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Communications Systems | LH2-UC15E Horn loudspeaker, 15W, marine
LH2-UC15E Horn loudspeaker, 15W,
marine
www.boschsecurity.com
u Suitable for marine and industrial applications in
humidity-, chlorine- and salty environments
The Horn Loudspeaker LH2‑UC15E is specifically
designed for excellent sound reproduction in marine
applications and other industrial environments.
The housing is rugged, water- and dust-protected, and
resistant to the corrosive effects of seawater and most
industrial atmospheres.
The horn loudspeaker is made from an UV‑stable, glass
reinforced polyester (GRP). This strong, fire-retardant
and corrosion resistant material is chemical resistant
and thermally stable, making it ideal for even the
harshest environments. The horn is standard supplied
with a stainless steel mounting bracket.
Functions
The horn loudspeaker is standard supplied with a
sturdy mounting bracket allowing the sound beam to
be accurately directed.
The mounting bracket has a ratchet facility to ensure it
stays correctly positioned.
The connection cable is fed out through an ABS cable
gland (PG13.5 standard supplied) in the rear cover,
which can be removed for entering the inside
u Glass reinforced polyester housing with
fire‑retardant properties
u Water– and dust-protected to class IP67
u Provisions for internal mounting of the optional
supervision boards
u Type approval certified EN 60945 and EN54‑24
certified
connection terminal. For loop‑through connection, the
rear cover is fitted with a second hole (covered with a
blanking plug as standard supplied).
The horn loudspeaker includes a transformer for both
70 V and 100 V input voltage, with taps on the primary
winding for different power settings.
Nominal full‑power, half‑power, quarter‑power or
eight‑power radiation (i.e. in 3 dB steps) can easily be
selected by connecting to the appropriate terminal of
the 6‑way screw terminal block.
The horn loudspeaker has built‑in protection to ensure
that, in the event of a fire, damage to the loudspeaker
does not result in failure of the circuit to which it is
connected. In this way, system integrity is maintained;
ensuring loudspeakers in other areas can still be used
to inform people of the situation.
The horn loudspeaker has ceramic screw‑terminal
connection blocks, thermal fuse, heat‑resistant high
temperature wiring and has a provision for internal
mounting of the optional line/loudspeaker supervision
boards.
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302 mm (11.89”)
121 mm (4.76”)
3 mm (0.12”)
212 mm (8.35”)
60 mm (2.36”)
152 mm (5.98”)
111 mm (4.37”)
7 mm (0.28”)
7.5 W
1.87 W
1.87 W 3.75 W
3.75 W
15 W7.5 W
NC
15 W
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NC
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2 | LH2-UC15E Horn loudspeaker, 15W, marine
For enabling loudspeaker supervision, a wire loop from
the secondary side of the horn loudspeaker is available
in the connection area. This wire loop is normally
closed, but when used with the supervision board, it is
cut and connected.
Dimensions in mm (inch)
Circuit diagram
EQ setting
Frequency response
To meet EN54‑24 requirements, below stated 1/3
octave band equalization is required:
1/3 octave band (Hz)
1250 Hz -2 dB
1600 Hz -3 dB
2000 Hz -1 dB
6300 Hz +3 dB
Polar diagrams (measured with pink noise)
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| LH2-UC15E Horn loudspeaker, 15W, marine
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Octave band sensitivity *
Octave SPL
1W/1m
125 Hz 55.2 - -
250 Hz 93.4 - -
500 Hz 99.8 - -
1000 Hz 107.8 - -
2000 Hz 110.8
4000 Hz 107.6 - -
8000 Hz 99.3 - -
A‑weighted - 104.9 115.2
Lin‑weighted - 104.1 114.9
Octave band opening angles
Horizontal Vertical
125 Hz 360 360
250 Hz 360 360
500 Hz 360 360
1000 Hz 119 119
2000 Hz 68 68
4000 Hz 38 38
8000 Hz 23 23
Total octave
SPL
1W/1m
Total octave
SPL
Pmax/1m
Acoustical performance specified per octave
* (all measurements are done with a pink noise signal;
the values are in dB SPL).
Certifications and approvals
Quality assurance
All Bosch loudspeakers are designed to withstand
operating at their rated power for 100 hours in
accordance with IEC 60268-5 Power Handling Capacity
(PHC) standards. Bosch has also developed the
Simulated Acoustical Feedback Exposure (SAFE) test
to demonstrate that they can withstand two times
their rated power for short durations. This ensures
improved reliability under extreme conditions, leading
to higher customer satisfaction, longer operating life,
and lessons the chance of failure or performance
deterioration.
