEMA 3R) application, the GEH12 Series Horns must
be surface mounted on a flat wall in a GOE Outdoor
Enclosure. Use a watertight conduit fitting.
Indoor Applications
Install the horns with their tops at least 90 in. (2.3 m)
above the floor and no closer than 6 in. (15.2 cm) to
the ceiling. The horns are equipped with a four-inch
square mounting plate that can be attached as follows:

Conduit

Applications

Single‑gang • •

Double‑gang • • •

Four‑inch square • • •

GSB • •

Surface
Mounted

Semi‑flush
Mounted

Shipping Information

The horns are delivered from the factory set to the
temporal lower frequency mode. Also included is a
locking mechanism that secures the product to the
bracket without any screws showing.

Wiring

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 with finish plate

1 Die‑cast mounting plate

1 Plastic test card

1 Hardware pack

1 Literature pack

Technical specifications

Electrical

Voltage Range: 8 VDC to 17.5 VDC

Voltage (Input): 12 VDC nominal

Mechanical

Dimensions (HxWxD): 5.0 in. x 4.5 in. x 2.5 in.

(12.7 cm x 11.4 cm x 6.4 cm)

Alarm Ratings

Horn (Continuous, 2400 Hz)

Audible Device Current (maximum): 29 mA RMS

Sound output at 10 ft (3 m) at 12 VDC: High output: 78 dBA

Low output: 73 dBA

Horn (Continuous, Mechanical)

Audible Device Current (maximum): 26 mA RMS

Sound output at 10 ft (3 m) at 12 VDC: High output: 81 dBA

Low output: 75 dBA

Horn (Temporal Code 3, 2400 Hz)

Audible Device Current (maximum): 29 mA RMS

Sound output at 10 ft (3 m) at 12 VDC: High output: 78 dBA

Low output: 73 dBA

Horn (Temporal Code 3, Mechanical)

Audible Device Current (maximum): 26 mA RMS

Sound output at 10 ft (3 m) at 12 VDC: High output: 78 dBA

Low output: 72 dBA*

Chime (Continuous)

Audible Device Current (maximum): 13 mA RMS

Sound output at 10 ft (3 m) at 12 VDC: High output: 64 dBA*

Low output: 63 dBA*

Chime (Temporal Code 3)

Audible Device Current (maximum): 13 mA RMS

Sound output at 10 ft (3 m) at 12 VDC: High output: 63 dBA*

Low output: 62 dBA*

Whoop

Audible Device Current (maximum): 55 mA RMS

Sound output at 10 ft (3 m) at 12 VDC: High output: 79 dBA

Low output: 74 dBA*

* If you operate the horn in this mode at this voltage, it
does not meet the UL reverberant sound level required
for public mode fire protection service. These settings
are acceptable only for private mode fire alarm use.
Use the high output setting for public mode
application.

Environmental

Relative Humidity Up to 93% non‑condensing

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

Notice

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