LC3-UC06E
EN54-24 ceiling loudspeaker, 6W
6 / 3 / 1.5 / 0.75 W | ABS frame and grille | 86 dB SPL (1W, 1m) | 90 Hz to 20 kHz | EN54-24 with LC3-CBB
LC3-UC06E
EN54-24 ceiling loudspeaker, 6W
6 / 3 / 1.5 / 0.75 W | ABS frame and grille | 86 dB SPL (1W, 1m) | 90 Hz to 20 kHz | EN54-24 with LC3-CBB
Bosch LC3-UC06E Product Highlights
Explore the key capabilities of the Bosch LC3-UC06E ceiling loudspeaker.
EN54-24 with Back Box
Certified EN54-24 and BS 5839-8 when installed with the LC3-CBB back box.
Line Stays Up in a Fire
Ceramic terminal, thermal fuse and heat-resistant wiring protect the loudspeaker line.
Speech and Music
86 dB SPL at 1 W, 1 m; 90 Hz to 20 kHz for speech and music reproduction.
Wide Coverage
Opening angle 180° / 85° at 1 kHz / 4 kHz.
Four Power Taps
6, 3, 1.5 and 0.75 W on 100 V, in 3 dB steps.
Spring Arms
Light ABS with integral spring arms, 167 mm cut-out, template included.
Key specs
- Taps 6 / 3 / 1.5 / 0.75 W (100 V), max 9 W
- 94 / 86 dB SPL at 6 W / 1 W (1 kHz, 1 m)
- 90 Hz to 20 kHz
- Opening angle 180° / 85°
- 167 mm cut-out, ceilings 5 to 25 mm
- Ø 180 mm, depth 63 mm, 538 g
- ABS frame and grille, UL 94 V0
- 3-pole ceramic screw terminal, thermal fuse
- RAL 9010 white
- EN54-24 and BS 5839-8 with LC3-CBB
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Electrical |
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Rated power |
6 W (6/3/1.5/0.75 W) |
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Sound pressure level at 6 W / 1 W (1 kHz, 1 m) |
94 dB / 86 dB (SPL) |
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Sound pressure level at 6 W / 1 W (1 kHz, 4 m) |
85 dB / 78 dB (SPL) |
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Effective frequency range (-10 dB) |
90 Hz to 20 kHz |
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Opening angle at 1 kHz/4 kHz (-6 dB) |
180° / 85° |
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Rated voltage |
100 V |
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Rated impedance |
1667 ohm at 6 W |
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Electrical Connection |
3‑pole ceramic screw terminal block |
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Acceptable wire gauge |
0.5 - 3 mm2 |
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Mechanical |
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Diameter |
180 mm (7.08 in) |
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Mounting cut-out |
167 mm (6.57 in) |
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Max. ceiling thickness |
5 to 25 mm (0.19 to 0.98 in) |
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Maximum depth |
63 mm (2.32 in) |
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Material (frame, front grille) |
ABS |
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Weight |
538 g (1.19 lb) |
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Color |
White (RAL 9010) |
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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 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 LC3-UC06E, and how it compares.
Do I need the LC3-CBB back box?
For voice alarm, yes: the LC3-UC06E is EN54-24 compliant only with the LC3-CBB back box. It also protects against dust and dripping water (IP21C), keeps vermin out and stops sound travelling through the ceiling.
LC3-UC06E or the new LCE-06CWE / MWE?
How do the 6 W ceiling loudspeakers compare?
| Model | Build | SPL 1 W, 1 m (1 kHz) | Frequency range | Cut-out | EN54-24 |
|---|---|---|---|---|---|
| LC3-UC06 | ABS | 86 dB | 90 Hz to 20 kHz | 167 mm | No |
| LC3-UC06E | ABS | 86 dB | 90 Hz to 20 kHz | 167 mm | With LC3-CBB |
| LC9-UC06 | Metal grille, plastic surround | 92 dB | 80 Hz to 20 kHz | - | No |
| LHM0606/10 | Metal grille | 86 dB | 80 Hz to 18 kHz | 165 mm | No |
| LBC3090/01 | ABS grille, metal frame | 91 dB | 70 Hz to 18 kHz | 182 mm | No |
| LBC3090/31 | Metal grille | 91 dB | 70 Hz to 18 kHz | 172 mm | No |
| LBC3951/11 | Metal grille, 4-inch, IPx4 | 88 dB | 60 Hz to 18 kHz | 145 mm | No |
| LBC3086/41 | Metal grille | 90 dB | 90 Hz to 20 kHz | 196 mm | With LBC3081/02 |
| LC3-UM06E | Metal grille, fire dome | 92 dB | 290 Hz to 18 kHz | 170 mm | Yes |
| LC1-UM06E8 | Steel, modular | 89 dB | 70 Hz to 20 kHz | 190 / 200 mm | In LC1 housing |
The new series is on Entry and Mid Level pages, all with a 180 mm cut-out.
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 Pakistan, and what warranty do I get?
Electronic Security Company (ESCO) is the only authorized distributor of Bosch, Dynacord and Electro-Voice in Pakistan, so every Bosch loudspeaker is genuine and comes with a 3-year warranty. Warranty is carry-in: bring the unit to an ESCO office and after inspection it is repaired or replaced as needed.
We supply, design and install public address and voice alarm systems, with offices and stock in Karachi, Lahore, Islamabad and Rawalpindi and dealers across Pakistan.