LP1-UC20E-1
Uni-directional sound projector, 20W
20 / 10 / 5 / 2.5 W | ABS, metal grille | 87 dB SPL (1W, 1m) | 75 Hz to 20 kHz | EN54-24
LP1-UC20E-1
Uni-directional sound projector, 20W
20 / 10 / 5 / 2.5 W | ABS, metal grille | 87 dB SPL (1W, 1m) | 75 Hz to 20 kHz | EN54-24
Bosch LP1-UC20E-1 Product Highlights
Explore the key capabilities of the Bosch LP1-UC20E-1 sound projector.
Superb Speech and Music
75 Hz to 20 kHz, 87 dB at 1 W, up to 100 dB.
EN54-24 Voice Alarm
Ceramic terminal, thermal fuse and heat-resistant wiring keep the line up.
IP65 Indoor and Outdoor
Water and dust protected to IP65.
Easy Mounting Plate
Hang it on the safety cord, then fix it to the plate; wall or ceiling.
Wide Coverage
Opening angle 220° / 65° at 1 / 4 kHz.
Supervision Ready
Pre-wired for an optional supervision board.
Key specs
- Taps 20 / 10 / 5 / 2.5 W (100 V)
- 100 / 87 dB SPL at 20 W / 1 W (1 kHz, 1 m)
- 75 Hz to 20 kHz (-10 dB)
- Opening angle 220° / 65° (1 / 4 kHz)
- Ø 185 x 300 mm, 3 kg
- ABS UL 94 V0, metal grilles
- Ceramic terminal, thermal fuse
- Pre-wired for a supervision board
- IP65
- White RAL 9010
- EN54-24, BS 5839-8
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Electrical |
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Rated power |
20 / 10 / 5 / 2.5 W |
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Sound pressure level at 20 W / 1 W (1kHz, 1 m) |
100 dB / 87 dB (SPL) |
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Sound pressure level at 20 W / 1 W (1kHz, 4 m) |
91 dB / 78 dB (SPL) |
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Opening angle at 1 kHz / 4 kHz (-6 dB) |
220° / 65° |
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Effective frequency range (-10 dB) |
75 Hz to 20 kHz |
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Rated voltage |
100V |
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Rated impedance |
20 W: 500 Ohm 10 W: 1000 Ohm 5 W:
2000 Ohm |
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Connector |
3‑pole screw terminal |
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Mechanical |
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Dimensions (D x L) |
185 x 300 mm (7.3 x 11.8 in.) |
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Weight |
3 kg (6.6 lb) |
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Color |
White (RAL 9010) |
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Material |
ABS |
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Environmental |
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Operating temperature |
-25 ºC to +55 ºC (-13 ºF to +131 ºF) |
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Storage and transport temperature |
-40 ºC to +70 ºC (-40 ºF to +158 ºF) |
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Relative humidity |
<95% |
Know before you buy
Quick answers about the LP1-UC20E-1, and how it compares.
Which sound projector or pendant loudspeaker do I need?
| Model | Type | Power taps | SPL 1 W | Frequency range | IP | EN54-24 |
|---|---|---|---|---|---|---|
| LBC3094/15 | Sound projector | 10 / 5 / 2.5 W | 94 dB | 140 Hz to 10 kHz | IP63 | No |
| LP1-UC10E-1 | Sound projector | 10 / 5 / 2.5 W | 86 dB | 75 Hz to 20 kHz | IP65 | Yes |
| LP1-UC20E-1 | Sound projector | 20 / 10 / 5 / 2.5 W | 87 dB | 75 Hz to 20 kHz | IP65 | Yes |
| LBC3095/15 | Pendant sphere | 10 / 5 / 2.5 W | 89 dB | 130 Hz to 20 kHz | IPx3 | No |
| LS1-UC20E-1 | Pendant sphere | 20 / 10 / 5 / 2.5 W | 86 dB | 80 Hz to 20 kHz | IP65 | Yes |
Sound projectors aim the sound where people are, such as walkways and platforms; pendant spheres hang from high ceilings in hypermarkets and halls.
What does EN54-24 mean?
EN 54-24 is the European standard for loudspeakers in voice alarm (evacuation) systems. Certified models show EN54-24 in the banner at the top of their page; the others show Non-EN54 and suit commercial public address and music. For an evacuation system, use EN54-24 loudspeakers throughout.
What do the power taps mean?
Each loudspeaker can be set to one of its power taps, for example 6 / 3 W. Choose a lower tap for small or quiet areas and a higher tap for large or noisy ones. Add up the taps of every loudspeaker on a line: the amplifier must deliver at least that total.
Many 6 W ceiling loudspeakers are tapped down to 3 W, 1.5 W or 0.75 W in the field; in smaller or low-noise areas 3 W is more than enough.
Who supplies Bosch loudspeakers in the UAE, and what warranty do I get?
Protechtors General Trading LLC (hik.ae) is an authorized partner of Bosch, Dynacord and Electro-Voice in the UAE, so everything we supply is genuine and comes with a 3-year warranty. Warranty is carry-in: bring the unit to our office in Dubai and after inspection it is repaired or replaced as needed.
We supply Bosch loudspeakers across the UAE and support you after the sale. Prices are quoted per project: tell us what you need and we will send a quote.