Bosch LP1-UC20E-1-US Specsheet

Communications Systems | LP1‑UC20E‑1 Unidirectional Sound Projector

LP1‑UC20E‑1 Unidirectional Sound
Projector

www.boschsecurity.com

u Superb speech and music reproduction

u Integrated connection cable

The LP1‑UC20E‑1 is a powerful 20 W sound projector
intended for high quality speech and music
reproduction in indoor and outdoor applications. The
state‑of‑the‑art design is matched to both modern and
traditional style environments. The sound projector is
suitable for use in voice alarm systems.

Functions

Superb sound quality

The use of a high‑quality driver has resulted in a very
natural sound reproduction with excellent bass
response.

Voice alarm loudspeaker

Voice alarm loudspeakers are specifically designed for
use in buildings where performance of systems for
verbal communication announcements is governed by
regulations. The LP1‑UC20E‑1 is designed for use in
voice alarm systems, is EN 54‑24 certified and
compliant with BS 5839‑8 and EN 60849. The sound
projector is pre‑wired for use with an optional line/
loudspeaker supervision board external mounted. The
loudspeaker has built‑in protection to secure that, in
the event of a fire; damage to the loudspeaker does

u Ceiling or wall mounting

u Water and dust protected to IP 65

u EN 54‑24 certified

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 loudspeaker has
a ceramic terminal block, thermal fuse and heat
resistant, high-temperature wiring.
The sound projector is made from high‑impact
self‑extinguishing ABS according to class UL 94 V 0,
finished in white.

Certifications and approvals

All Bosch loudspeakers are designed to withstand
operating at their rated power for 100 continuous
hours in accordance with IEC 268‑5 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.

341

Ø185

Ø144

77

41

Ø185

34

Ø144

303

Ø185

11

14

23

109

120°

27

138

40

6

(13.43)

(7.28)

(5.67)

(1.61)

(3.03)

300

(11.81)

(7.28)

(7.28)

(5.67)

(1.34)

(11.93)

(0.43)

(0.90)

(0.55)

(0.24)

(4.29)

(5.43)

(1.06)

(1.57)

20W

10W

5W

0

2.5W

| LP1‑UC20E‑1 Unidirectional Sound Projector

2

Safety aspects

In common with all Bosch products, care is taken to
meet high safety standards.
All ABS parts are self‑extinguishing (according to
UL 94 V 0). This sound projector complies with the
relevant safety and installation regulations of
EN 60065.

Water and dust protection according to IEC 60529, IP 65

Emergency according to EN 54‑24 / BS 5839‑8 /

EN 60849

Region Certification

Europe CE

CE DOP

CPD

Poland CNBOP

Installation/configuration notes

Mounting

Ease of installation is realized in the way of mounting:
first the mounting plate is fixed to the wall or ceiling,
secondly a safety cord is attached to the mounting
plate, allowing the installer temporarily hang the
loudspeaker during installation. After making the
connections, the sound projector can be fixed to the
mounting plate, by means of a fixing screw nut, and
the horizontal direction can be fixed. A cover plate
covers screws and wiring. The versatile mounting
bracket allows the sound projector to be horizontal
and vertical directed. The vertical direction can be
permanent fixed with a recessed socket head screw
via a small hole located in the rear panel. The cover
plate is provided with two cable – or 16 mm (0.63
inch) conduit entries (covered as standard supplied)
in opposite position, suitable for loop‑through cabling.

Power setting

A ceramic terminal for electrical connection is
provided. The loudspeaker is standard connected to
full power. Half‑power, quarter‑power or eighth‑power
can be selected by connecting the appropriate color­coded wire to the terminal block.

Dimensions in mm / (in)

Circuit diagram

Frequency response

Polar diagram (measured with pink noise)

3 | LP1‑UC20E‑1 Unidirectional Sound Projector

Octave band sensitivity*

Octave SPL

1W/1m

125 Hz 84.5 - -

250 Hz 85.5 - -

500 Hz 84.7 - -

1000 Hz 87.2 - -

2000 Hz 90.2 - -

4000 Hz 92.1 - -

8000 Hz 95.9 - -

A-weighted - 89.4 101.0

Lin-weighted - 91.3 102.3

Octave band opening angles

Horizontal Vertical

125 Hz 360 360

250 Hz 360 360

500 Hz 360 360

1000 Hz 220 220

2000 Hz 124 124

4000 Hz 65 65

8000 Hz 34 34

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 dBSPL).

10 W 1000 Ohm

5 W 2000 Ohm

2.5 W 4000 Ohm

Connector 3‑pole screw terminal

* Technical performance data accordance to
IEC 60268‑5

Mechanical

Dimensions (D x L) 185 x 300 mm (7.3 x 11.8 in.)

Weight 3 kg (6.6 lb)

Color White (RAL 9010)

Material ABS

Environmental

Operating temperature -25 ºC to +55 ºC

(-13 ºF to +131 ºF)

Storage and transport
temperature

Relative humidity <95%

-40 ºC to +70 ºC
(-40 ºF to +158 ºF)

Note:

• The specification data is measured in an anechoic
chamber, free field

• The reference axis is perpendicular to the center
point of the front grille

• The reference plane is perpendicular to the center of
the reference axis

• The horizontal plane is perpendicular to the center of
the reference plane

Technical specifications

Electrical*

Maximum power 30 W

Rated power 20 / 10 / 5 / 2.5 W

Sound pressure level
at 20 W / 1 W (1kHz, 1 m)

Sound pressure level
at 20 W / 1 W (1kHz, 4 m)

Opening angle
at 1 kHz / 4 kHz (-6 dB)

Effective frequency range (-10
dB)

Rated voltage
Rated impedance

100 dB / 87 dB (SPL)

91 dB / 78 dB (SPL)

220° / 65°

75 Hz to 20 kHz

100 V

20 W 500 Ohm

CE-label

Ordering information

LP1‑UC20E‑1 Unidirectional Sound Projector

Sound projector 20 W, unidirectional, white ABS
enclosure with metal grille, water and dust protected
IP65, EN54-24 certified, white RAL 9010.

Order number LP1-UC20E-1

4 | LP1‑UC20E‑1 Unidirectional Sound Projector

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
[e-mail]
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: [phone]
Fax: [phone]
[e-mail]
www.boschsecurity.us

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

© Bosch Security Systems 2016 | Data subject to change without notice
1929438731 | en, V8, 21. Dec 2016