Safety
Emergency According to EN 54‑24 / compliant to
According to EN 60065
BS 5839‑8
Water and dust protection According to EN 60529, IP 67
Salt mist According to IEC 60068‑2‑11
Chlorine resistant According to IEC 60068‑2‑60
Wind force According to Bft 11
Region Regulatory compliance/quality marks
Europe CE DECL EC LH2-UC15E
CE DOC (IP)
Parts included
Quantity Component
1 LH2‑UC15E Horn Loudspeaker
1 Installation instruction
Technical specifications
Electrical*
Maximum power 22.5 W
Rated power (PHC) 15 W
Power tapping 15 / 7.5 / 3.75 / 1.87 W
Sound pressure level
at rated power / 1 W
(1 kHz, 1 m)
Sound pressure level
at rated power / 1 W
(1 kHz, 4 m)
(reference axis 0 degrees,
free field)
Effective frequency range
(- 10 dB)
Opening angle at
1 kHz / 4 kHz
(‑6 dB)
Rated input voltage 70 / 100 V
Rated impedance 334 ohm (15 W at 70 V)
Electrical connection 6‑pole screw terminal
Acceptable wire gauge 1.0 – 2.3 mm
120 / 108 dB (SPL)
102 / 90 dB
300 Hz to 9 kHz
119° / 38°
667 ohm (7,5 W at 70 V / 15 W at
100 V)
1333 ohm (3,75 W at 70 V / 7,5 W at
100 V)
2667 ohm (1,87 W at 70 V / 3,75 W at
100 V)
5347 ohm (1,87 W at 100 V)
* Technical performance data acc. to IEC 60268‑5
Type approval certified According to EN 60945
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0560
Bosch Security Systems BV
Torenallee 49, 5617BA Eindhoven, The Netherlands
0560-CPR-142190008
EN 54-24:2008
Loudspeaker for voice alarm systems
for fire detection and fire alarm systems for buildings
Horn Loudspeaker 15W
LH2-UC15E
Type B
4 | LH2-UC15E Horn loudspeaker, 15W, marine
Represented by:
Europe, Middle East, Africa: Germany: North America: Asia-Pacific:
Bosch Security Systems B.V.
P.O. Box 80002
5600 JB Eindhoven, The Netherlands
Phone: + 31 40 2577 284
emea.securitysystems@bosch.com
emea.boschsecurity.com
Bosch Sicherheitssysteme GmbH
Robert-Bosch-Ring 5
85630 Grasbrunn
Germany
www.boschsecurity.com
Bosch Security Systems, Inc.
130 Perinton Parkway
Fairport, New York, 14450, USA
Phone: +1 800 289 0096
Fax: +1 585 223 9180
onlinehelp@us.bosch.com
www.boschsecurity.us
Robert Bosch (SEA) Pte Ltd, Security Systems
11 Bishan Street 21
Singapore 573943
Phone: +65 6571 2808
Fax: +65 6571 2699
apr.securitysystems@bosch.com
www.boschsecurity.asia
© Bosch Security Systems 2017 | Data subject to change without notice
17958502155 | en, V8, 07. Nov 2017
Mechanical
Dimensions (L x D max) 302 x 212 mm
(11.89 x 8.35 in)
Weight 2.25 kg (4.96 lb)
Color Light grey (RAL 7035)
Material horn Glass Reinforced Polyester (GRP)
Material mounting bracket Stainless steel (grade 316)
Cable diameter 6 mm to 12 mm (0.24 in to 0.47 in)
Environmental
Operating temperature -55 ºC to +70 ºC (-67 ºF to +158 ºF)
Storage and transport
-40 ºC to +70 ºC (-40 ºF to +158 ºF)
temperature
Relative humidity <95%
Ordering information
LH2-UC15E Horn loudspeaker, 15W, marine
Horn Loudspeaker 22.5 W, Glass Reinforced Polyester
(GRP) IP 67 housing, high‑quality speech and music
reproduction, IP67 water and dust protected, salt mist
and chlorine resistant, EN 60945 and EN54‑24
certified, light grey RAL7035.
Order number LH2-UC15E
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