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Bosch Security and Safety Systems | North America

Ceiling loudspeaker, 6 W, 4"

Commercial Product No.: LBC3951/12 | Product No.: F.01U.348.979
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Expected delivery:28/11/2017

Key Specifications

Rated power 6 / 3 / 1.5 / 0.75 W
Sound pressure levelat 6 W / 1 W (1 kHz, 1 m) 95 dB / 87 dB (SPL)
Sound pressure levelat 6 W / 1 W (4 kHz, 1 m) 98 dB / 90 dB (SPL)
Effective frequency range (-10 dB) 90 Hz to 18 kHz
Opening angle at 1 kHz/4 kHz (-6 dB) 180° / 65°
Rated voltage 100 V
Rated impedance 1667 ohm
Connector 2-pole push-in terminal block
Diameter 160 mm (6.30 inch)
Maximum depth 95 mm (3.74 inch)
Ceiling thickness 9 to 25 mm (0.35 to 0.98 inch)
Mounting cut-out 145 mm (5.71 inch)
Speaker diameter 101.6 mm (4 in)
Weight 640 g (1.41 lb)
Color White (RAL 9010)
Magnet weight 101 g (3.57 oz)
Operating temperature -25 ºC to +55 ºC (-13 ºF to +131 ºF)
Storage and transport temperature -40 ºC to +70 ºC (-40 ºF to +158 ºF)
Relative humidity <95%

Ceramic connection adapter

CTN LBC1256/00
Product No. F.01U.505.935

Emergency connection adapter, 3-pole screw ceramic connector with a pre-mounted thermal fuse, to be installed in series with the 100 V primary connection of a loudspeaker unit, set of 100 pieces.

Parts included with this product

Quantity Component
1 LBC3951/12 Ceiling loudspeaker
1 145-mm circular template

Title Type Language
Title
Declaration of Conformity (DECL EC LBC3951/12)
Type
PDF
Language
en-US 
Title
Datasheet (LBC3951-12)
Type
PDF
Language
Title
Quick installation guide (LBC3951-12)
Type
PDF
Language
en-US 
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