Bosch LBC 3481/12 Guide

LBC 3481/12 LBC 3491/12
LBC 3492/12 LBC 3493/12

Technical performance data acc. to IEC 268-5
LBC 3481/12
Max. power 15 W
Rated power (PHC) 10 W (10 - 5 - 2.5 W)
Sound pressure level at rated power/1 W 11 dB/10 dB (SPL)
(at 1 kHz, 1 m)
Effective frequency range (-10 dB) 500 Hz to 7 kHz
Opening angle (at 1 kHz/4 kHz, -6dB) 160°/50°
Rated voltage 100 V
Rated impedance 1000 Ω
Ambient temperature range -25 to +55 °C
Water- and dust protected acc. to IEC 60529 IP 65
Safety acc. to EN 60065
Connection 4-wire cable, 2 m long
Dimensions
aperture dia. 156 mm (6.14 in)
overall length 184 mm (7.24 in)
Colour Light grey (RAL 70 5)
Weight 1.25 kg (2.75 lb)
Dimensions (in mm and inches) Circuit diagram
Frequency response

Technical performance data acc. to IEC 268-5
LBC 34 1/12
Max. power 15 W
Rated power (PHC) 10 W (10 - 5 - 2.5 W)
Sound pressure level at rated power/1 W 118 dB/108 dB (SPL)
(at 1 kHz, 1 m)
Effective frequency range (-10 dB) 480 Hz to 5.5 kHz
Opening angle (at 1 kHz/4 kHz, -6dB)
horizontal 90°/40°
vertical 1 0°/45°
Rated voltage 100 V
Rated impedance 1000 Ω
Ambient temperature range -25 to +55 °C
Water- and dust protected acc. to IEC 60529 IP 65
Safety acc. to EN 60065
Connection 4-wire cable, 2 m long
Dimensions
aperture 267 x 171 mm (10.51 x 6.7 in)
overall length 276 mm (10.87 in)
Colour Light grey (RAL 70 5)
Weight 1.4 kg ( .08 lb)
Dimensions (in mm and inches) Circuit diagram
Frequency response

Technical performance data acc. to IEC 268-5
LBC 34 2/12
Max. power 0 W
Rated power (PHC) 20 W (20 - 10 - 5 W)
Sound pressure level at rated power/1 W 12 dB/110 dB (SPL)
(at 1 kHz, 1 m)
Effective frequency range (-10 dB) 80 Hz to 5.5 kHz
Opening angle (at 1 kHz/4 kHz, -6dB) 80°/ 5°
Rated voltage 100 V
Rated impedance 500 Ω
Ambient temperature range -25 to +55 °C
Water- and dust protected acc. to IEC 60529 IP 65
Safety acc. to EN 60065
Connection 4-wire cable, 2 m long
Dimensions
aperture dia. 54 mm (1 .94 in)
overall length 2 mm (1 .07 in)
Colour Light grey (RAL 70 5)
Weight 2.65 kg (5.8 lb)
Dimensions (in mm and inches) Circuit diagram
Frequency response

Technical performance data acc. to IEC 268-5
LBC 34 3/12
Max. power 45 W
Rated power (PHC) 0 W ( 0 - 15 - 7.5 W)
Sound pressure level at rated power/1 W 126 dB/111 dB (SPL)
(at 1 kHz, 1 m)
Effective frequency range (-10 dB) 80 Hz to 5 kHz
Opening angle (at 1 kHz/4 kHz, -6dB) 70°/40°
Rated voltage 100 V
Rated impedance Ω
Ambient temperature range -25 to +55 °C
Water- and dust protected acc. to IEC 60529 IP 65
Safety acc. to EN 60065
Connection 4-wire cable, 2 m long
Dimensions
aperture dia. 400 mm (15.75 in)
overall length 5 mm (1 .90 in)
Colour Light grey (RAL 70 5)
Weight kg (6.6 lbs)
Dimensions (in mm and inches) Circuit diagram
Frequency response

LBC 3481/12
Polar diagram (measured with pink noise)
LBC 3491/12
Polar diagram vertical (measured with pink noise) Polar diagram horizontal (measured with pink noise)
LBC 3492/12
Polar diagram (measured with pink noise)
LBC 3493/12
922 988 98512 1/0
© 200 Bosch Security Systems Data subject to change without notice.
Polar diagram (measured with pink noise)